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Daisuke Yamada

Daisuke Yamada, Yokohama-Shi JP

Patent application numberDescriptionPublished
20100253828REFRACTIVE INDEX DISTRIBUTED OPTICAL ELEMENT AND IMAGE SENSOR INCLUDING THE REFRACTIVE INDEX DISTRIBUTED OPTICAL ELEMENT - A refractive index distributed optical element having a refractive index varying within a plane, including a positive refractive index distributed portion having a positive refractive index varying within the plane and a negative refractive index distributed portion having a negative refractive index varying within the plane. The absolute values of the refractive indexes of the positive refractive index distributed portion and the negative refractive index distributed portion decrease toward a region between the positive refractive index distributed portion and the negative refractive index distributed portion.10-07-2010
20100259668IMAGE SENSOR - An image sensor including an photoelectric conversion portion; a microlens; and a filter layer between the photoelectric conversion portion and the microlens. The filter layer has a convex shape having a center of curvature on a side of the photoelectric conversion portion with respect to the filter layer and includes patterns that are arranged in a one-dimensional or two-dimensional period such that an angle from the center of curvature is fixed.10-14-2010
20110063716METHOD OF MAKING OPTICAL ELEMENT AND OPTICAL ELEMENT - A method of making an optical element, the optical element including magnetic resonators that are anisotropically shaped and smaller than a wavelength of incident light, includes a first step of dispersing the magnetic resonators in a host medium, a second step of applying an external magnetic field to the host medium after the first step, and a third step of curing the host medium after the second step.03-17-2011
20110090384SOLID-STATE IMAGING DEVICE - Provided is a solid-state imaging device capable of reducing occurrence of noise resulting from reflected light to improve light use efficiency in a case where a solid-state imaging device is constructed to have a structure in which incident light passing through a substrate is reflected toward a photoelectric conversion unit. The solid-state imaging device includes: a photoelectric conversion unit formed in an inner portion of a substrate; a condensing unit provided on a side of the substrate which incident light enters, for condensing the incident light to the photoelectric conversion unit; and a reflecting unit provided on a side of the substrate which is opposed to the condensing unit, the reflecting unit being concave to the substrate, in which the reflecting unit has a structure for substantially aligning a same magnification imaging position of the reflecting unit with a focusing position of the condensing unit.04-21-2011
20110156991DISPLAY UNIT - A display unit has an interlayer formed at least as one or more than one layers and arranged between a light-emitting layer and a diffractive element. The interlayer has a thickness not less than 500 nm and not more than 2,000 nm and an average refractive index greater than a refractive index of the light-emitting layer. The optical path length of the interlayer defined as a product of multiplication of its average refractive index by its thickness satisfies the requirement shown below:06-30-2011
20120032585LIGHT EMITTING ELEMENT - Provided is a light emitting element capable of reducing external light reflectance while maintaining high light extraction efficiency, having a structure including a back surface member provided on a side of an emission layer opposite to a light extraction side, the back surface member including in order from the emission side: a dielectric layer having a smaller effective refractive index than that of the emission layer; and a metal fine patterned layer interacting with light entering a metal fine patterned layer to change level of reflectance, and back surface member reflectance with respect to light with an incident angle larger than the critical angle determined by conditions for total reflection at an interface between the emission and the dielectric layer is higher than back surface member reflectance with respect to light with an incident angle smaller than the critical angle.02-09-2012
20120120288SOLID STATE IMAGE SENSOR - A solid state image sensor includes an extracting unit including a plurality of pixels, each having an optical waveguide formed by a core and a clad for guiding incident light entering the pixel to a photoelectric converter section via the core. The extracting unit is formed by at least two pixels including a first pixel and a second pixel and the cores in the optical waveguides of the first and second pixels are designed to show an oblate cross section and arranged with their respective major axes disposed in different directions.05-17-2012
20120133809SOLID STATE IMAGE SENSOR - A solid state image sensor has a plurality of ranging pixels on the imaging area thereof and each of the ranging pixels has a photoelectric conversion section and an optical waveguide arranged at the light-receiving side of the photoelectric conversion section. The optical waveguide has at least two optical waveguides including a first optical waveguide arranged at the light-receiving side and a second optical waveguide arranged at the side of the photoelectric conversion section in the direction of propagation of light. The core region of the first optical waveguide shows a refractive index lower than the refractive index of the core region of the second optical waveguide and is designed so as to show a high light-receiving sensitivity relative to light entering at a specific angle.05-31-2012
20120182202METAMATERIAL - A metamaterial comprising a plurality of unit lattices which are arrayed on a plane in a two dimensional manner and are laminated, wherein a dielectric layer is formed from a first dielectric section and a second dielectric section that is present on the same plane as the first dielectric section and has a smaller refractive index than that of the first dielectric section, wherein the first dielectric section is arranged on an upper side or a lower side of the metal cross layer forming the unit lattice including at least a portion of the crossing region, and wherein the second dielectric section is arranged on an upper side or a lower side of the metal cross layer forming the unit lattice including at least a portion of the non-crossing region.07-19-2012
20140168487SOLID STATE IMAGE SENSOR - A solid state image sensor has a plurality of ranging pixels on the imaging area thereof and each of the ranging pixels has a photoelectric conversion section and an optical waveguide arranged at the light-receiving side of the photoelectric conversion section. The optical waveguide has at least two optical waveguides including a first optical waveguide arranged at the light-receiving side and a second optical waveguide arranged at the side of the photoelectric conversion section in the direction of propagation of light. The core region of the first optical waveguide shows a refractive index lower than the refractive index of the core region of the second optical waveguide and is designed so as to show a high light-receiving sensitivity relative to light entering at a specific angle.06-19-2014

Patent applications by Daisuke Yamada, Yokohama-Shi JP

Daisuke Yamada, Saitama-Shi JP

Patent application numberDescriptionPublished
20100289161MANUFACTURING METHOD AND MANUFACTURING APPARATUS OF SHAPED ARTICLE - There is provided a method of manufacturing a shaped article having a plurality of lens sections arranged one-dimensionally or two-dimensionally and a substrate section connecting the lens sections, the lens sections and the substrate section being integrally made of a resin material. The resin material is cured between a transfer surface of a first mold, which is fit to one side surface of the shaped article, and a transfer surface of a second mold which is fit to an opposite side surface of the shaped article. A space between the transfer surface of the first mold and the transfer surface of the second mold is narrowed in accordance with contraction of the resin material caused by the curing, and the transfer surface of the first mold and the transfer surface of the second mold are kept in tight contact with the resin material.11-18-2010
20100290123WAFER LEVEL LENS ARRAY AND MANUFACTURING METHOD THEREFOR - Provided is a wafer level lens array, in which a plurality of lens sections arranged one-dimensionally or two-dimensionally and a substrate section connecting the lens sections are integrally made of a resin material, capable of preventing the substrate section from being deformed. A wafer level lens array includes: a plurality of lens sections that are two-dimensionally arranged; a substrate section that connects the lens sections to each other; and a rib that is disposed on the substrate section and extends along the surface of the substrate section. The lens sections, the substrate section, and the rib are integrally made of a resin material.11-18-2010
20110063487WAFER-LEVEL LENS ARRAY, METHOD OF MANUFACTURING WAFER-LEVEL LENS ARRAY, LENS MODULE AND IMAGING UNIT - Disclosed are a wafer-level lens array, a method of manufacturing a wafer-level lens array, a lens module, and an imaging unit that can prevent the influence of, for example, the shrinkage of a forming material, prevent the positional deviation between lenses when the wafer-level lens arrays overlap each other or when the wafer-level lens array overlaps an imaging element array, and be easily designed.03-17-2011
20110063731WAFER-LEVEL LENS ARRAY, METHOD OF MANUFACTURING WAFER-LEVEL LENS ARRAY, LENS MODULE AND IMAGING UNIT - Disclosed are a wafer-level lens array, a method of manufacturing a wafer-level lens array, a lens module, and an imaging unit capable of preventing the permeation of air into a substrate unit or a lens unit to be molded when a wafer-level lens array having the substrate unit and the lens units integrated with each other is molded. There is provided a method of integrally manufacturing a wafer-level lens array including a substrate unit and a plurality of lens units arranged on the substrate unit using a transfer mold having a plurality of concave portions corresponding to at least the plurality of lens units provided in a surface thereof. The method includes: supplying a resin to each concave portion, the amount of resin supplied being more than the volume of the concave portion; and performing molding to integrate the resin overflowing from the concave portions, thereby forming the substrate unit.03-17-2011
20110211102LENS ARRAY - A lens array includes: a substrate in which a plurality of through holes are formed; and a plurality of lenses provided in the substrate by filling the plurality of through holes respectively. A protrusion portion that is opaque to an incident light is provided in the through hole as an aperture, which cuts off a light incident on parts except an opening portion. And, the protrusion portion extends from an inner wall of the through hole toward an optical axis of the lens in one planar surface, which is perpendicular to the optical axis of the lens buried in the through hole, to constitute the opening portion around the optical axis.09-01-2011
20110211105LENS ARRAY - A lens array includes: a substrate in which a plurality of through holes are formed; and a plurality of lenses provided in the substrate by burying the plurality of through holes. A part of the through hole is different in at least one of sectional shape and opening area of the through hole, which are taken in parallel with a surface of the substrate, from another part of the through hole in a depth direction.09-01-2011

Daisuke Yamada, Nagoya-Shi JP

Patent application numberDescriptionPublished
20110033052WIRELESS COMMUNICATION DEVICE, WIRELESS COMMUNICATION SYSTEM, AND NETWORK DEVICE - The wireless communication system 02-10-2011
20110235502COMMUNICATION RELAY DEVICE, COMMUNICATION RELAY METHOD, AND STORAGE MEDIUM HAVING COMMUNICATION RELAY PROGRAM STORED THEREIN - A relay device performing wireless communication with a wireless communication device to relay communication between the wireless communication device and another communication device. First and second relay modes of the relay device each include a set of communication parameters for relaying communication via respective first and second communication paths. The relay device includes a communication failure determination section for determining, whether there is a communication failure in the first communication path, and a relay mode controlling section for enabling the first relay mode and disenabling the second relay mode when there is no communication failure in the first communication path, and disenabling the first relay mode and enabling the second relay mode when there is a communication failure in the first communication path. A communication control section controls communication based on either the first relay mode or the second relay mode that is enabled by the relay mode controlling section.09-29-2011
20110243058COMMUNICATION RELAY DEVICE AND COMMUNICATION RELAY METHOD - Connection determination methods are applied to determine whether relay of communication between one or more wireless communication devices and a wireless communication device which is different from the communication devices is permissible, and when a positive determination result is obtained by applying at least one of the methods, the relay is permitted by applying at least one of the methods. When the relay of communication is permitted by the permissible connection determination, the relay is executed.10-06-2011
20110280175WIRELESS RELAY DEVICE - A switch switches between an external connection state where a port functions as an external-network-side port, and an internal connection state where the port functions as an internal-network-side port. A transfer process section transfers, when the switch is in the external connection state, a packet between a station belonging to a wirelessly connected internal network and a modem wiredly connected to the port, and otherwise transfers, when the switch is in the internal connection state, a packet between a station wiredly connected to the port and a network device belonging to a wirelessly connected external network.11-17-2011
20110283122WIRELESS COMMUNICATION DEVICE AND METHOD FOR CONTROLLING WIRELESS COMMUNICATION DEVICE - The wireless communication device includes a main body, and an accessory device connectable to the main body. The accessory device includes a power supply interface configured to supply power to the main body when the accessory device is connected to the main body. The main body includes a wireless communication interface and a secondary battery. A determination section determines whether a predetermined condition in which the main body is connected to and supplied with power from the accessory device, is satisfied. A wireless output power level determination section determines a low power level value to be used as a wireless output power level of the wireless communication interface. A wireless output control section sets the wireless output power level to a predetermined standard power level value when the predetermined condition is satisfied, and to the low power level value when the predetermined condition is not satisfied.11-17-2011
20110283132COMMUNICATION DEVICE AND COMMUNICATION DEVICE CONTROL METHOD - Provided is a communication device for utilization in a communication network. The communication device includes a communication process section for controlling communications in the communication network, a battery for supplying power to the communication process section, a battery control section for controlling supplying of power to the battery, a sub-board temperature detection section for detecting temperature of a battery housing section, and a temperature control section for, (A) when charging of the battery is underway and the temperature detected by the sub-board temperature detection section is outside a predetermined first charging-temperature range, controlling the battery control section to halt the charging of the battery, and, (B) when supplying of power from the battery to the communication process section is underway and the temperature detected by the sub-board temperature detection section is outside a predetermined first discharging-temperature range, halting the supplying of power from the battery to the communication process section.11-17-2011
20120005553TRANSMITTING APPARATUS AND TRANSMISSION METHOD - A transmitting apparatus for transmitting user data, includes: an establishing section that establishes three or more transmission paths for a receiving apparatus; a first generation section that generates a user data unit which includes user data to be transmitted to the receiving apparatus; and a second generation section that generates an error correction data unit which includes error correction data to be used for error correction of the user data to be transmitted to the receiving apparatus. At least one of the three or more transmission paths transmits the error correction data unit, and at least two of the three or more transmission paths transmits the user data unit.01-05-2012
20120099572COMMUNICATION DEVICE, COMPUTER PROGRAM PRODUCT, AND METHOD OF CONTROLLING OPERATION OF COMMUNICATION DEVICE - A mobile communication device includes a mobile communication interface that can perform data communication through a mobile communication network and a wireless LAN interface that can selectably operates as a station or an access point to perform wireless communication. A mobile communication device can perform control in a station mode of causing the wireless LAN interface to operate as a station and control in an access-point mode of relaying communication packets through the mobile communication interface and the wireless LAN interface so the wireless LAN interface operates as an access point. The mobile communication device autonomously switches an operation mode between the station mode and the access-point mode in accordance with a communication environment.04-26-2012
20120129464RADIO COMMUNICATION SYSTEM, ACCESS POINT AND RADIO COMMUNICATION METHOD - A radio communication system including a radio terminal capable of establishing a plurality of transmission paths, includes: a selecting unit for selecting transmission paths to be used for transmitting user data from among a plurality of transmission paths; and an establishing unit for establishing the transmission paths selected by the selecting unit, wherein the selecting unit selects the transmission paths to be used for transmitting the user data based on quality information required for transmitting the user data.05-24-2012
20120134308PORTABLE DEVICE AND METHOD, COMPUTER PROGRAM PRODUCT AND COMPUTER READABLE RECORDING MEDIUM FOR SETTING OPERATION MODE FOR PACKET TRANSFER - A portable device configured to be connected to a router via a wireless or wired connection. The portable device includes a first processing section that operates in each of a first operation mode to serve as a bridge functional part and a second operation mode to serve as a router functional part. The first processing section operates in the first operation mode when the portable device is connected to the router.05-31-2012
20120245797STEERING APPARATUS, STEERING METHOD, AND COMPUTER READABLE STORAGE MEDIUM - A target value for yaw angle velocity gain is computed according to a map expressing a relationship between steering wheel angle and yaw angle velocity gain predetermined such that a direction as seen from a driver of a target destination point for vehicle travel at a predetermined time after a forward gaze and a direction as seen from the driver are caused to match each other, and a steering gear ratio is controlled accordingly. A target value for a steering wheel torque corresponding to the detected steering wheel angle and the acquired yaw angular velocity is set, based on a relationship between yaw angular velocity and resistance-feel level predetermined such that the resistance feel level for a driver monotonically increases with increasing yaw angular velocity. Control is then preformed so as to realize the steering wheel torque target value.09-27-2012
20120307659NETWORK SYSTEM, GATEWAY DEVICE AND METHOD OF DETERMINING A FORWARDING PATH - A network system for forwarding a packet includes a portable network connection device that includes a first communication controller and is connectable with a client. A gateway device is included that has a second communication controller and performs routing. The portable network connection device and the gateway device are connected by a first network including a tunnel path. When the portable network connection device and the gateway device are connected by a second network that does not include the tunnel path, the second communication controller communicates with the first communication controller via the second network. When the portable network connection device and the gateway device are not connected by the second network, the second communication controller communicates with the first communication controller via the first network.12-06-2012
20120307727Portable Network Connection Device, Method of Setting Portable Network Connection Device, And Computer Program Product - A portable network connection device that functions as a bridge in a first operation mode and as a router in a second operation mode. The portable network connection device configured to receive a notice packet indicating a presence of a router, and set an operation mode of the portable network connection device to the first operation mode or the second operation mode based on the whether a notice packet is received.12-06-2012
20120309371Network Connection Device, Method Of Setting An Operation Mode, And Computer Program Product - A network connection device that identifies a position of the network connection device and acquires position-related information related to the identified position; sets one operation mode among a plurality of operation modes respectively having different network connecting functions as an operation mode of the network connection device based on the acquired position-related information; and executes wireless data communication in the set operation mode.12-06-2012
20120311184IP Address Assignment System, Dynamic Host Configuration Protocol Server, And Method Of Assigning An IP Address - A DHCP server assigning an IP address to a client. The DHCP server stores an exclusive address range corresponding to a range of IP addresses assignable to the client, assigns an IP address to the client with a lease period when a request for assignment of new IP address is received from the client, and sends a permission for extension to the client, irrespective of whether an assigned IP address is included in the exclusive address range, as long as the assigned IP address is included in the entire network address range, when a request for extension of the lease period with regard to the assigned IP address is received from the client.12-06-2012
20130107736PORTABLE NETWORK COMMUNICATION DEVICE, METHOD OF SELECTING ACTIVE NETWORK INTERFACE AND COMPUTER READABLE STORAGE MEDIUM05-02-2013
20130107794NETWORK COMMUNICATION DEVICE AND METHOD OF SELECTING ACTIVE NETWORK INTERFACE05-02-2013
20130226411VEHICLE CONTROL SYSTEM, STEERING SIMULATING SYSTEM, STEERING TORQUE APPLICATION METHOD, AND STORAGE MEDIUM THAT STORES PROGRAM FOR STEERING TORQUE APPLICATION METHOD - A steering angle sensor and a steering velocity detection unit respectively detect a steering angle of a steering wheel and a steering velocity of the steering wheel through driver's steering operation. A target torque setting unit, when the steering wheel is being steered from a neutral state of the steering wheel without changing a steering direction, sets a steering torque corresponding to the detected steering angle and the detected steering velocity as a target steering torque on the basis of a correspondence correlation at the detected steering velocity between a steering angle and a steering torque. An assist control unit executes control such that the set target steering torque is achieved.08-29-2013
20130251151WIRELESS COMMUNICATION DEVICE, WIRELESS COMMUNICATION SYSTEM, AND NETWORK DEVICE - The wireless communication system 09-26-2013
20140286249WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION CHANNEL SELECTING METHOD - A wireless communication device that obtains a current degree of interference at each of a plurality of available channels; determines whether a wireless communication is susceptible to interference based on whether a condition corresponding to implementation of the wireless communication is satisfied; and sets a channel for the wireless communication among the plurality of available channels based on the current degree of interference at each of the plurality of available channels when it is determined that the wireless communication is susceptible to interference09-25-2014
20140286253INFORMATION PROCESSING APPARATUS AND METHOD - A channel for which connection has been established is classified into an unavailable channel or an available channel. When there are a plurality of available channels, one or more channels among the plurality of available channels is selected as a channel for which connection is to be maintained for communication.09-25-2014
20140287790COMMUNICATION SYSTEM AND RADIO WAVE MONITORING APPARATUS - A radio wave monitoring apparatus that communicates with a wireless communication device which is separately provided from the radio wave monitoring apparatus and is configured to perform wireless communication via a channel selected from a plurality of channels; detects a specific radio wave at the plurality of channels; selects a channel for the wireless communication in response to a request from the wireless communication device and based on a result of the detecting; and sends channel information indicating the selected channel to the wireless communication device.09-25-2014

Patent applications by Daisuke Yamada, Nagoya-Shi JP

Daisuke Yamada, Tokyo JP

Patent application numberDescriptionPublished
20110017183TWO-STROKE INTERNAL COMBUSTION ENGINE - There is provided a reverse scavenged two-stroke internal combustion engine that is capable of effectively suppressing the short-circuiting of fresh charge (unburnt air-fuel mixture), while at the same time being capable of further improving scavenging efficiency, combustion efficiency, etc. The horizontal sectional shape of at least one pair of scavenging passages (01-27-2011
20120024276LOOP SCAVENGED TWO-STROKE INTERNAL COMBUSTION ENGINE - A loop scavenged two-stroke internal combustion engine which can effectively restrain blow-by of fresh gas with a relatively simple configuration is provided. A horizontal scavenging angle θb in at least one spot of a scavenging passage 02-02-2012
20140121276METHOD FOR ALLEVIATING FEAR MEMORY - The present invention provides new methods of intervention for anxiety associated disorders, in particular, trauma-derived disorders such as PTSD, and therapeutic or prophylactic agents for anxiety associated disorders that can be used as foods, beverages, and dietary supplements, for example, and which contain as an active ingredient n-3 polyunsaturated fatty acids contained in krill oil or fish oil, for example. The present invention further provides methods for alleviating fear memory or methods for preventing its formation by adjusting the proportion of n-3 polyunsaturated fatty acids to n-6 polyunsaturated fatty acids as ingested.05-01-2014
20140291944SUSPENSION DEVICE - A suspension device has longitudinal force compliance steer properties to steer a rear wheel to toe-in or toe-out according to increase in longitudinal force applied to wheel treads of a rear wheel. The suspension device includes: a hub bearing housing; suspension links having both edges pivotally attached to a vehicle body and a hub bearing respectively, to support the hub bearing housing; a suspension spring generating reaction force corresponding to relative displacement amount in the longitudinal direction of the hub bearing housing as to the vehicle body; a damper generating damping force corresponding to relative speed in the longitudinal direction of the hub bearing housing as to the vehicle body; and a toe change generating unit generating toe change in a direction where toe change due to longitudinal force compliance properties is temporarily cancelled out or suppressed at an early stage of turning of the vehicle.10-02-2014
20150086120IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD AND RECORDING MEDIUM - In an image processing apparatus, an image acquiring section acquires one or more images. An image analysis information acquiring section acquires image analysis information on each of the one or more images. A theme determining section determines a main theme representing a theme of each group of images related to each other among the one or more images and a subtheme representing a theme of each of the one or more images based on information on photography tendencies of images associated with each of one or more themes and the image analysis information on each of the one or more images. A theme information output section outputs information on the main theme and information on the subtheme.03-26-2015
20150131925IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM - The image processing apparatus includes a candidate image acquisition unit acquiring candidate images for use in creating a composite image, a processed image determination unit determining about whether candidate images are unprocessed original images or processed images, an image count determination unit determining about whether or not the number of original images included in the candidate images is equal to or greater than a threshold value set in advance based on the determination result by the processed image determination unit, and a use image determination unit which determines when the number of original images is equal to or greater than the threshold value, only the original images are used in creating the composite image and determines when the number of original images is less than the threshold value, the original images and the processed images are used in creating the composite image or stops the creation of the composite image.05-14-2015
20150136548BRAKING DEVICE - A braking device capable of generating a larger braking force is provided. The present invention provides a braking device including a housing 05-21-2015
20150144442BRAKING DEVICE - A braking device capable of effectively causing a shearing stress of a magnetorheological fluid to act on both surfaces of the rotation body is provided. The present invention provides a braking device including a first soft magnetic material 05-28-2015
20150161491IMAGE USED COMMERCIAL GOODS CREATING APPARATUS, IMAGE USED COMMERCIAL GOODS CREATING METHOD, AND NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM - To provide an image used commercial goods creating apparatus and an image used commercial goods creating method that automatically create desired image used commercial goods using a processed image which a user has strong feelings about.06-11-2015
20150272918METHOD FOR ALLEVIATING FEAR MEMORY - The present invention provides new methods of intervention for anxiety associated disorders, in particular, trauma-derived disorders such as PTSD, and therapeutic or prophylactic agents for anxiety associated disorders that can be used as foods, beverages, and dietary supplements, for example, and which contain as an active ingredient n-3 polyunsaturated fatty acids contained in krill oil or fish oil, for example. The present invention further provides methods for alleviating fear memory or methods for preventing its formation by adjusting the proportion of n-3 polyunsaturated fatty acids to n-6 polyunsaturated fatty acids as ingested.10-01-2015

Patent applications by Daisuke Yamada, Tokyo JP

Daisuke Yamada, Nagoya JP

Patent application numberDescriptionPublished
20100290414WIRELESS COMMUNICATION DEVICE, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD - When radar/radio signals are detected by one of two access points establishing communication in a WDS mode, the one access point notifies the other access point of a change of a communication channel to a newly allocated channel and actually changes the communication channel to the newly allocated channel. The other access point notified of the newly allocated channel performs a passive scan at the notified newly allocated channel to detect a beacon broadcasted by the one access point. In response to detection of the beacon, the other access point resets the communication channel to the notified newly allocated channel. The two access points can accordingly reestablish communication in the WDS mode within a short time period. This arrangement allows for a quick channel change in response to detection of radar/radio signals, such as a weather radar, during communication of a 5 GHz frequency band in the WDS mode.11-18-2010
20100299725WIRELESS LAN ACCESS POINT DEVICE AND UNAUTHORIZED MANAGEMENT FRAME DETECTION METHOD - A wireless LAN access point device is structured to perform frame-based data transmission and reception to and from a wireless terminal over a wireless communication path. The wireless LAN access point device has a communication module configured to transmit and receive a frame to and from the wireless terminal. In the wireless LAN access point device, when the communication module receives a predetermined management frame from the wireless terminal, an execution module performs a corresponding operation specified by the received management frame. In the wireless LAN access point device, when the communication module receives a frame, a sequence monitor module obtains a sequence number included in the frame. In the wireless LAN access point device, when a first sequence number obtained by the sequence monitor module and a second sequence number included in the received management frame satisfy a preset condition, an unauthorized frame judgment module identifies the received management frame as an unauthorized frame. This arrangement has the high versatility and effectively protects a wireless LAN network from unauthorized accesses.11-25-2010
20110268009RELAY APPARATUS, COMMUNICATION APPARATUS, COMMUNICATION SYSTEM, AND RELAY METHOD - Disclosed is a relay apparatus for forwarding a received multicast frame to a communication apparatus at a specified communication rate. The relay apparatus converts the received multicast frame to the corresponding unicast frame, sets a relatively higher communication rate than the specified communication rate, and forwards the converted unicast frame to the communication apparatus at the relatively higher communication rate. The relay apparatus determines whether or not the availability of the converted and forwarded unicast frame by an application is ascertained based on a condition, and prohibits conversion to the unicast frame when the availability is negated. This configuration enhances the user's convenience in the relay technique of converting multicast frames to unicast frames and forwarding the converted unicast frames.11-03-2011
20110268010RELAY APPARATUS, COMMUNICATION APPARATUS, COMMUNICATION SYSTEM, AND FRAME TRANSFER METHOD - A relay apparatus converts a received multicast frame to a unicast frame, sets a relatively higher communication rate than a specified communication rate, and forwards the converted unicast frame to a communication apparatus at the relatively higher communication rate. The relay apparatus attaches conversion information, which represents execution of the conversion, to the unicast frame. On reception of a unicast frame from the relay apparatus, the communication apparatus determines whether the received unicast frame is the converted unicast frame from the multicast frame, based on the conversion information attached by the relay apparatus. Upon determination that the received unicast frame is the converted unicast frame, the communication apparatus reconverts the received unicast frame to a multicast frame and transfers the reconverted multicast frame to an application installed in the communication apparatus to utilize a multicast frame. This arrangement enables the communication apparatus to effectively utilize a received unicast frame that is a converted unicast frame from a multicast frame.11-03-2011

Daisuke Yamada, Aichi JP

Patent application numberDescriptionPublished
20100108424VEHICLE SAFETY DEVICE - A safety device for a vehicle, capable of relaxing a collision load acting on a colliding body. The safety device (05-06-2010

Daisuke Yamada, Yokohama JP

Patent application numberDescriptionPublished
20100108526ELECTROCHEMICAL ANALYSIS METHOD USING BORON-DOPED ELECTROCONDUCTIVE DIAMOND ELECTRODE - This invention provides an electrochemical analysis method for accurately detecting a harmful substance such as arsenic contained in a solution. In the electrochemical analysis method, a working electrode and a counter electrode are disposed in an object electrolytic solution. A negative potential is applied to the working electrode to electrodeposit the electrolyte onto the surface of the working electrode and thus to form an electrodeposit. Next, the potential of the working electrode is sweeped in a positive potential direction to allow the electrodeposit to elute into the solution and, at the same time, to detect a current change upon a potential change and thus to analyze an object substance dissolved as an electrolyte in the object electrolytic solution. A boron-doped electroconductive diamond electrode or an electrode with gold deposited on its surface is used as the working electrode.05-06-2010

Daisuke Yamada, Osaka JP

Patent application numberDescriptionPublished
20090202643Oil-in-water emulsions containing lignan-class compounds and compositions containing the same - An object of the present invention is to increase the rate at which lignan-class compounds are absorbed into the body, namely, to provide fast-acting lignan-class compounds.08-13-2009
20090324779METHOD FOR PROCESSING SPROUTED CEREAL, MALT PRODUCT, FERMENTED MALT DRINK, AND FOOD AND DRINK - A method for processing a sprouted cereal in which an enzymatic activity in the sprouted cereal is reduced by bringing the sprouted cereal into contact with water vapor.12-31-2009

Daisuke Yamada, Saitama JP

Patent application numberDescriptionPublished
20080311769Anistropic Conductive Connector, Conversion Adapter for Inspection Device Having the Anisotropic Conductive Connector, and Method for Manufacturing the Anistropic Conductive Connector - The anisotropically conductive connector 12-18-2008
20090039906CIRCUIT BOARD APPARATUS FOR WAFER INSPECTION, PROBE CARD, AND WAFER INSPECTION APPARATUS - Disclosed herein are a circuit board device for wafer inspection having high connection reliability, and a probe card and a wafer inspection apparatus, which are equipped with this circuit board device for wafer inspection. The circuit board device for wafer inspection has a board body and a connector device provided on the board body and obtained by stacking a plurality of connector units on each other, wherein each of the connector units has a first anisotropically conductive elastomer sheet, a composite conductive sheet, a second anisotropically conductive elastomer sheet and a pitch converting board, the composite conductive sheet has an insulating sheet, in which a plurality of through-holes have been formed, and rigid conductors respectively arranged into the through-holes in this insulating sheet so as to protrude from both surfaces of the insulating sheet, and in each of the rigid conductors, terminal portions having a diameter greater than the diameter of the through-hole are formed on both ends of a body portion inserted into the through-hole in the insulating sheet in order for the conductor to be provided movably in the thickness-wise direction of the insulating sheet.02-12-2009
20090072844WAFER INSPECTING SHEET-LIKE PROBE AND APPLICATION THEREOF - Disclosed herein are a sheet-like probe for wafer inspection, by which a good electrically connected state to a wafer can be surely achieved even when the pitch of electrodes to be inspected in the wafer is extremely small, and applications thereof.03-19-2009
20090159325ANISOTROPICALLY CONDUCTIVE CONNECTOR AND ANISOTROPICALLY CONDUCTIVE CONNECTOR DEVICE - An anisotropically conductive connector and an anisotropically conductive connector device. The anisotropically conductive connector includes a supporting member, a plurality of through-holes each extending in a thickness-wise direction of the supporting member, and anisotropically conductive sheets respectively held in the through-holes of the supporting member. Each anisotropically conductive sheet includes a frame plate, a plurality of through-holes each extending in a thickness-wise direction of the frame plate, and a plurality of anisotropically conductive elements arranged in the respective through-holes of the frame plate. Each of the anisotropically conductive elements includes a conductive part, conductive particles contained in an elastic polymeric substance in a state oriented so as to align in a thickness-wise direction of the element, and an insulating part to cover the outer periphery of the conductive part and including an elastic polymeric substance.06-25-2009

Patent applications by Daisuke Yamada, Saitama JP

Daisuke Yamada, Kanagawa JP

Patent application numberDescriptionPublished
20090175377DIGITAL SIGNAL TRANSMITTING APPARATUS - A digital signal transmitting apparatus that prevents occurrences of highness and lowness in error tolerance due to bit positions without raising the redundancy and without retransmittal. In the digital signal transmitting apparatus, a bit interchanging part (07-09-2009

Daisuke Yamada, Nagakute-Cho JP

Patent application numberDescriptionPublished
20080251312Vehicle Steering Apparatus - In a vehicle steering apparatus of a steer-by-wire system, front wheels are controlled to be turned by a computer program processing. A displacement/torque conversion section 10-16-2008

Daisuke Yamada, Yokosuka-Shi JP

Patent application numberDescriptionPublished
20120258638CONNECTOR AND CONNECTOR SET - A connector etc. that prevents wrong insertion and does not require large rotation of plug etc., when inserting a plug to a socket, is provided. Plug-in connector 10-11-2012

Daisuke Yamada, Hiroshima JP

Patent application numberDescriptionPublished
20130020825REAR BAGGAGE-COMPARTMENT STRUCTURE OF VEHICLE - A winding device is provided behind a rearmost-row seat and extends in a vehicle width direction to wind up a tonneau cover member. The tonneau cover member comprises a cover body portion and a board portion connected to a rear end of the cover body portion and has its rear end portion capable of engaging with an engaged portion of a lift gate. The lift gate further includes a pair of restraint portions at a specified position of both end portions of the inner face thereof which is located above the engaged portion, which is operative to restrain the cover body portion from moving upward when the lift gate is fully open and the tonneau cover member engages with the lift gate through a contact thereof with the board portion to stop further upward moving of the board portion.01-24-2013

Daisuke Yamada, Daito-Shi JP

Patent application numberDescriptionPublished
20150042620DISPLAY DEVICE - A display device includes a detecting unit detecting an object in space in a direction of video output and deducing space information of the object, an operating surface setting unit using an operating surface setting object in the space in the direction of video output to create a virtual operating surface corresponding to a screen of the display unit, an input screen processing unit generating an image signal to draw on the screen a detection point indicating the position of a finger constituting the object, and an input point determining unit identifying that the finger within the frame of the operating surface moved from the operator side toward the display unit and reached the operating surface and using the detection point regarding the arrival position of the finger that arrived at the operating surface to determine an input point indicating that a single point on the operating surface was selected.02-12-2015

Daisuke Yamada, Cambridge, MA US

Patent application numberDescriptionPublished
20130128085SOLID-STATE IMAGE PICKUP ELEMENT, DISTANCE DETECTING APPARATUS INCLUDING SOLID-STATE IMAGE PICKUP ELEMENT, AND CAMERA INCLUDING DISTANCE DETECTING APPARATUS - A solid-state image pickup element includes a pixel and a signal detecting unit. The pixel has at least two photoelectric conversion units including a first photoelectric conversion unit and a second photoelectric conversion unit in a semiconductor. The first photoelectric conversion unit has a higher impurity density than the second photoelectric conversion unit and is configured to allow the transfer of a charge occurring in the second photoelectric conversion unit to the first photoelectric conversion unit. The signal detecting unit commonly detects the charge amount in the first photoelectric conversion unit and the second photoelectric conversion unit.05-23-2013
20130222576DISTANCE MEASUREMENT APPARATUS, DISTANCE MEASUREMENT METHOD, AND CAMERA - A distance measurement apparatus includes an imaging lens configured to form an image of an object on an imaging plane, a solid-state image sensor configured to acquire an image based on light flux passing through a plurality of areas different from each other in an exit pupil of the imaging lens, and a calculation unit configured to calculate a distance based on a signal acquired from the solid-state image sensor. The calculation unit includes a processing unit configured to acquire a first signal in a first imaging condition by using the solid-state image sensor, a processing unit configured to acquire a second signal in a second imaging condition different from the first imaging condition by using the solid-state image sensor, and a processing unit configured to calculate a base length and a distance based on the first signal and the second signal.08-29-2013
20130258097SOLID-STATE IMAGE SENSOR, DISTANCE MEASUREMENT APPARATUS INCLUDING THE SOLID-STATE IMAGE SENSOR, AND CAMERA - A solid-state image sensor including a plurality of pixels each including a photoelectric conversion element formed on a semiconductor. The solid-state image sensor includes a distance measurement pixel including a plurality of photoelectric conversion elements configured to acquire signals for distance measurement and included in at least a part of the plurality of pixels, and a control electrode disposed on the semiconductor via an insulating film, wherein the control electrode is configured to control positions or shapes of the photoelectric conversion elements by applied voltages, while the distance measurement pixel maintains the number of the plurality of photoelectric conversion elements.10-03-2013
20140139817SOLID-STATE IMAGE SENSOR AND RANGE FINDER USING THE SAME - The invention provides a solid-state image sensor including a plurality of pixels, at least one pixel of the plurality of the pixels having a plurality of photoelectric conversion portions and a pupil-dividing member that causes light that passes through an exit pupil and is incident on a region defined by the member itself to be incident on the plurality of the photoelectric conversion portions, wherein potential profiles with respect to electric charge of the plurality of the photoelectric conversion portions change in a perpendicular line direction of the substrate, and wherein a distance between potential centroids in a section perpendicular to the perpendicular line of the plurality of the photoelectric conversion portions is longer on a back side that is a side opposite to a light incidence side than on the light incidence side.05-22-2014

Daisuke Yamada, Kawasaki-Shi JP

Patent application numberDescriptionPublished
20160031653CONVEYING CONTROLLING APPARATUS, CONVEYING CONTROLLING METHOD AND PROGRAM - To convey an object container so as to prevent the content thereof from being diffused, there is provided an information controlling apparatus which controls a robot conveying the object container, and comprises: a 3D shape measuring unit configured to measure the 3D shape of the object container; a state measuring unit configured to measure the state of the content of the object container; a conveying method determining unit configured to determine the conveying method for the object container by the robot based on the 3D shape measured by the 3D shape measuring unit and the state measured by the state measuring unit; and an action planning unit configured to control the action of the robot based on the conveying method determined by the conveying method determining unit.02-04-2016

Daisuke Yamada, Shiojiri JP

Patent application numberDescriptionPublished
20160049574PIEZOELECTRIC DRIVING DEVICE, ROBOT, AND DRIVING METHOD OF THE SAME - A piezoelectric driving device includes a vibrating plate, and a piezoelectric vibrating body including a substrate, and piezoelectric elements provided on the substrate. The piezoelectric element includes a first electrode, a second electrode, and a piezoelectric body, and the first electrode, the piezoelectric body, and the second electrode are laminated in this order on the substrate. The piezoelectric vibrating body is installed on the vibrating plate so that the piezoelectric element is interposed between the substrate and the vibrating plate. A wiring pattern including a first wiring corresponding to the first electrode and a second wiring corresponding to the second electrode is formed on the vibrating plate, the first electrode and the first wiring are connected to each other through a first laminated conducting portion, and the second electrode and the second wiring are connected to each other through a second laminated conducting portion.02-18-2016

Daisuke Yamada, Kawagoe-Shi JP

Patent application numberDescriptionPublished
20160068646METHOD OF PRODUCING POLYURETHANE FOAM FOR COSMETIC APPLICATION AND POLYURETHANE FOAM FOR COSMETIC APPLICATION - A method of producing a polyurethane foam for cosmetic application by machine foaming using a polyol component, a polyisocyanate component, a catalyst, a foam stabilizer and an inert gas is disclosed. The polyol component used contains 30 mass % or more of bifunctional polyol with a ratio of primary hydroxyl groups to terminal hydroxyl groups of 70% or more and a number average molecular weight of 1000 to 3000 and has an average ratio of primary hydroxyl groups to terminal hydroxyl groups in the whole polyol component of 50% or more. The polyisocyanate component is used at an isocyanate index ranging from 85 to 130. A supply of the inert gas in terms of a volume at 0° C. and 1 atm is adjusted to two to ten times a total supply of liquid materials of the polyol component, polyisocyanate component, catalyst and foam stabilizer.03-10-2016
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