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Chen, MN

Andrew W. Chen, Woodbury, MN US

Patent application numberDescriptionPublished
20100252047REMOTE FLUORINATION OF FIBROUS FILTER WEBS - A method of making a fluorinated fibrous web, which method includes providing a nonwoven web 10-07-2010
20110162653REMOTE FLUORINATION OF FIBROUS FILTER WEBS - A method of making a fluorinated fibrous web, which method includes providing a nonwoven web 07-07-2011
20120121238APPARATUS AND METHODS FOR DELIVERING A HEATED FLUID - Herein are disclosed apparatus and methods for delivering a heated fluid. The apparatus comprises at least a preheat zone, an expansion zone, and an expanded zone comprising a plurality of trim heaters, at least one fluid flow-distribution sheet, and an outlet.05-17-2012
20120256357USE OF COANDA EFFECT DEVICES TO PRODUCE MELTBLOWN WEBS WITH IMPROVED SIDE-TO-SIDE UNIFORMITY - An apparatus for producing meltblown webs includes a meltblowing die having a plurality of filament outlets, a collector for receiving filaments of polymeric material expelled from the filament outlets, and a first Coanda effect device positioned adjacent to the path of the filaments adjacent to the last filament outlet at an end of the meltblowing die. Methods of forming meltblown webs using such an apparatus are also disclosed.10-11-2012
20150024148REMOTE FLUORINATION OF FIBROUS FILTER WEBS - A method of making a fluorinated fibrous web, which method includes providing a nonwoven web 01-22-2015

Patent applications by Andrew W. Chen, Woodbury, MN US

Cheng-Tsun Chen, New Brighton, MN US

Patent application numberDescriptionPublished
20090056926Heat exchanger - A heat exchanger includes a plate member having several continuously folded plates defining a first opening for reception of a fluid from a first direction and a second opening for reception of another fluid from a second direction, and a frame body enclosing the plate member. The frame body has bottom and top plates, left and right plates, and front and rear plates. Each left and right plate has a height smaller than a width of the folded plate member so that the left and right plate define an upper left hole and a lower left hole in cooperation with the top and bottom plates, and that the right plate defines an upper right hole and a lower right hole in cooperation with the top and bottom plates. Two gasket sheets are disposed on inner surfaces of the top and bottom plates in order to abut hermetically against top and bottom edges of the continuously folded plates.03-05-2009

Christopher Y. Chen, Rochester, MN US

Patent application numberDescriptionPublished
20110159571ADENOVIRUS TARGETING - This document provides methods and materials involved in targeting adenoviruses. For example, this document provides nucleic acid molecules encoding a γ-carboxylated glutamic acid (GLA) domain of a factor X (fX) polypeptide, polypeptides having a GLA domain of a fX polypeptide, adenoviruses containing such nucleic acid molecules, adenoviruses containing such polypeptides, adenoviruses containing such nucleic acid molecules and such polypeptides, and compositions containing therapeutic adenoviral vectors and polypeptides having a GLA domain of an fX polypeptide. In addition, methods and materials for using adenoviruses as viral vectors to deliver nucleic acid to cells other than hepatocytes in vivo, methods and materials for using adenoviruses as vaccines, and methods and materials for using adenoviruses to treat cancer are provided.06-30-2011

Chuanqi Chen, Maple Grove, MN US

Patent application numberDescriptionPublished
20110175997HIGH SPEED OPTICAL INSPECTION SYSTEM WITH MULTIPLE ILLUMINATION IMAGERY - An optical inspection system (07-21-2011

Daniel T. Chen, St. Paul, MN US

Patent application numberDescriptionPublished
20130213454COATINGS FOR OPTICAL COMPONENTS OF SOLAR ENERGY SYSTEMS - The present application is directed to a method of providing a coating to a surface of an optical element of a solar energy conversion system. The method comprises contacting the surface of the optical element with an aqueous coating composition comprising water and silica nanoparticles dispersed in the water, and drying the coating composition to form a nanoparticle coating. The coating composition has a pH of the composition of 5 or higher. The coating composition comprises an aqueous continuous liquid phase; silica nanoparticles having a volume average particle diameter of 150 nanometers or less dispersed in the aqueous continuous liquid phase; and an organic polymer binder.08-22-2013
20130220402COATINGS FOR OPTICAL COMPONENTS OF SOLAR ENERGY SYSTEMS - The present application is directed to a method of providing a coating to a surface of an optical element of a solar energy conversion system. The method comprises coating the surface of the optical element with an aqueous coating composition comprising water and silica nanoparticles dispersed in the water; and drying the coating composition to form a nanoparticle coating. The silica nanoparticles comprise a polymer core surrounded by a shell comprising nonporous silica particles disposed on the polymer core.08-29-2013
20130319493COATINGS FOR OPTICAL COMPONENTS OF SOLAR ENERGY SYSTEMS - The present application is directed to a method of providing a coating to a surface of an optical element of a solar energy conversion system. The method comprises contacting the surface of the optical element with an aqueous coating composition comprising water and silica nanoparticles dispersed in the water and drying the coating composition to form a nanoparticle coating. The coating composition comprises an aqueous dispersion with a pH of less than 5 and an acid having a pKa of <3.5.12-05-2013
20140083481PHOTOVOLTAIC MODULE - A photovoltaic module including a backsheet and a plurality of photovoltaic cells overlying the backsheet is disclosed. The backsheet has open areas not covered by the photovoltaic cells. The backsheet may be a reflective backsheet that includes a multilayer optical film, or the photovoltaic module may include a reflective multilayer optical film separate from the backsheet. The multilayer optical film has an optical stack with a plurality of alternating first and second optical layers having different indices of refraction and a left band edge in a range from 600 nanometers to 900 nanometers. The multilayer optical film reflects at least a portion of light in a range of wavelengths that corresponds with the absorption bandwidth of the photovoltaic cell.03-27-2014

Daniel T. Chen, Saint Paul, MN US

Patent application numberDescriptionPublished
20150136731DURABLE SOLAR MIRROR FILMS - The present disclosure generally relates to durable solar mirror films, methods of making durable solar mirror films, and constructions including durable solar mirror films. Some embodiments of the present disclosure relate to methods of making solar mirror films that do not include a reflective layer material across the entire weatherable layer. Some embodiments relate to a method of making a solar mirror film involving providing a weatherable layer having a first major surface and a second major surface; depositing a reflective material on the first major surface of the weatherable layer; and removing a portion of the reflective material (e.g., ultrasonically, mechanically, or thermally).05-21-2015
20150155411PHOTOVOLTAIC MODULES COMPRISING LIGHT DIRECTING MEDIUMS AND METHODS OF MAKING THE SAME - The present disclosure generally relates to photovoltaic modules and methods of making photovoltaic modules. One exemplary photovoltaic module includes a plurality of photovoltaic cells including a first photovoltaic cell and a second photovoltaic cell spaced apart from one another to form an area that is free of photovoltaic cells; an electrical connector connecting at least the first and second photovoltaic cells; and a light directing medium positioned on at least a portion of the first photovoltaic cell.06-04-2015

Dingguo Chen, Eden Prairie, MN US

Patent application numberDescriptionPublished
20100114393APPARATUS AND METHOD FOR PREDICTIVE CONTROL OF A POWER GENERATION SYSTEM - A method for controlling a power system control area according to a first and a second control performance standard, wherein operation of the control area determines area control parameter values. The method comprises (a) determining a first compliance target for the first performance standard and a second compliance target for the second performance standard (05-06-2010
20160061189SYSTEMS, METHODS AND APPARATUS FOR IMPROVED ENERGY MANAGEMENT SYSTEMS WITH SECURITY-ORIENTED PROBABILISTIC WIND POWER GENERATION DISPATCH - Embodiments provide systems, methods and apparatus for controlling an energy delivery system including providing an energy management system (EMS) having a wind power management (WPM) system and using the WPM system for determining sensitivity values for a plurality of wind farms within the energy delivery system; maximizing wind power generation from the plurality of wind farms within a set of security limits defined based on the sensitivity values; minimizing wind power generation loss from the plurality of wind farms; determining wind farm security-priority groups; minimizing wind power generation production cost based on cost priority of the wind farms in each security-priority group; and minimizing wind power generation production cost based on energy bids for each wind farm in each security-priority group. Numerous other aspects are provided.03-03-2016

Patent applications by Dingguo Chen, Eden Prairie, MN US

Frank C. Chen, Rochester, MN US

Patent application numberDescriptionPublished
20100159478BIOMARKERS FOR CHRONIC VASCULAR DYSFUNCTION - Materials and methods for using biomarkers to determine prognosis and response to treatment in subjects having chronic vascular dysfunction.06-24-2010

Haigang Chen, Plymouth, MN US

Patent application numberDescriptionPublished
20130143941PHARMACEUTICAL COMPOSITIONS OF SPIRO-OXINDOLE COMPOUND FOR TOPICAL ADMINISTRATION AND THEIR USE AS THERAPEUTIC AGENTS - This invention is directed to pharmaceutical compositions for topical administration to a mammal, wherein the pharmaceutical compositions comprise a spiro-oxindole compound, as an enantiomer, a racemate or a non-racemic mixture, or a pharmaceutically acceptable salt thereof. These pharmaceutical compositions are useful for the treatment and/or prevention of sodium channel-mediated diseases or conditions.06-06-2013

Horng H. Chen, Rochester, MN US

Patent application numberDescriptionPublished
20100197574AQUARETIC AND NATRIURETIC POLYPEPTIDES LACKING VASODILATORY ACTIVITY - This document provides aquaretic and natriuretic polypeptides. For example, this document provides polypeptides having aquaretic and/or natriuretic activities. In some cases, a polypeptide provided herein can have aquaretic and natriuretic activities, while lacking the ability to lower blood pressure. This document also provides methods and materials for inducing aquaretic and/or natriuretic activities within a mammal.08-05-2010
20110152194CHIMERIC NATRIURETIC POLYPEPTIDES AND METHODS FOR INHIBITING CARDIAC REMODELING - Materials and methods related to chimeric polypeptides containing the amino acid sequence of CNP and the C-terminal sequence of DNP. The polypeptides are natriuretic and diuretic, GFR enhancing, cardiac unloading, renin inhibiting and less hypotensive when compared to BNP. The polypeptides also inhibit cardiac fibroblast proliferation.06-23-2011
20110269684NATRIURETIC POLYPEPTIDES FOR REDUCING OR PREVENTING RESTENOSIS - Materials and Methods related to using natriuretic polypeptides to reduce proliferation of smooth muscle cells, and to reduce or prevent restenosis.11-03-2011
20130023478AQUARETIC AND NATRIURETIC POLYPEPTIDES LACKING VASODILATORY ACTIVITY - This document provides aquaretic and natriuretic polypeptides. For example, this document provides polypeptides having aquaretic and/or natriuretic activities. In some cases, a polypeptide provided herein can have aquaretic and natriuretic activities, while lacking the ability to lower blood pressure. This document also provides methods and materials for inducing aquaretic and/or natriuretic activities within a mammal.01-24-2013
20130143820DIURETIC AND NATRIURETIC POLYPEPTIDES - This document provides diuretic and natriuretic polypeptides. For example, this document provides polypeptides having diuretic and/or natriuretic activities. In some cases, a polypeptide provided herein can have diuretic and natriuretic activities, while lacking the ability to lower blood pressure. This document also provides methods and materials for inducing diuretic and/or natriuretic activities within a mammal.06-06-2013
20130281375NATRIURETIC POLYPEPTIDES FOR REDUCING OR PREVENTING RESTENOSIS - Materials and methods related to using natriuretic polypeptides to reduce proliferation of smooth muscle cells, and to reduce or prevent restenosis.10-24-2013
20130296241AQUARETIC AND NATRIURETIC POLYPEPTIDES LACKING VASODILATORY ACTIVITY - This document provides aquaretic and natriuretic polypeptides. For example, this document provides polypeptides having aquaretic and/or natriuretic activities. In some cases, a polypeptide provided herein can have aquaretic and natriuretic activities, while lacking the ability to lower blood pressure. This document also provides methods and materials for inducing aquaretic and/or natriuretic activities within a mammal.11-07-2013
20140066367SUBCUTANEOUS DELIVERY OF A LONG-ACTING NATRIURETIC PEPTIDE - This document provides methods and material related to natriuretic polypeptides. For example, substantially pure polypeptides having a natriuretic peptide activity, nucleic acids encoding polypeptides having a natriuretic peptide activity, host cells containing such nucleic acids, and methods for inducing a natriuretic or diuretic activity within a mammal are provided.03-06-2014
20140179605NATRIURETIC POLYPEPTIDE DELIVERY SYSTEMS - This document provides natriuretic polypeptide delivery systems. For example, methods and materials related to natriuretic polypeptide delivery systems, methods and materials related to the use of such delivery systems to deliver natriuretic polypeptides to a mammal over a pro-longed period of time (e.g., weeks to months), and methods and materials related to treating heart failure conditions are provided.06-26-2014
20140357561NATRIURETIC POLYPEPTIDE DELIVERY SYSTEMS - This document provides natriuretic polypeptide delivery systems. For example, methods and materials related to natriuretic polypeptide delivery systems, methods and materials related to the use of such delivery systems to deliver natriuretic polypeptides to a mammal over a pro-longed period of time (e.g., weeks to months), and methods and materials related to treating heart failure conditions are provided.12-04-2014
20150368312INSULIN SECRETING POLYPEPTIDES - This document provides methods and materials related to insulin secreting polypeptides. For example, polypeptides having the ability to induce insulin secretion and methods and materials for using use such polypeptides to induce insulin secretion and to treat diabetes are provided.12-24-2015
20150374793DIURETIC AND NATRIURETIC POLYPEPTIDES - This document provides diuretic and natriuretic polypeptides. For example, this document provides polypeptides having diuretic and/or natriuretic activities. In some cases, a polypeptide provided herein can have diuretic and natriuretic activities, while lacking the ability to lower blood pressure. This document also provides methods and materials for inducing diuretic and/or natriuretic activities within a mammal.12-31-2015
20150376255AQUARETIC AND NATRIURETIC POLYPEPTIDES LACKING VASODILATORY ACTIVITY - This document provides aquaretic and natriuretic polypeptides. For example, this document provides polypeptides having aquaretic and/or natriuretic activities. In some cases, a polypeptide provided herein can have aquaretic and natriuretic activities, while lacking the ability to lower blood pressure. This document also provides methods and materials for inducing aquaretic and/or natriuretic activities within a mammal.12-31-2015

Patent applications by Horng H. Chen, Rochester, MN US

Ji Chen, Woodbury, MN US

Patent application numberDescriptionPublished
20090156908Deriving Patient Activity Information from Sensed Body Electrical Information - Electrodes of a subcutaneous monitoring system receive body electrical signals that indicate both cardiac and non-cardiac muscle activity. In general, non-cardiac muscle activity is often correlated with physical activity, and physical activity is typically a strong indicator of patient health. Exemplary systems and methods that detect non-cardiac muscle activity information in sensed body electrical waveforms may provide a diagnostic tool for monitoring physical activity level over time in patients that have subcutaneous monitoring systems. In an illustrative embodiment, systems and methods for presenting patient activity information in a graphical format over intervals of time include processing ECG waveform information to identify and to accumulate non-cardiac muscular activity information during each of the intervals of time. In various implementations, number, intensity, and/or duration of the events that are identified during a time interval may be accumulated and stored for subsequent recall.06-18-2009
20090326398SENSING BIOLOGICAL DATA - A system is provided for obtaining and analyzing biological data of a subject. The system includes a biological data recording device that can sense biological signals of a subject over time and record the sensed biological signals as biological data. The system also includes an event time recording device that is physically separate from, and does not communicate with, the biological data recording device. The event time recording device includes a user actuatable component, and also includes a recording component that records user actuation data, which includes a time stamp indication as to when any instances of user actuation occurred. The system also includes equipment that can periodically receive the recorded biological data from the biological data recording device and the user actuation data from the event time recording device, and can correlate the biological data and the user actuation data to generate correlated biological data.12-31-2009
20120143031Deriving Patient Activity Information from Sensed Body Electrical Information - Electrodes of a subcutaneous monitoring system receive body electrical signals that indicate both cardiac and non-cardiac muscle activity. In general, non-cardiac muscle activity is often correlated with physical activity, and physical activity is typically a strong indicator of patient health. Exemplary systems and methods that detect non-cardiac muscle activity information in sensed body electrical waveforms may provide a diagnostic tool for monitoring physical activity level over time in patients that have subcutaneous monitoring systems. In an illustrative embodiment, systems and methods for presenting patient activity information in a graphical format over intervals of time include processing ECG waveform information to identify and to accumulate non-cardiac muscular activity information during each of the intervals of time. In various implementations, number, intensity, and/or duration of the events that are identified during a time interval may be accumulated and stored for subsequent recall.06-07-2012

Jilin Chen, Minneapolis, MN US

Patent application numberDescriptionPublished
20110145719PEOPLE RECOMMENDATION INDICATOR METHOD AND APPARATUS IN A SOCIAL NETWORKING SITE - An indicator method and system recommends people in a computerized social networking site. Indicators in a user interface indicate user-relatedness and/or connectedness information between a given user and other people of the social networking site. The user interface employs the indicators to consistently make people recommendations to the given user. The indicators may be visual including symbolic, graphically illustrative and recommendation score (extent) indicating. The user interface places and displays the indicator at each occurrence of the recommended person's name and/or image throughout each pertinent screen view/page of the social networking site.06-16-2011
20110252027System And Method For Recommending Interesting Content In An Information Stream - A system and method for recommending interesting content is provided. A content profile including a vector of words extracted from messages associated with a user is obtained. One or more content pointer profiles each including a vector of words associated with a content pointer located within one or more messages are obtained. The content profile is compared with each of the content pointer profiles. A relevance score is determined for that content pointer by calculating a similarity between the user words and the content pointer words. The content pointers are ranked based on the relevance score. A threshold is applied to select the content pointers and those content pointers that satisfy the threshold are selected as the content pointers most relevant to the user.10-13-2011

Jim C. Chen, Rochester, MN US

Patent application numberDescriptionPublished
20090299927INTEGRATED METHOD OF ENSURING INSTANT MESSAGING SECURITY ON CONFIDENTIAL SUBJECT MATTER - An instant messaging system for securing chat sessions containing confidential subject matter during instant messaging from external entities, the system comprising: a rules engine module configured to continuously build and update a set of rules used to determine when a chat session between a first chat party and a second chat party during an instant messaging session contains confidential or uniquely classified subject matter by loading at least one default rules or previous session rules and enabling a user to provide user-defined rules until the instant message session is ended; and an instant messaging module configured to secure the contents in the chat session based on pre-defined user settings, the contents in the chat session being secured when the contents in the chat session is determined to contain confidential subject matter derived from the set of rules, the chat session is further secured by limiting the exposure of the contents in the chat session to third parties when the chat session is determined to contain confidential subject matter while enabling the first chat party and the second chat party to view the contents in the chat session.12-03-2009
20100026715Image Capture and Buffering in a Virtual World Using Situational Measurement Averages - A technique is disclosed for detecting photo opportunities within a virtual environment. In response to detecting a photo opportunity, images of the virtual environment may be captured from perspectives not limited to the user's viewport. A variety of physiological and virtual world parameters are measured to determine when to capture an image of a user interacting with the virtual environment. To improve the quality of images, these parameters may be individually weighted by factors specified by the user. Captured images may be stored in a temporary buffer space, possibly replacing older images. The user may view the buffer contents and select ideal images to move to a permanent gallery. The user's image selections can in turn be used to further improve the quality of future images.02-04-2010
20100026716Image Capture and Buffering in a Virtual World - A technique is disclosed for detecting photo opportunities within a virtual environment. In response to detecting a photo opportunity, images of the virtual environment may be captured from perspectives not limited to the user's viewport. A variety of physiological and virtual world parameters are measured to determine when to capture an image of a user interacting with the virtual environment. To improve the quality of images, these parameters may be individually weighted by factors specified by the user. Captured images may be stored in a temporary buffer space, possibly replacing older images. The user may view the buffer contents and select ideal images to move to a permanent gallery. The user's image selections can in turn be used to further improve the quality of future images.02-04-2010
20100180214Predatory Behavior Detection and Alert in Virtual Worlds Based on Spatial and Temporal Criteria - Embodiments of the invention provide techniques for protecting a user from being followed by an avatar within an immersive virtual environment. To detect a following avatar, any avatars within a specified range of the user may be identified. Historical data may then be examined to determine if any of the identified avatars has been in the same recent virtual locations as the user. In order to rule out coincidental movements, the likelihood of both avatars being in the same places at the same time may be evaluated. Further, the following avatar may be tested by transporting the user to another location, and then monitoring to determine whether the following avatar also transports to the same location. Upon confirming that the following avatar is actually following the user, avoidance actions may be performed in order to avoid the following avatar.07-15-2010
20100180215Detecting Avatar Following in a Virtual Environment - Embodiments of the invention provide techniques for protecting a user from being followed by an avatar within an immersive virtual environment. To detect a following avatar, any avatars within a specified range of the user may be identified. Historical data may then be examined to determine if any of the identified avatars has been in the same recent virtual locations as the user. In order to rule out coincidental movements, the likelihood of both avatars being in the same places at the same time may be evaluated. Further, the following avatar may be tested by transporting the user to another location, and then monitoring to determine whether the following avatar also transports to the same location. Upon confirming that the following avatar is actually following the user, avoidance actions may be performed in order to avoid the following avatar.07-15-2010
20150127776STREAMING STATE DATA FOR CLOUD MANAGEMENT - A cloud manager uses streams to monitor state of the cloud. A cloud state streaming policy specifies state data to stream, along with one or more initial operators for processing the streams. An archive mechanism allows archiving the streamed data when specified data in the streams exceeds one or more defined thresholds. A user interface allows adjusting the streaming of cloud state data to focus on data of interest to a user. The cloud manager thus allows a user to determine state of a cloud via the streamed state data.05-07-2015
20150127810STREAMING STATE DATA FOR CLOUD MANAGEMENT - A cloud manager uses streams to monitor state of the cloud. A cloud state streaming policy specifies state data to stream, along with one or more initial operators for processing the streams. An archive mechanism allows archiving the streamed data when specified data in the streams exceeds one or more defined thresholds. A user interface allows adjusting the streaming of cloud state data to focus on data of interest to a user. The cloud manager thus allows a user to determine state of a cloud via the streamed state data.05-07-2015
20150128220LOCATION BASED AUTHENTICATION OF USERS TO A VIRTUAL MACHINE IN A COMPUTER SYSTEM - An apparatus and method uses location based authentication of a user accessing a virtual machine (VM) by using the physical location of the virtual machine as a criteria for the authentication. When a user requires a logical partition to run in a known, specified physical location, the user specifies the physical location when the VM is created. The specified physical location is then incorporated into the user authentication process. Users are challenged and must know the physical location in order to be authenticated to the system. When a “disruptive event” in the cloud environment occurs that necessitates moving the VM to another location, the original physical location is stored so the virtualization manager later can automatically relocate the VM back to its original physical location.05-07-2015
20150128221LOCATION BASED AUTHENTICATION OF USERS TO A VIRTUAL MACHINE IN A COMPUTER SYSTEM - An apparatus and method uses location based authentication of a user accessing a virtual machine (VM) by using the physical location of the virtual machine as a criteria for the authentication. When a user requires a logical partition to run in a known, specified physical location, the user specifies the physical location when the VM is created. The specified physical location is then incorporated into the user authentication process. Users are challenged and must know the physical location in order to be authenticated to the system. When a “disruptive event” in the cloud environment occurs that necessitates moving the VM to another location, the original physical location is stored so the virtualization manager later can automatically relocate the VM back to its original physical location.05-07-2015
20150331761HOST SWAP HYPERVISOR THAT PROVIDES HIGH AVAILABILITY FOR A HOST OF VIRTUAL MACHINES - A host swap hypervisor provides a high availability hypervisor for virtual machines on a physical host computer during a failure of a primary hypervisor on the physical host computer. The host swap hypervisor resides on the physical host computer that runs the primary hypervisor, and monitors failure indicators of the primary hypervisor. When the failure indicators exceed a threshold, the host swap hypervisor is then autonomically swapped to become the primary hypervisor on the physical host computer. The original primary hypervisor may then be re-initialized as the new host swap hypervisor.11-19-2015
20150331763HOST SWAP HYPERVISOR THAT PROVIDES HIGH AVAILABILITY FOR A HOST OF VIRTUAL MACHINES - A host swap hypervisor provides a high availability hypervisor for virtual machines on a physical host computer during a failure of a primary hypervisor on the physical host computer. The host swap hypervisor resides on the physical host computer that runs the primary hypervisor, and monitors failure indicators of the primary hypervisor. When the failure indicators exceed a threshold, the host swap hypervisor is then autonomically swapped to become the primary hypervisor on the physical host computer. The original primary hypervisor may then be re-initialized as the new host swap hypervisor.11-19-2015

Patent applications by Jim C. Chen, Rochester, MN US

John H. Chen, Plymouth, MN US

Patent application numberDescriptionPublished
20100286678Medical Devices - Medical systems and methods including balloons having nanotubes are disclosed. In some embodiments, a medical system includes an elongated shaft, and an expandable balloon carried by the shaft and including nanotubes. The medical system is capable of cooling the balloon to less than about 37° C. In some embodiments, a method includes providing a medical device having an elongated shaft, and an expandable balloon carried by the elongated shaft and including nanotubes; and cooling the balloon to less than about 37° C.11-11-2010

John Jianhua Chen, Plymouth, MN US

Patent application numberDescriptionPublished
20100047317USING BUCKY PAPER AS A THERAPEUTIC AID IN MEDICAL APPLICATIONS - Methods, systems, and uses of bucky paper are provided in the present invention. These embodiments include covering medical implants with single or multiple layers of bucky paper, treating bucky paper with various therapeutics to be released through the bucky paper to a target site, shaping bucky paper into non-conventional configurations for improved therapeutic deliver, and using bucky paper alone or in conjunction with other materials to treat a target site.02-25-2010
20100179645MEDICAL DEVICES HAVING MULTIPLE LAYERS - Described herein are medical devices which are configured for implantation or insertion into a subject, preferably a mammalian subject. The medical devices contain one or more multilayer regions, which contain: (a) one or more (typically a plurality of) charged nanoparticle layers and (b) one or more (typically a plurality of) charged polyelectroyte layers. Such multilayers have a number of desirable attributes, including high strength, non-compliance, and flexibility. Also described herein are methods of making such devices.07-15-2010
20100203181EXTRUSION APPARATUS FOR MAKING MULTILAYER ARTICLES - In certain aspects of the invention, an extrusion apparatus for making a multilayer article includes multiple discs, each of which has at least one passageway configured to permit fluid flow therethrough in a flow direction. At least one of the discs includes a cone shaped portion extending substantially parallel to the flow direction.08-12-2010
20100280452MEDICAL DEVICES HAVING MULTIPLE LAYERS - Described herein are medical devices which are configured for implantation or insertion into a subject, preferably a mammalian subject. The medical devices contain one or more multilayer regions, which contain: (a) one or more (typically a plurality of) charged nanoparticle layers and (b) one or more (typically a plurality of) charged polyelectroyte layers. Such multilayers have a number of desirable attributes, including high strength, non-compliance, and flexibility. Also described herein are methods of making such devices.11-04-2010
20120046608Medical Devices - The invention relates to medical balloons, and methods of modifying said balloons by forming a void pattern in their exterior surfaces and filling the voids with a material, such as a fiber or a nanomaterial (e.g., nanotubes, such as carbon nanotubes) and a matrix material, e.g., a polymer.02-23-2012
20120323301Medical Device Balloons with Improved Strength Properties and Processes for Producing the Same - A tubular parison for forming a medical device balloon. The parison is formed of a polymeric material, for instance a thermoplastic elastomer. The parison has an elongation at break which is not more than 80% of the elongation of the bulk polymeric material. The elongation of the parison is controlled by altering extrusion conditions. Balloons prepared from the parisons provide higher wall strength and/or higher inflation durability than balloons prepared from conventional parisons of the same material.12-20-2012
20130122060USING BUCKY PAPER AS A THERAPEUTIC AID IN MEDICAL APPLICATIONS - Methods, systems, and uses of bucky paper are provided in the present invention. These embodiments include covering medical implants with single or multiple layers of bucky paper, treating bucky paper with various therapeutics to be released through the bucky paper to a target site, shaping bucky paper into non-conventional configurations for improved therapeutic deliver, and using bucky paper alone or in conjunction with other materials to treat a target site.05-16-2013
20140243875MEDICAL BALLOON HAVING IMPROVED STABILITY AND STRENGTH - A medical device, the medical device formed at least in part from a melt blend of at least one polymer comprising hydrolysable groups and a carbodiimide.08-28-2014
20140330202MEDICAL DEVICE BALLOONS WITH IMPROVED STRENGTH PROPERTIES AND PROCESSES FOR PRODUCING SAME - A tubular parison for forming a medical device balloon. The parison is formed of a polymeric material, for instance a thermoplastic elastomer. The parison has an elongation at break which is not more than 80% of the elongation of the bulk polymeric material. The elongation of the parison is controlled by altering extrusion conditions. Balloons prepared from the parisons provide higher wall strength and/or higher inflation durability than balloons prepared from conventional parisons of the same material.11-06-2014
20150025533RENAL NERVE ABLATION CATHETER HAVING TWIST BALLOON - Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a catheter shaft. An expandable balloon may be coupled to the catheter shaft. The balloon may be capable of shifting between a folded configuration and an expanded configuration. A support structure may be coupled to the balloon. The support structure may be capable of shifting the balloon toward the folded configuration. A plurality of elongate flexible electrode assemblies may be disposed on the balloon. The elongate flexible electrode assemblies may be oriented at an angle relative to a longitudinal axis of the balloon.01-22-2015
20150051696MEDICAL GUIDEWIRE - A guidewire system may include a guidewire having a relatively stiff proximal section and a relatively flexible distal section joined by a transition region, and a TAVI device slidably disposed on the guidewire. The guidewire may include an expandable element disposed about the transition region. The expandable element may be configured to expand from a collapsed configuration to an expanded configuration. The guidewire may include an expandable element disposed at the distal end. The distal section may be pre-configured to form more than one distal loop. A method of protecting an apex of a left ventricle during a TAVI procedure may include inserting a guidewire into the left ventricle, positioning a transition region adjacent the apex, expanding an expandable element such that the expandable element spans the apex, advancing a TAVI device distally over the guidewire to an aortic valve, and performing a TAVI procedure at the aortic valve.02-19-2015
20150374958HIGH PRESSURE BALLOON - Composite fiber reinforced balloons for medical devices are prepared by applying a web of fibers to the exterior of a preformed underlayer balloon, encasing the web with a matrix material to form an assembly, and inserting the assembly into a preformed outer layer balloon to form the composite balloon.12-31-2015
20160089517DUAL-LAYER BALLOON DESIGN AND METHOD OF MAKING THE SAME - An expandable medical balloon, the expandable medical balloon comprising a first balloon wall, the first balloon wall comprising a first balloon layer of polyethylene terephthalate having a first intrinsic viscosity, the first layer is outer to a second layer of polyethylene terephthalate, the second balloon layer of polyethylene terephthalate having a second intrinsic viscosity, the second layer is an inner layer, wherein the intrinsic viscosity of the first balloon layer is higher than the intrinsic viscosity of the second balloon layer by about 0.05 dl/g or more.03-31-2016

Patent applications by John Jianhua Chen, Plymouth, MN US

John Jianhua Chen, Plymounth, MN US

Patent application numberDescriptionPublished
20090149948MEDICAL DEVICES CONTAINING SILICATE AND CARBON PARTICLES - According to one aspect of the present invention, implantable and insertable medical devices are provided which contain one or more particle-containing regions that comprise silicate particles and carbon particles.06-11-2009

Kaileen Chen, White Bear Lake, MN US

Patent application numberDescriptionPublished
20130217107BIOLOGICAL STERILIZATION INDICATOR SYSTEM AND METHOD - A biological sterilization indicator (BI) system and method. The system can include a BI and a reading apparatus comprising a well. The BI can include a housing, which can include a first portion, and a second portion movable between a first “unactivated” position and a second “activated” position. The reading apparatus can detect at least one of (i) when the well is empty; (ii) when the biological sterilization indicator is positioned in the well with the second portion of the housing in the first position, and (iii) when the biological sterilization indicator is positioned in the well with the second portion of the housing in the second position. The method can include detecting at least one of the above conditions, which can be used to detect an activation status of the biological sterilization indicator.08-22-2013

Kaimin Chen, Shoreview, MN US

Patent application numberDescriptionPublished
20140186713CARBON FLUORIDE CATHODES AND BATTERIES MADE THEREFROM - Electrochemical cells containing a stoichiometric capacity ratio of carbon-treated carbon monofluoride to carbon monofluoride being greater than 1:1 provide electrochemical cells having a tunable end-of-service indication.07-03-2014
20140212736CATHODE COMPOSITION FOR PRIMARY BATTERY - In some examples, a primary battery comprising a cathode comprising at least one active material and at least one of a metal oxide and metal fluoride, wherein the active material exhibits a first discharge capacity and the at least one of metal oxide and metal fluoride exhibits a second discharge capacity at a voltage lower than the first discharge capacity; an anode comprising a metal as an electron source; and an electrolyte between the cathode and anode. The metal reacts with the electrolyte below a third discharge capacity at a voltage lower than the second discharge capacity to form a gas, where the metal reacts with the active material at the first discharge capacity, and, following the consumption of the active material of the cathode, the metal reacts with the at least one of metal oxide and metal fluoride of the cathode prior to reacting with the electrolyte below the third discharge capacity.07-31-2014
20150311532BATTERIES AND CATHODES CONTAINING CARBON NANOTUBES - Cathodes containing active materials and carbon nanotubes are described. The use of carbon nanotubes in cathode materials can provide a battery having increased longevity and volumetric capacity over batteries that contain a cathode that uses conventional conductive additives such as carbon black or graphite.10-29-2015

Kaimin Chen, New Brighton, MN US

Patent application numberDescriptionPublished
20090181302ELECTROLYTE ADDITIVE FOR PERFORMANCE STABILITY OF BATTERIES - An organic additive to an electrolyte for a battery cell in an implantable medical device is presented. At least one organic additive is selected from a group comprising one of lithium salicylate, hydroxyphthalic anhydride, a hydroxybenzoic acid, salicylate ester, salicylamide, and salicylanilide.07-16-2009

Patent applications by Kaimin Chen, New Brighton, MN US

Lianzhou Chen, Woodbury, MN US

Patent application numberDescriptionPublished
20160053200Methods of Direct Addition of (Meth) Acrylic Acid to Bio-based oils - (Meth)acrylates are prepared in a single-step method from a mixture of (meth)acrylic acid and at least one biobased oil and/or its derivative(s), including at least one unsaturation. The (meth)acrylates are made by directly adding the (meth)acrylic acid to the biobased oil by reacting in the presence of an acid catalyst, including an inorganic or organic acid having at least one oxygen atom present thereon and which possesses at least one acid functionality having an ionization constant in water which is not greater than 3.02-25-2016

Lieping Chen, Rochester, MN US

Patent application numberDescriptionPublished
20090022747B7-H3 AND B7-H4, NOVEL IMMUNOREGULATORY MOLECULES - The invention provides novel B7-H3 and B7-H4 polypeptides useful for co-stimulating T cells, isolated nucleic acid molecules encoding them, vectors containing the nucleic acid molecules, and cells containing the vectors. Also included are methods of making and using these co-stimulatory polypeptides.01-22-2009
20120027759METHODS OF ENHANCING T CELL RESPONSIVENESS - The invention features methods of enhancing the responsiveness of a T cell. Such methods involve interfering with the interaction between a T cell and a B7-H1 molecule.02-02-2012

Patent applications by Lieping Chen, Rochester, MN US

Ling Chen, Rosevillle, MN US

Patent application numberDescriptionPublished
20140105807Non-thermal plasma synthesis with carbon component - The disclosure herein describes a method for producing ammonia by introducing N04-17-2014

Ling Chen, Roseville, MN US

Patent application numberDescriptionPublished
20110233047Non-thermal plasma synthesis with carbon component - The disclosure herein describes a method for producing ammonia by introducing N09-29-2011

Linsheng Chen, Woodbury, MN US

Patent application numberDescriptionPublished
20150078030OPTICAL COUPLER FOR VEHICLE LIGHTING SYSTEMS - An optical coupler for a vehicle lighting system includes a housing having first and second openings, each opening having an optical axis passing through the opening into the housing, with the optical axes of the openings forming an obtuse angle. The optical coupler has one or more optics carried by the housing and arranged between the openings such that light entering the first opening along its optical axis passes through the one or more optics and exits through the second opening along the other optical axis. The optic(s) may include a first Fresnellian surface adjacent the first opening and a second Fresnellian surface adjacent the second opening such that light passing through the optical coupler from the first opening to the second opening passes through both Fresnellian surfaces and is redirected from the optical axis of the first opening to the optical axis of the second opening.03-19-2015

Liqiang Chen, Shoreview, MN US

Patent application numberDescriptionPublished
20110212986ANTI-FLAVIVIRUS THERAPEUTIC - The present invention relates to anti-flavivirus compounds, including lycorine and derivatives thereof, and their use in treating a subject infected by a flavivirus. The present invention also relates to the use of the anti-flavivirus compounds for the prophylaxis of flavivirus infection. The present invention further relates to a method of suppressing viral RNA synthesis of a flavivirus. Also described is a method of preparing an anti-flavivirus compound for use in the treatment or prophylaxis of flavivirus infection.09-01-2011

Lisa P. Chen, Saint Paul, MN US

Patent application numberDescriptionPublished
20090029177HIGHLY WATER REPELLENT FLUOROPOLYMER COATING - Highly water repellent coated articles may be made by applying to a substrate a coating having dispersed therein or sprinkled thereon partially or fully fluorinated polymer microparticles. The coating includes a partially fluorinated hexafluoropropylene copolymer binder in a nonfluorinated solvent that dissolves the binder and does not dissolve the microparticles. The coating is heated sufficiently to bond the microparticles to the binder but not so much as to cause the receding water contact angle for the coating to fall below 80°.01-29-2009

Lisa P. Chen, St. Paul, MN US

Patent application numberDescriptionPublished
20100022702THERMALLY STABLE FLUOROPOLYMERS - A fluorinated polymer composition, an article made with the fluorinated polymer composition and a method of making the fluorinated polymer are provided. The method comprises a partially fluorinated polymer which has carboxylic or carboxylate end groups and forming a potassium salt with the end groups of the fluorinated polymer through ion exchange. The resulting partially fluorinated polymers demonstrate high thermal stability without the addition of thermal stabilizers.01-28-2010

Luke Y. Chen, Roseville, MN US

Patent application numberDescriptionPublished
20080221438AUTOMATED CATALOG AND SYSTEM FOR CORRECTION OF INHOMOGENEOUS FIELDS - A method for providing a localization system with detailed information regarding a catheter's construction, while at the same time preventing operator input errors, for use in a three-dimensional localization field, including providing a catheter having at least one feature, providing a catheter catalog for use by the localization system, wherein the catheter catalog comprises reference data relating to features of the catheter, placing the catheter into the localization field, creating a map with the localization field, locating the catheter on the map, and correlating features of the catheter within the localization field with measurements made by the localization system when the feature is at various locations.09-11-2008

Qingshan Chen, Rochester, MN US

Patent application numberDescriptionPublished
20130030543HIP IMPLANT - Provided herein are hip implant devices and related surgical methods. The hip implants and methods can optionally be used in patients of Asian descent.01-31-2013
20130131823ACETABULAR CUP PROSTHESIS - Provided are acetabular cup implant assemblies that can be used in hip replacement surgery. Example assemblies comprise a shell and a liner. The liner can be positioned within a shell. Optionally, the liner can be rotated relative to the shell until the liner is seated in the shell in a position where the liner and shell can be secured to one another. Waveform-shaped features of the shell and liner can guide the relative rotation of the liner and shell. Also provided are methods of seating a liner in shell of an acetabular cup implant assembly05-23-2013
20150245913ACETABULAR CUP PROSTHESIS - Provided are acetabular cup implant assemblies that can be used in hip replacement surgery. Example assemblies comprise a shell and a liner. The liner can be positioned within a shell. Optionally, the liner can be rotated relative to the shell until the liner is seated in the shell in a position where the liner and shell can be secured to one another. Waveform-shaped features of the shell and liner can guide the relative rotation of the liner and shell. Also provided are methods of seating a liner in shell of an acetabular cup implant assembly.09-03-2015

Sheng-Chieh Chen, St. Paul, MN US

Patent application numberDescriptionPublished
20130174643MEASUREMENT OF PARTICLE MORPHOLOGY USING FILTRATION - A system and method for characterizing a totality of particles selects a class of the totality of particles having a defined mobility; determines the total particle concentration of the class of particles; filters the class of particles using the filter apparatus and determines a filtered particle concentration indicative of the particles of the class which penetrate the filter apparatus; and determines at least one morphological parameter based on the fraction of particles of a class penetrating the filter apparatus.07-11-2013

Shigao Chen, Rochester, MN US

Patent application numberDescriptionPublished
20110063950VIBRATION GENERATION AND DETECTION IN SHEAR WAVE DISPERSION ULTRASOUND VIBROMETRY WITH LARGE BACKGROUND MOTIONS - A method for measuring a mechanical property of a subject includes using an ultrasonic transducer to apply ultrasonic vibration pulses to a vibration origin in the subject in an on-off time sequence in order to impart a harmonic motion at a prescribed frequency to the subject, and when the vibration pulses are off, preferably using the same transducer to apply ultrasonic detection pulses to a motion detection point and to receive echo signals therefrom in order to sense the harmonic motion on the subject at the motion detection point The ultrasonic detection pulses are interspersed with the vibration pulses and can be applied in a non-uniform manner From the received ultrasonic echo signals, a harmonic signal is detected and a characteristic such as amplitude or phase of the detected harmonic signal is calculated using a Kalman filter or interpolation.03-17-2011
20110263978Method for Shear Wave Ultrasound Vibrometry with Interleaved Push and Detection Pulses - A shear wave dispersion ultrasound vibrometry (“SDUV”) method for measuring a mechanical property of a subject is provided. Particularly, a set of ultrasonic vibration tone bursts is applied to a vibration origin in the subject so that harmonic vibratory motion is imparted to a tissue of interest. The set of vibration tone bursts effectively act like a single vibration pulse that imparts vibratory motion at larger amplitudes than achievable with a single pulse. Multiple ultrasonic detection pulses are then applied to two or more locations in the tissue of interest in order to measure shear waves propagating outward from the vibration origin. From these measurements, phase or amplitude information related to the shear wave propagation is determined and used to calculate a shear wave speed. Using the shear wave speed information, mechanical properties of the tissue are calculated.10-27-2011
20110319756Method for Ultrasound Vibrometry Using Orthogonal Basis Functions - A method for measuring a mechanical property of a subject includes using an ultrasound transducer to apply ultrasonic vibration pulses to a location in a subject in order to induce shear waves at multiple prescribed orthogonal frequencies in the subject. The ultrasound transducer is directed by an excitation signal that is composed of multiple orthogonal basis functions, each having a given frequency component corresponding to the prescribed orthogonal frequencies. The power level of each orthogonal basis function is independently adjustable. The excitation signal can be sparsely sampled, or portions of the excitation signal can be removed in order to improve tissue vibration and to provide for the interleaving ultrasonic vibration and detection pulses. Ultrasonic detection pulses are applied to at least one motion detection point, from which echo signals are received. From the received echo signals, a motion signal is determined, from which mechanical properties of the subject are calculated.12-29-2011
20120226158System and Method for Correcting Errors in Shear Wave Measurements Arising From Ultrasound Beam Geometry - A system and method for measuring mechanical properties of a tissue using an ultrasound system is provided. Ultrasound energy is applied to the tissue using the ultrasound system in order to produce shear waves that propagate in the tissue. Measurement data are then acquired by directing ultrasound detection pulses into the tissue. Information about the intensity field of the ultrasound energy used to produce the shear waves is obtained and used to produce a correction factor. This correction factor is applied to the measurement data to correct the measurement data for errors arising from the geometry of the ultrasound energy used to produce the shear waves. From the corrected measurement data, mechanical properties of the tissue are calculated.09-06-2012
20130237821System and Method for Model-Independent Quantification of Tissue Viscoelastic Properties Using Ultrasound - A model-independent method for producing a viscoelastic tissue property metric using ultrasound is provided. A mechanical stress, such as an acoustic force, is applied to a tissue using an ultrasound system and tissue displacement resulting from the applied acoustic force is measured. From the tissue displacement measurements, a complex modulus, such as a relative complex modulus, is extracted. A loss tangent is calculated from the extracted complex modulus. Using the calculated loss tangent, viscoelastic tissue property metrics may be calculated.09-12-2013
20140018679GENERATION AND ASSESSMENT OF SHEAR WAVES IN ELASTICITY IMAGING - A method for generation and analysis of shear waves in a subject with an ultrasound system. Multiple short ultrasound push pulses are applied, as a set and optionally more than once, to one or more push origins at the subject to produce first and second shear waves of large amplitudes and desired spatial distributions, which are separated in space and time and which have opposite polarity such that initial movements of the subject tissue, respectively caused by the first and second shear waves, occur in opposite directions. At least one mechanical property of the subject (including that represented by shear wave group velocity, phase velocity, and attenuation of a shear wave) is determined based at least in part on a distance between wavefronts of the first and second shear waves.01-16-2014
20140046173ULTRASOUND VIBROMETRY WITH UNFOCUSED ULTRASOUND - Methods for measuring mechanical properties of an object or subject under examination with an ultrasound system and using unfocused ultrasound energy are provided. Shear waves that propagate in the object or subject are produced by applying unfocused ultrasound energy to the object or subject, and measurement data is acquired by applying focused or unfocused ultrasound energy to at least one location in the object or subject at which shear waves are present Mechanical properties are then calculated from the acquired measurement data.02-13-2014
20150216507SYSTEM AND METHOD FOR SHEAR WAVE ELASTOGRAPHY BY TRANSMITTING ULTRASOUND WITH SUBGROUPS OF ULTRASOUND TRANDUCER ELEMENTS - Systems and methods for performing shear wave elastography using push and/or detection ultrasound beams that are generated by subsets of the available number of transducer elements in an ultrasound transducer. These techniques provide several advantages over currently available approaches to shear wave elastography, including the ability to use a standard, low frame rate ultrasound imaging system and the ability to measure shear wave speed throughout the entire field-of-view rather than only those regions where the push beams are not generated.08-06-2015
20150265249SYSTEM AND METHOD FOR SHEAR WAVE GENERATION WITH STEERED ULTRASOUND PUSH BEAMS - A system and method for performing a steered push beam (SPB) technique to create multiple foci generated by the interference of different ultrasound push beams to create shear waves and, based thereon, generate a report indicating mechanical properties about an object.09-24-2015
20150305719SHEAR WAVE ATTENUATION FROM K-SPACE ANALYSIS SYSTEM - The present invention provides a system and method for ultrasound processes using wave attenuation derived from k-space analysis by analyzing spatial frequency domain data.10-29-2015

Patent applications by Shigao Chen, Rochester, MN US

Song Chen, Edina, MN US

Patent application numberDescriptionPublished
20160133287WAVEGUIDES INCLUDING NOVEL CORE MATERIALS - Waveguides that include a top cladding layer; a bottom cladding layer; and a core layer positioned between the top cladding layer and the bottom cladding layer, the core layer including a material having a refractive index of not less than 2.1, for example amorphous hydrogenated silicon carbide (SiC:H), or bismuth titanate. Methods of forming core layers of waveguides are also disclosed.05-12-2016

Victor T. Chen, Minneapolis, MN US

Patent application numberDescriptionPublished
20080319494System and method for preventing recurrence of atrial tachyarrhythmia - A system and method for providing pacing pulses after a cardioversion/defibrillation shock, where the pacing pulses have a pacing rate at an initial value. The pacing rate is decreased from the initial value until at least one intrinsic cardiac contraction is detected. In one embodiment, the pacing rate is decreased by a set amount after pacing a set number of cardiac cycles. Providing the set number of pacing pulses and decreasing the pacing rate by the set amount is then repeated until at least one intrinsic cardiac contraction is detected. An intrinsic cardiac rate is then determined from the at least one intrinsic cardiac contraction. The pacing rate is then increased and maintained to be above (i.e., greater than) the intrinsic cardiac rate.12-25-2008
20100069844Devices and Methods for Interstitial Injection of Biologic Agents into Tissue - Apparatus and methods for injecting biological agents into tissue. Devices are provided having elongate shafts and distal injection heads for driving needles into tissue and injecting medical agents into the tissue through the needles. A longitudinal force directed along the shaft can be translated to a needle driving force. Some devices provide controllably variable needle penetration depth. Devices include mechanical needle drivers utilizing four link pantographs, rack and pinions, and drive yokes for driving a first needle bearing body toward a second tissue contacting body. Other devices include inflatable members for driving and retracting needles. Still other devices include magnets for biasing the needles in extended and/or retracted positions. The invention includes minimally invasive methods for epicardially injecting cardiocyte precursor cells into infarct myocardial tissue.03-18-2010
20100204742PATIENT CONTROLLED ATRIAL SHOCK THERAPY - An implanted cardiac device detects an atrial arrhythmia and provides periodically updated atrial arrhythmia status as long as the arrhythmia is ongoing. A patient may request an indication of ongoing atrial arrhythmia status from external to the patient using a patient activator. The patient activator may include a magnet for closing a reed switch in the implanted device to provide the request or may provide the request over a telemetry link to the implanted device. The implanted device may provide the requested atrial arrhythmia status and other information in the form of an audible tone produced by the implanted device or as a message telemetered from the implanted device to the patient activator. The patient activator may include a tone detector and display for providing a visual indication of the atrial arrhythmia status indication. The magnet activator may also be employed to request or withhold atrial shock therapy.08-12-2010
20100268293DELAY TO THERAPY FOLLOWING PATIENT CONTROLLED ATRIAL SHOCK THERAPY REQUEST - An implantable cardiac device detects a patient therapy request originating from external to the implantable device. A shock therapy delay period is timed in response to the detection of the patient therapy request. Atrial shock therapy is provided to the patient after expiration of the shock therapy delay period (if the presence of an ongoing atrial arrhythmia is detected). The patient therapy request may be provided by a patient activator including a magnet for operating a reed switch in the implanted device to provide the request. A patient activator including an input and receiver/transmitter circuitry may be employed to request the immediate providing of atrial shock therapy, and/or to set the duration the shock therapy delay period. By allowing specific delays to therapy after a therapy request, a patient can prepare for the requested therapy and thereby mitigate therapy discomfort.10-21-2010
20100305639METHOD AND APPARATUS FOR USING ATRIAL DISCRIMINATION ALGORITHMS TO DETERMINE OPTIMAL PACING THERAPY AND THERAPY TIMING - A system and method which employs atrial discrimination algorithms to distinguish between different atrial arrhythmias occurring in a patient for selecting an optimal pacing therapy corresponding to the type of arrhythmia identified. In response to the detection of an atrial rate above the atrial tracking rate, discrimination criteria are applied to a detected atrial activity signal to distinguish between different types of supraventricular tachycardia, such as fast atrial flutter and other atrial flutter at a relatively slower rate, which may be occurring in the patient. The pacer is controlled to provide pacing therapy to a heart in a manner corresponding to the type of supraventricular tachycardia identified. The output of an atrial discrimination algorithm may be tracked and the trend thereof used to improve therapy timing. Various embodiments are disclosed herein.12-02-2010

Patent applications by Victor T. Chen, Minneapolis, MN US

Weibin Chen, Bloomington, MN US

Patent application numberDescriptionPublished
20150043315NEAR-FIELD TRANSDUCER WITH ENLARGED REGION, PEG REGION, AND HEAT SINK REGION - A near-field transducer includes an enlarged region having a top side adjacent to a magnetic pole, a base side opposite the top side, and a circumference that extends from proximal to a media-facing surface to distal to a media-facing surface. The near-field transducer includes a peg region in contact with a region of the bas side of the enlarged region, the peg region extending from the enlarged region towards the media-facing surface. The near-field transducer also includes a heat sink region having a contact side, a base side, and a circumference that extends from proximal to the media-facing surface to distal from the media-facing surface. The contact side of the heat sink region is in thermal contact with both the peg region and at least a region of the base side of the enlarged region.02-12-2015
20150235658HEAT SINK LAYER ALONG AN APERTURE OF A NEAR-FIELD TRANSDUCER - A recording head includes a near-field transducer proximate a media-facing surface. The near-field transducer includes an aperture surrounded by walls of plasmonic material and a notch protruding within the aperture. The walls are oriented normal to the media-facing surface. A write pole is proximate the near-field transducer. The write pole has a back surface facing away from the media-facing surface and an aperture-facing surface proximate the aperture. A heat sink layer of the plasmonic material is disposed along the back surface and the aperture-facing surface of the write pole. The heat sink layer is thermally and optically coupled to the near-field transducer.08-20-2015
20150279399PLANAR PLASMON GENERATOR WITH THICKENED REGION AND PEG REGION - An apparatus (e.g., a heat assisted magnetic recording read/write element) that has an optical component that extends to a location adjacent a media-facing surface of a slider body. The apparatus further includes a planar plasmon antenna that is disposed between the tip portion of the magnetic write pole and the optical component. The planar plasmon antenna can be formed of a plasmonic material operationally capable of a plasmonic excitation in response to an evanescent coupling with an optical mode of the optical component. In some instances, the planar plasmon antenna includes an enlarged region spaced from the optical component and a peg region formed in the enlarged region. The peg region has a thickness in a direction substantially transverse to the optical component that is less than a thickness of a portion of the enlarged region that spaces the peg region from the optical component.10-01-2015
20160133291NEAR-FIELD TRANSDUCER WITH RECESSED REGION - A near-field transducer is situated at or proximate an air bearing surface of the apparatus and configured to facilitate heat-assisted magnetic recording on a medium. The near-field transducer includes an enlarged region comprising plasmonic material and having a first end proximate the air bearing surface. The near-field transducer also includes a disk region adjacent the enlarged region and having a first end proximate the air bearing surface. The disk region comprises plasmonic material. A peg region extends from the first end of the disk region and terminates at or proximate the air bearing surface. The near-field transducer further includes a region recessed with respect to the peg region. The recessed region is located between the peg region and the first end of the enlarged region.05-12-2016

Weibin Chen, Edina, MN US

Patent application numberDescriptionPublished
20150147592STORAGE MEDIUM WITH LAYER(S) FOR ENHANCED HEATING - An apparatus that includes a storage layer and a heating assistance element. The heating assistance element is adjacent to the storage layer or doped into the storage layer. The heating assistance element is configured to enhance spatial confinement of energy from a field to an area of the storage layer to which the field is applied.05-28-2015

Xia Chen, Edina, MN US

Patent application numberDescriptionPublished
20100229085SYSTEM AND METHOD FOR YEARBOOK CREATION - A yearbook system is provided. The yearbook system provides a single, extensive resource to plan, create, educate about, sell, and distribute yearbooks. The system further provides an integrated yearbook system management and yearbook production system to enable the production of the yearbook to a printed output. A yearbook server hosts a client site and a client database. The client site is enables the school to plan, create, sell and distribute a yearbook. Further, they system may be used to create the yearbook online. A production server hosts a production database synchronizes with the yearbook server, providing images to the client for use in creating the yearbook, and accepting completed created pages submitted by the school from the yearbook server. The production server translates the created pages into the format to proceed through the regular preparation for production of the yearbook.09-09-2010

Xiangji Chen, Woodbury, MN US

Patent application numberDescriptionPublished
20130261715MEDICAL LEADS - Medical leads, such as medical electrical leads and medical neurological leads, that include a polymeric material that includes a silicone-urethane-containing polymer having improved hydrolytic stability.10-03-2013
20160121101Medical leads - Medical leads, such as medical electrical leads and medical neurological leads, that include a polymeric material that includes a silicone-urethane-containing polymer having improved hydrolytic stability.05-05-2016

Xiaoshu Chen, Minneapolis, MN US

Patent application numberDescriptionPublished
20150044428NANO-GAP ARTICLES AND METHODS OF MANUFACTURE - A method for fabricating articles for use in optics, electronics, and plasmonics includes large scale lithography or other patterning and conformal deposition such as by atomic layer deposition.02-12-2015

Xi C. Chen, Minneapolis, MN US

Patent application numberDescriptionPublished
20150278627UNSUPERVISED FRAMEWORK TO MONITOR LAKE DYNAMICS - A method of reducing processing time when assigning geographic areas to land cover labels using satellite sensor values includes a processor receiving a feature value for each pixel in a time series of frames of satellite sensor values, each frame containing multiple pixels and each frame covering a same geographic location. For each sub-area of the geographic location, the sub-area is assigned to one of at least three land cover labels. The processor determines a fraction function for a first sub-area assigned to a first land cover label. The sub-areas that were assigned to the first land cover label are reassigned to one of the second land cover label and the third land cover label based on the fraction functions of the sub-areas.10-01-2015

Xingfu Chen, Lino Lakes, MN US

Patent application numberDescriptionPublished
20090292326GLASS FEEDTHROUGH ASSEMBLIES FOR IMPLANTABLE MEDICAL DEVICES - A feedthrough assembly of an implantable medical device includes a glass insulator containing at least approximately 20 mol % of calcium oxide (CaO), preferably of a CABAL-12 type composition. The assembly is either manufactured so that the glass insulator includes a surface layer including calcium phosphate, preferably of relatively low solubility, or is assembled in the implantable device so that the glass insulator is exposed to phosphate-containing body fluid, when the device is implanted, for the formation of a surface layer including calcium phosphate.11-26-2009
20140277316MEDICAL LEADS AND TECHNIQUES FOR MANUFACTURING THE SAME - In some examples, the disclosure relates to a medical device comprising a lead including an electrically conductive lead wire; and an electrode electrically coupled to the lead wire, the electrode including a first portion and a second portion, wherein the first portion defines an exposed outer surface of the electrode and is electrically coupled to the second portion along a first interface, wherein the second portion is electrically coupled to the lead wire along a second interface different from the first interface via welding to couple the lead wire to the electrode, wherein an electrical signal may be transferred between the lead wire and exposed outer surface of the first portion via the second portion, and wherein the first portion is formed from a first material having a first composition, and the second portion is formed from a second material having a second composition different from the first composition.09-18-2014

Xingfu Chen, Eden Prairie, MN US

Patent application numberDescriptionPublished
20150258335DISCONTINUOUS CONDUCTIVE FILLER POLYMER-MATRIX COMPOSITES FOR ELECTROMAGNETIC SHIELDING - A medical electrical lead having a conductor assembly covered by an insulating layer, and a shield covering positioned adjacent or proximate to at least a portion of the insulating layer in order to shield the conductor assembly from one or more electromagnetic fields. The shield covering is formed of a polymer-matrix composite. The polymer-matrix composite includes a polymeric resin having discontinuous conductive fillers provided therein. The discontinuous conductive fillers include one or more of nano-sized metal structures and nano-sized non-metallic conductive structures. The nano-sized non-metallic conductive structures can have a coating formed of one or more metals. The nano-sized non-metallic conductive structures can be formed of carbon. In turn, the nano-sized non-metallic conductive structures can include one or more of carbon nanofibers, carbon filaments, carbon nanotubes, and carbon nanoflakes.09-17-2015

Yen-Lane Chen, New Brighton, MN US

Patent application numberDescriptionPublished
20100272773Use of Drug Polymorphs to Achieve Controlled Drug Delivery From a Coated Medical Device - When making a medical device having a drug coating thereon, the drug having a plurality of characteristic morphological forms, the manufacturing process is controlled to produce a predetermined ratio of said morphological forms on the device. The process has application to drug coated balloons.10-28-2010
20110015664Nucleation of Drug Delivery Balloons to Provide Improved Crystal Size and Density - Drug delivery balloons have densely packed crystals of small particle size of the drug thereon. An amorphous drug coating is applied to a balloon surface and annealed to provide the crystals. The balloon surface is nucleated to induce formation of drug crystals in the annealing step to provide the crystals in high density with small size.01-20-2011
20130035483METHODS OF CONVERTING AMORPHOUS DRUG SUBSTANCE INTO CRYSTALLINE FORM - A method for converting an amorphous drug, such as everolimus, or other macrolide immunosuppressive drug, into a crystalline form. The method utilizes a slurry of the drug in organic liquid phase and ages the slurry to achieve the conversion.02-07-2013
20130053947Medical Device with Crystalline Drug Coating - A medical device having a polymer-free outer surface layer comprising a crystalline drug selected from the group consisting of everolimus, tacrolimus, sirolimus, zotarolimus, biolimus, and rapamycin. The device may be produced by a method comprising the steps of providing a medical device; applying a solution of the drug to said portion of the outer surface to form a coating of amorphous drug; and vapor annealing the drug with a solvent vapor to form crystalline drug; wherein a seed layer of a crystalline form of said drug having a maximum particle size of about 10 μm or less is applied to at least said portion of the outer surface of the device before or after applying the drug solution, but before vapor annealing the amorphous coating.02-28-2013
20150018431Lubricious Coating Compositions - In one aspect, the present disclosure pertains to lubricous coating compositions that comprise (a) a higher molecular weight polyvinylpyrrolidone, (b) a lower molecular weight polyvinylpyrrolidone, and (c) a polyfunctional unsaturated crosslinking agent. In some embodiments, such lubricous coating compositions are present in crosslinked form on the surface of a medical article. In some embodiments, the lubricous coating compositions further comprise a solvent, in which case such compositions may be, for example, applied to a substrate in the form of a layer and subsequently crosslinked, thereby forming a lubricious coating on the substrate. In another aspect, the present disclosure is directed to methods for forming various medical articles.01-15-2015
20150182732Drug Eluting Balloon With Preferred Drug Orientation To Improve Drug Transfer Efficiency - A catheter comprises a medical balloon having a drug coating. The drug coating comprises drug crystals on a surface of the balloon. The majority of the drug crystals on the surface of the balloon are oriented drug crystals which extend within 5° of a predetermined, non-zero common angle relative to the surface of the balloon from which the crystals extend.07-02-2015
20150238736SYSTEMS AND METHODS FOR DELIVERING DRUGS TO A TREATMENT SITE - A catheter system includes a catheter having a first balloon and a second balloon. The first balloon is longitudinally offset from the second balloon along the length of the catheter. The first and second balloons both have expanded and unexpanded states. The second balloon has a drug coating. The catheter system has a first configuration, a second configuration, and a third configuration. In the first configuration, the first balloon is in the unexpanded state and the second balloon is in the unexpanded state. In the second configuration, the first balloon is in the expanded state and the second balloon is in the unexpanded state. In the third configuration, the first balloon is in the expanded state and the second balloon is in the expanded state.08-27-2015
20150250772Medical Device with Crystalline Drug Coating - A medical device having a polymer-free outer surface layer comprising a crystalline drug selected from the group consisting of everolimus, tacrolimus, sirolimus, zotarolimus, biolimus, and rapamycin. The device may be produced by a method comprising the steps of providing a medical device; applying a solution of the drug to said portion of the outer surface to form a coating of amorphous drug; and vapor annealing the drug with a solvent vapor to form crystalline drug; wherein a seed layer of a crystalline form of said drug having a maximum particle size of about 10 μm or less is applied to at least said portion of the outer surface of the device before or after applying the drug solution, but before vapor annealing the amorphous coating.09-10-2015
20150351782SYSTEMS AND METHODS FOR TREATING ATHEROSCLEROTIC PLAQUE - A system and method for treating atherosclerotic plaque. The system includes a first catheter including an expandable balloon and a second catheter including a lumen in fluid communication with a distal hole. The method includes inserting the first catheter into a body lumen adjacent to a plaque formation, and deploying a balloon from the first catheter adjacent to the plaque formation. In addition, the method includes inserting the second catheter adjacent to the first catheter, and routing the distal end portion of second catheter along at least a portion of the deployed balloon of the first catheter. Further, the method includes routing at least a portion of the second catheter into a subintimal space adjacent to the atherosclerotic plaque. Furthermore, the method includes injecting a therapeutic agent into the subintimal space adjacent to the atherosclerotic plaque.12-10-2015

Patent applications by Yen-Lane Chen, New Brighton, MN US

Yi-Ching Chen, Maple Grove, MN US

Patent application numberDescriptionPublished
20140250597ADJUSTABLE BED FOUNDATION SYSTEM WITH BUILT-IN SELF-TEST - This disclosure describes built-in self-test techniques for an adjustable bed foundation system. In one example, this disclosure describes a remote controller device for an adjustable bed foundation system, the remote controller device includes a user interface configured to receive input from a user, and a processor configured to initiate, via the user interface, at least one test sequence that tests the remote controller device in response to the received user input, and display, via the user interface, information related to the at least one test sequence.09-11-2014
20140257571SWITCHING MEANS FOR AN ADJUSTABLE FOUNDATION SYSTEM - In one example, this disclosure describes an adjustable bed system that includes first and second adjustable foundations, at least one first motor to adjust the first adjustable foundation, at least one second motor to adjust the second adjustable foundation, a configurable device having a first state and a second state, and a central controller in communication with the device, the controller configured to receive an input representing one of the first state and the second state, the controller including a processor configured to control the at least one first motor and the at least one second motor based on the received input.09-11-2014
20140259418INFLATABLE AIR MATTRESS WITH LIGHT AND VOICE CONTROLS - In one example, this disclosure describes a method including determining, at a central controller of an air mattress system, whether a user is present on a mattress of the air mattress system, initiating a timer in response to determining that the user is present on the mattress, enabling a light control feature of the air mattress system upon determining that the user is present on the mattress after expiration of the timer, and after enabling the light control feature, transmitting, from the central controller, at least one instruction to turn on at least one light of the air mattress system in response to determining that the user is no longer present on the mattress.09-18-2014
20140259419PARTNER SNORE FEATURE FOR ADJUSTABLE BED FOUNDATION - A sleep system comprises at least one mattress including a first sleep area for a first occupant, the first sleep area including a first section for a portion of a body of the first occupant, and a second sleep area adjacent to the first sleep area for a second occupant, the second sleep area including a second section for a portion of a body of the second occupant, an articulation system for articulating the first section and the second section, a first user controller configured to communicate with the articulation system in order to control articulation of the first section, and a second user controller configured to communicate with the articulation system in order to control articulation of the second section, wherein the first user controller is further configured to communicate with the articulation system in order to move the second section into a predetermined position.09-18-2014
20150182033INFLATABLE AIR MATTRESS WITH INTEGRATED CONTROL - An air bed system including a plurality of peripheral devices and a pump unit configured to adjust a firmness of an air mattress, the pump unit including a pump. The system further includes a controller configured to execute instructions that cause the pump unit to wirelessly pair with at least one of the plurality of peripheral devices. The pump unit is configured to receive at least one control signal addressed to the at least one of the plurality of peripheral devices, and transmit the at least one control signal to the addressed device.07-02-2015

Yi-Ching Chen, Minneapolis, MN US

Patent application numberDescriptionPublished
20150157519Partner Snore Feature for Adjustable Bed Foundation - A sleep system comprises at least one mattress including a first sleep area for a first occupant, the first sleep area including a first section for a portion of a body of the first occupant, and a second sleep area adjacent to the first sleep area for a second occupant, the second sleep area including a second section for a portion of a body of the second occupant, an articulation system for articulating the first section and the second section, a first user controller configured to communicate with the articulation system in order to control articulation of the first section, and a second user controller configured to communicate with the articulation system in order to control articulation of the second section, wherein the first user controller is further configured to communicate with the articulation system in order to move the second section into a predetermined position.06-11-2015

Yingjie Chen, Roseville, MN US

Patent application numberDescriptionPublished
20100311756METHODS FOR DELAYING THE PROGRESSION OF AT LEAST ONE OF CARDIAC HYPERTROPHY, CARDIAC REMODELING OR LEFT VENTRICULAR FUNCTION OR THE ONSET OF HEART FAILURE IN SUBJECTS IN NEED OF TREATMENT THEREOF - The present invention relates to methods for reducing the progression of at least one of cardiac hypertrophy, cardiac remodeling or left ventricular dysfunction following a cardiac insult in a subject in need of treatment thereof. Moreover, the present invention also relates to methods of delaying the onset of heart failure symptoms or reducing the incidence of cardiovascular events following a cardiac insult in a subject in need of treatment thereof.12-09-2010

Yiqiao Chen, Eden Prairie, MN US

Patent application numberDescriptionPublished
20110272672Long Wavelength Infrared Superlattice - An embodiment of the present invention improves the fabrication and operational characteristics of a type-II superlattice material. Layers of indium arsenide and gallium antimonide comprise the bulk of the superlattice structure. One or more layers of indium antimonide are added to unit cells of the superlattice to provide a further degree of freedom in the design for adjusting the effective bandgap energy of the superlattice. One or more layers of gallium arsenide are added to unit cells of the superlattice to counterbalance the crystal lattice strain forces introduced by the aforementioned indium antimonide layers.11-10-2011
20130043458Long Wavelength Infrared Superlattice - An embodiment of the present invention improves the fabrication and operational characteristics of a type-II superlattice material. Layers of indium arsenide and gallium antimonide comprise the bulk of the superlattice structure. One or more layers of indium antimonide are added to unit cells of the superlattice to provide a further degree of freedom in the design for adjusting the effective bandgap energy of the superlattice. One or more layers of gallium arsenide antimonide are added to unit cells of the superlattice to counterbalance the crystal lattice strain forces introduced by the aforementioned indium antimonide layers.02-21-2013
20130043459Long Wavelength Infrared Superlattice - An embodiment of the present invention improves the fabrication and operational characteristics of a type-II superlattice material. Layers of indium arsenide and gallium antimonide comprise the bulk of the superlattice structure. One or more layers of indium antimonide are added to unit cells of the superlattice to provide a further degree of freedom in the design for adjusting the effective bandgap energy of the superlattice. One or more layers of gallium arsenide antimonide are added to unit cells of the superlattice to counterbalance the crystal lattice strain forces introduced by the aforementioned indium antimonide layers.02-21-2013

Yiran Chen, Cn, MN US

Patent application numberDescriptionPublished
20110085373SPIN-TRANSFER TORQUE MEMORY SELF-REFERENCE READ METHOD - Self-reference reading a magnetic tunnel junction data cell methods are disclosed. An illustrative method includes applying a read voltage across a magnetic tunnel junction data cell and forming a read current. The magnetic tunnel junction data cell has a first resistance state. The read voltage is sufficient to switch the magnetic tunnel junction data cell resistance. The method includes detecting the read current and determining if the read current remains constant during the applying step. If the read current remains constant during the applying step, then the first resistance state of the magnetic tunnel junction data cell is the resistance state that the read voltage was sufficient to switch the magnetic tunnel junction data cell to.04-14-2011

Yonghua Chen, Eden Prairie, MN US

Patent application numberDescriptionPublished
20090274931HARD MAGNET WITH CAP AND SEED LAYERS AND DATA STORAGE DEVICE READ/WRITE HEAD INCORPORATING THE SAME - A method including forming a multilayer structure. The multilayer structure includes a seed layer comprising a first component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The multilayer structure also includes an intermediate layer comprising the first component and a second component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The second component is different than the first component. The multilayer structure further includes a cap layer comprising the first component. The method further includes heating the multilayer structure to an annealing temperature to cause a phase transformation of the intermediate layer. Also a hard magnet including a seed layer comprising a first component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The hard magnet also includes a cap layer comprising the first component. The hard magnet further includes an intermediate layer between the seed layer and the cap layer. The intermediate layer includes the first component and a second component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The first component is different than the second component. Additionally, a read/write head including the hard magnet.11-05-2009
20110007426TRAPEZOIDAL BACK BIAS AND TRILAYER READER GEOMETRY TO ENHANCE DEVICE PERFORMANCE - A magnetoresistive sensor having a trilayer sensor stack with two ferromagnetic freelayers separated by a nonmagnetic spacer layer is disclosed. The sensor is biased with a back biasing magnet adjacent a back of the trilayer sensor. The back biasing magnet, the trilayer sensor stack, or both have substantially trapezoidal shapes to enhance the biasing field and to minimize noise. In some embodiments, the trilayer sensor or back bias magnet have a shape designed to stabilize a micromagnetic “C” shape or concentrate magnetic flux in the trilayer sensor stack.01-13-2011

Yonghua Chen, Bloomington, MN US

Patent application numberDescriptionPublished
20130209835MULTIPLE LAYER FEPT STRUCTURE - A method involves depositing a seed layer comprising at least A1 phase FePt. A main layer of A1 phase FePt is deposited over the seed layer. The main layer includes FePt of a different stoichiometry than the seed layer. The seed and main layers are annealed to convert the A1 phase FePt to L10 phase FePt. The annealing involves heating the substrate prior to depositing at least part of the A1 phase FePt of the main or seed layers.08-15-2013
20130244192MAGNETIC SENSOR MANUFACTURING - A magnetic sensor comprising a first shield and a second shield and a sensor stack between the first and the second shield, the sensor stack having a plurality of layers wherein at least one layer is annealed using in-situ rapid thermal annealing. In one implementation of the magnetic sensor a seed layer is annealed using in-situ rapid thermal annealing. Alternatively, one of a barrier layer, an AFM layer, and a cap layer is annealed using in-situ rapid thermal annealing.09-19-2013
20140146417Data Writer with Tapered Side Shield Sidewalls - A data writer may be generally configured at least with a write pole that has a pole sidewall and a continuous first taper angle connecting leading and trailing edges. The write pole can be positioned adjacent to a side shield that is configured with first and second shield sidewalls tapered to a shield tip that is the closest point between the write pole and side shield.05-29-2014
20140168818READ SENSOR FOR RECORDING HEAD - Implementations described and claimed herein provide a read sensor structure having a synthetic anti-ferromagnetic (SAF) structure with a pinning that is canted with respect to an air bearing surface (ABS) of the read sensor. In an implementation of the read sensor, the angle between the pinning direction of a reference layer (RL) and the pinning direction of a free layer (FL) is obtuse.06-19-2014
20160064018WRITE HEAD WITH COIL STRUCTURE ALIGNED WITH YOKE - A write head having a main pole having a pole tip proximate an air bearing surface (ABS), the main pole having a leading side and a trailing side. The write head also includes a yoke having a yoke tip recessed from the ABS, and a helical coil wrapped around the main pole and the yoke. The helical coil has a first turn with its front edge at least substantially aligned with the yoke tip.03-03-2016

Patent applications by Yonghua Chen, Bloomington, MN US

Yonghua Chen, Minneapolis, MN US

Patent application numberDescriptionPublished
20100149696MAGNETIC SENSOR INCLUDING AN ELEMENT FOR GENERATING SIGNALS RELATED TO RESISTANCE CHANGES - A magnetic device includes first and second electrodes and a sensor stack connected to the first and second electrodes proximate a sensing surface of the magnetic sensor. A resistive element is connected to the first and second electrodes in parallel or in series with the sensor stack and adjacent the sensing surface. In some embodiments, the resistive element is configured to generate signals related to changes in its resistance. A controller to respond to the resistive element signals can also be included.06-17-2010

Zhizheng Chen, Fort Collins, MN US

Patent application numberDescriptionPublished
20120073009METHOD OF CREATING A SPRING BRASSICA NAPUS - Crossing a winter 03-22-2012
20120216319BRASSICA PLANTS YIELDING OILS WITH A LOW ALPHA LINOLENIC ACID CONTENT - plants producing oils with a low alpha-linolenic acid content and methods for producing such plants are described.08-23-2012
20130081156BRASSICA PLANTS YIELDING OILS WITH A LOW ALPHA LINOLENIC ACID CONTENT - plants producing oils with a low alpha-linolenic acid content and methods for producing such plants are described.03-28-2013
20140304850METHOD OF CREATING A SPRING BRASSICA NAPUS - Crossing a winter 10-09-2014
20150237820METHOD OF CREATING A SPRING BRASSICA NAPUS - Crossing a winter 08-27-2015

Patent applications by Zhizheng Chen, Fort Collins, MN US

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