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Okura, Tokyo

Hirotaka Okura, Tokyo JP

Patent application numberDescriptionPublished
20140318335STEEL-STRUCTURE DEMOLITION METHOD - A steel-structure demolition method for demolishing a steel structure by causing the steel structure to collapse, the steel-structure demolition method includes: demolishing the steel structure in such a fashion that the steel structure is cut along a cutting line extending in a direction perpendicular to a depth direction thereof when having collapsed.10-30-2014

Kazuma Okura, Tokyo JP

Patent application numberDescriptionPublished
20120026645ELECTROLYTIC SOLUTION FOR ALUMINUM ELECTROLYTIC CAPACITOR, AND ALUMINUM ELECTROLYTIC CAPACITOR - Disclosed are an aluminum electrolytic capacitor having low impedance properties and a long service life, and an electrolytic solution which enables to give such capacitor. The electrolytic solution contains a solvent containing water, a phosphorus oxoacid ion-generating compound which can generate a phosphorus oxoacid ion in an aqueous solution, and a chelating agent which can coordinate with aluminum to form an aqueous aluminum chelate complex. The electrolytic solution further contains a compound selected from the group consisting of azelaic acid and an azelaic acid salt, and a compound selected from the group consisting of formic acid, a formic acid salt, adipic acid, an adipic acid salt, glutaric acid and a glutaric acid salt. The content of azelaic acid and/or the azelaic acid salt is at least 0.03 moles per kg of the solvent. When the electrolytic solution is used in an electrolytic capacitor which utilizes an anode having an aluminum oxide film containing phosphorus in an amount of 30 to 150 mg per unit CV product in terms of phosphoric acid, the service life of the capacitor is remarkably prolonged.02-02-2012
20140133066ELECTROLYTIC SOLUTION FOR ALUMINUM ELECTROLYTIC CAPACITOR, AND ALUMINUM ELECTROLYTIC CAPACITOR - Disclosed are an aluminum electrolytic capacitor having low impedance properties and a long service life, and an electrolytic solution which enables to give such capacitor. The electrolytic solution contains a solvent containing water, a phosphorus oxoacid ion-generating compound which can generate a phosphorus oxoacid ion in an aqueous solution, and a chelating agent which can coordinate with aluminum to form an aqueous aluminum chelate complex. The electrolytic solution further contains a compound selected from the group consisting of azelaic acid and an azelaic acid salt, and a compound selected from the group consisting of formic acid, a formic acid salt, adipic acid, an adipic acid salt, glutaric acid and a glutaric acid salt. The content of azelaic acid and/or the azelaic acid salt is at least 0.03 moles per kg of the solvent. When the electrolytic solution is used in an electrolytic capacitor which utilizes an anode having an aluminum oxide film containing phosphorus in an amount of 30 to 150 mg per unit CV product in terms of phosphoric acid, the service life of the capacitor is remarkably prolonged.05-15-2014

Kenichiro Okura, Tokyo JP

Patent application numberDescriptionPublished
20100026971PROJECTION-TYPE IMAGE DISPLAY APPARATUS - A projection-type image display apparatus includes a first reflecting optical element and a second reflecting optical element that are retained on a base. A base-side first positioning unit and a base-side second positioning unit are formed integrally with the base. The base-side first positioning unit abuts against the first reflecting optical element to define a position of the first reflecting optical element. The base-side second positioning unit abuts against the second reflecting optical element to define a position of the second reflecting optical element.02-04-2010
20110188007IMAGE PROJECTION APPARATUS - A dust-proof enclosure portion which stores therein an emission portion of a projection unit and in which a projection window from which image light is emitted is formed to direct upward, and a cabinet shielding structure which holds a screen on a front side, in which an opening that introduces the image light emitted from the projection window of the projection unit is included, and in which a second reflection mirror that reflects the introduced image light toward the rear surface of the screen is arranged are included, in which a second dust-proof cover is detachably attached to the opening (light introducing and managing opening) of the cabinet shielding structure, the projection window is exposed in a state where the second dust-proof cover is removed, and the cabinet shielding structure is a sealed structure in a state where the second dust-proof cover is attached.08-04-2011
20110194035IMAGE PROJECTION DEVICE - An image projection device that includes an optical projection system including: a projection lens arranged with an optical axis thereof shifted with respect to a light modulation device to project the light beam obliquely onto the screen; a flat mirror that reflects the light beam from the projection lens, has a rotation center on a side thereof on which a light beam having a long path from the projection lens to the screen is reflected, rotates around the rotation center and adjusts an angle of the light beam; and a curved mirror that reflects and magnifies the light beam from the flat mirror, has a rotation center on a side thereof on which a light beam having a short path from the projection lens to the screen is reflected, rotates around the rotation center and adjusts the angle of the light beam.08-11-2011
20130215398VIDEO PROJECTION DEVICE - A video projection device includes an optical engine, a projection lens, a reflection mirror, a non-spherical mirror, a screen, and a cabinet which covers the lower surface and the back surface of the screen. The projection lens and the non-spherical mirror are placed at an approximate center in the leftward and rightward directions of the screen and at a back portion within the cabinet. The reflection mirror is placed at an approximate center in the leftward and rightward directions of the screen and at a front portion within the cabinet. The video projection device further includes projection-unit structural members for integrally coupling the projection lens, the reflection mirror and the non-spherical mirror to each other, thereby forming a projection unit.08-22-2013
20140132847VIDEO PROJECTION DEVICE - A video projection device includes an optical engine which projects video light, an aspherical mirror which reflects the video light projected by the optical engine with a reflective surface formed in a rotationally symmetrical shape centering on an optical axis, a reflective screen on which the video light reflected by the aspherical mirror is projected, a shielding housing which houses the optical engine, the aspherical mirror, and an electric circuit portion which electrically drives the optical engine, and a strut member which connects a rear surface portion of the shielding housing, and a rear surface portion of the reflective screen in a state where the rear surface portion of the shielding housing and the rear surface portion of the reflective screen are positioned.05-15-2014
20140307234IMAGE PROJECTION APPARATUS - The size of an image is adjusted without changing the position of the lower side of a screen. An image projection apparatus includes an optical engine that emits image light constituting an image, and a casing having a configuration in which the optical engine is movable in a direction parallel to a path of a bottom light beam of the image light, the bottom light beam being directed toward a lower side of the screen.10-16-2014

Patent applications by Kenichiro Okura, Tokyo JP

Masayuki Okura, Tokyo JP

Patent application numberDescriptionPublished
20090098399Coating Solution, and Gas Barrier Film, Gas Barrier Laminate and Gas Barrier Multilayer Film, Using the Coating Solution, and Their Manufacturing Methods - A coating solution comprising: 04-16-2009
20150096741MEMBER FOR HYDROCARBON RESOURCE COLLECTION DOWNHOLE TOOL - A downhole tool member for hydrocarbon resource recovery, comprising a shaped body of a polyglycolic acid resin having a weight average molecular weight of at least 70,000, having an effective thickness which is ½ or more of a critical thickness of surface decomposition, and exhibiting a thickness reduction rate in water which is constant with respect to time. As a result, it has become possible to more accurately design the strength and time up to the collapse of the downhole tool member which forms the whole or a part of a downhole tool for developing or repairing downholes for recovery of hydrocarbon resources, such as oil and gas.04-09-2015
20150144348BALL SEALER FOR HYDROCARBON RESOURCE COLLECTION AS WELL AS PRODUCTION METHOD THEREFOR AND DOWNHOLE TREATMENT METHOD USING SAME - A ball sealer for hydrocarbon resource recovery, comprising: a generally spherical entire structure including at least two layers of a spherical core and a surface resin layer covering the spherical core, of which at least the surface resin layer comprises a polyglycolic acid resin; and having a diameter of at least about 25 mm (1 inch). The ball sealer is produced through a process comprising the steps of: disposing a spherical core by a support pin at a substantially central position within a mold cavity, injecting a surface resin comprising a polyglycolic acid resin into the cavity surrounding the spherical core, causing the support pin to retreat up to a wall surface of mold cavity in synchronism with a completion of the injection of the surface resin, and then hardening the surface resin. As a result, it is possible to produce a large-diameter ball sealer suitable for use in the hydraulic fracturing process (hydraulic fracturing) widely used for recovery of hydrocarbon resources by using a polyglycolic acid resin which is a biodegradable resin having good mechanical strengths and a good size designability at least as a surface-forming resin, through relatively simple steps and with good dimensional accuracy.05-28-2015
20150252646SOLIDIFICATION- AND EXTRUSION-MOLDED ARTICLE OF POLYGLYCOLIC ACID AND METHOD FOR MANUFACTURING SAME - A solidification- and extrusion-molded article of polyglycolic acid that is formed of a resin material containing polyglycolic acid, the polyglycolic acid having a melt viscosity of 200 to 2,000 Pa·s when measured at a temperature of 270° C. under a shearing speed of 120 sec09-10-2015
20150290858SOLIDIFICATION- AND EXTRUSION-MOLDED ARTICLE OF POLYGLYCOLIC ACID AND METHOD FOR MANUFACTURING SAME - Provided are: a polyglycolic acid (PGA) solidification- and extrusion-molded article that is formed from a resin material containing PGA, the PGA having a weight average molecular weight of 100,000 to 300,000 and a melt viscosity (temperature: 270° C.; shearing speed: 120 sec10-15-2015
20150292292DOWNHOLE TOOL MEMBER FOR HYDROCARBON RESOURCE RECOVERY - A downhole tool member for hydrocarbon resource recovery, comprising a shaped body of a polyglycolic acid resin blended with an inorganic or organic short fiber reinforcement material, and having thickness reduction rate characteristics when held in water at 120° C., inclusive of: an initial thickness reduction rate (as an average for a holding period for 4 hours) which is at most 0.8 times that of a shaped body of the polyglycolic acid resin alone, and has a terminal thickness reduction rate (after the thickness decreases to 50% or less of an initial thickness) which is larger than 1.5 times the initial thickness reduction rate. As a result, it is possible to provide a downhole tool member, that is a temporary tool for formation or repair of downholes for recovery of hydrocarbon resources including oil and gas, or a part of the tool, which allows more accurate designing of collapse characteristics thereof.10-15-2015
20150354311POLY-L-LACTIC ACID SOLID-STATE EXTRUSION MOLDED ARTICLE, METHOD FOR PRODUCING THE SAME, AND USE APPLICATIONS OF THE SAME - A poly-L-lactic acid (PLLA) solid-state extrusion molded article having a weight average molecular weight of from 100,000 to 380,000 and a melt viscosity of from 20 to 2,000 Pa·s (at a temperature of 240° C. and a shear rate of 120 sec12-10-2015

Ryoichi Okura, Tokyo JP

Patent application numberDescriptionPublished
20090084409Cleaning apparatus, cleaning system using cleaning apparatus, cleaning method of substrate-to-be-cleaned - [Object] It is an object of the invention to provide a cleaning apparatus for cleaning a precision substrate capable of preventing a contamination factor from adhering again, to prevent a natural oxide film from being formed, and to prevent a water mark.04-02-2009

Seiji Okura, Tokyo JP

Patent application numberDescriptionPublished
20090090382METHOD OF SELF-CLEANING OF CARBON-BASED FILM - A method of self-cleaning a plasma reactor upon depositing a carbon-based film on a substrate a pre-selected number of times, includes: (i) exciting oxygen gas and/or nitrogen oxide gas to generate a plasma; and (ii) exposing to the plasma a carbon-based film accumulated on an upper electrode provided in the reactor and a carbon-based film accumulated on an inner wall of the reactor.04-09-2009
20090269506Method and apparatus for cleaning of a CVD reactor - The present invention provides a process and an apparatus for remote plasma cleaning of a process chamber of a chemical vapor deposition (CVD) reactor. The reactive species are generated in a remote plasma unit and are introduced into the process chamber through a plurality of inlet holes. The reactive species are free radicals such as oxygen radicals, fluorine radicals, and the like. These reactive species react with the unwanted residues in the process chamber and generate volatile products. The invention also provides a method for controlling the flow rate of the reactive species.10-29-2009

Patent applications by Seiji Okura, Tokyo JP

Shumpei Okura, Tokyo JP

Patent application numberDescriptionPublished
20160042403EXTRACTION DEVICE, EXTRACTION METHOD, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM - The extraction device according to the present application includes an acquisition unit and an extraction unit. The acquisition unit acquires behavior histories of users being candidates to whom content is to be distributed. The extraction unit extracts target users expected to perform specified behavior, based on a behavior history designated by a content provider, of the behavior histories acquired by the acquisition unit. For example, the extraction unit uses a model for determining the degree of similarity between a user performing the specified behavior and a target user expected to perform specified behavior based on the behavior history designated by the content provider in order to extract the target users.02-11-2016

Shunsuke Okura, Tokyo JP

Patent application numberDescriptionPublished
20150365618SOLID-STATE IMAGE SENSING DEVICE HAVING SIGNAL HOLDING CIRCUITS FOR HOLDING IMAGE DIGITAL SIGNALS CONVERTED BY ANALOG-DIGITAL CONVERTERS - A solid-state image sensing device according to the invention which can reduce an instantaneous current occurring in transferring image digital signals from analog-digital converters to registers to reduce noise sneaking into the analog-digital converters and a pixel array includes a pixel array, a vertical scanning circuit, a plurality of column ADCs, a plurality of registers, and control signal generation units. The control signal generation units are provided for respective groups into which the column ADCs and the registers disposed on one side of the pixel array are divided, and generate control signals of different timings, for respective units including at least one group, of transfer of converted image digital signals to the registers from the column ADCs operating in parallel.12-17-2015

Susumu Okura, Tokyo JP

Patent application numberDescriptionPublished
20140368167DC/DC CONVERTER, ON-BOARD UNIT AND CHARGING DEVICE - A DC/DC converter 12-18-2014

Tsutomu Okura, Tokyo JP

Patent application numberDescriptionPublished
20130169306Light Source Evaluation Device and Solar Cell Evaluation Device - With a light source evaluation device 07-04-2013

Yasuhiro Okura, Tokyo JP

Patent application numberDescriptionPublished
20090282323Window display system - A window display system has a text acquisition section for acquiring text of an original window in a superimposed region; a text transmitter for transmitting to a predetermined server the acquired text, the coordinates of the superimposed region, and the coordinates of each part of the text; and a display processor for receiving a screen generated in the server, and displaying the screen in the overlapping window, wherein the server has a screen generator for determining whether a predetermined keyword is contained in the text received from the user terminal, extracting the keyword and the URL if the keyword is contained in the text, and generating and transmitting a screen in which a link to a URL is embedded in the position of a keyword contained in the text on the basis of the coordinates of the text received from the user terminal.11-12-2009

Yoshinori Okura, Tokyo JP

Patent application numberDescriptionPublished
20150295944CONTROL SYSTEM, CONTROL METHOD, AND CONTROLLER - In case a security abnormality has been detected in a control system, ensuring the safety of the control system is accomplished. In a control system including field equipment that executes a controlled process and a controller that controls execution of a controlled process by the field equipment, the controller detects a security abnormality in the control system and determines and executes a security countermeasure method against the security abnormality based on a status of a controlled process when the security abnormality has been detected in the control system.10-15-2015

Yuji Okura, Tokyo JP

Patent application numberDescriptionPublished
20090290612SEMICONDUCTOR LASER - A semiconductor laser having a double channel ridge structure includes: a ridge; channel portions located on opposite sides of the ridge, sandwiching the ridge, and having an equivalent refractive index lower than the equivalent refractive index of the ridge; and layers defining outside surfaces of the channel portions and, having an equivalent refractive index higher than the equivalent refractive index of the channel portions. The ridge has a flare ridge structure with a width that is widened toward a light outgoing end surface, and the width of the channel portions where the width of the ridge is the narrowest is wider than the channel portions at the light outgoing end surface.11-26-2009
20100003778METHOD OF MANUFACTURING SEMICONDUCTOR LASER - A method of manufacturing a semiconductor laser includes sequentially forming a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer on top of one another on a semiconductor substrate; forming a ridge in the second conductivity type semiconductor layer; forming a first insulating film on the second conductivity type semiconductor layer at a first temperature; forming a second insulating film on the first insulating film at a second temperature, lower than the first temperature; and forming an electrode on the second insulating film.01-07-2010
20100309661MULTI-WAVELENGTH SEMICONDUCTOR LASER DEVICE - A multi-wavelength semiconductor laser device includes a block having a rectangular groove with a bottom face and two side faces extending in a predetermined direction; and laser diodes with different light emission wavelengths mounted on the bottom face and the side faces of the groove in the block so that their laser beams are emitted in the predetermined direction.12-09-2010
20130089116MULTI-WAVELENGTH SEMICONDUCTOR LASER DEVICE - A multi-wavelength semiconductor laser device includes a block having a rectangular groove with a bottom face and two side faces extending in a predetermined direction; and laser diodes with different light emission wavelengths mounted on the bottom face and he side faces of the groove in the block so that their laser beams are emitted in the predetermined direction,04-11-2013
20140146844Multi-Wavelength Semiconductor Laser Device - A multi-wavelength semiconductor laser device includes a block having a V-shaped groove with two side faces extending in a predetermined direction; and laser diodes with different light emission wavelengths mounted on the side faces of the groove in the block so that their laser beams are emitted in the predetermined direction.05-29-2014

Patent applications by Yuji Okura, Tokyo JP

Yukinobu Okura, Tokyo JP

Patent application numberDescriptionPublished
20120152080METHOD OF MANUFACTURING BLAZED DIFFRACTIVE GRATING AND METHOD OF MANUFACTURING MOLD FOR MANUFACTURING BLAZED DIFFRACTIVE GRATING - A method of manufacturing a blazed diffractive grating includes a first step of forming a first groove having a first surface and a second surface by moving, in the first direction at a first position in the second direction, a cutting tool having a first cutting blade and a second cutting blade to cut the object; a second step of forming a second groove by moving, in the first direction at a second position separated from the first position in the second direction by a grating pitch, the cutting tool to cut the object; and a third step of forming a blazed surface of the first groove using the first cutting blade by moving, in the first direction at a third position between the first position and the second position, the cutting tool to cut the first surface of the first groove.06-21-2012
20130089117ECHELLE DIFFRACTION GRATING, EXCIMER LASER, MANUFACTURING METHOD OF ECHELLE DIFFRACTION GRATING, AND ArF EXCIMER LASER - An Echelle diffraction grating has a Littrow configuration. Each grating includes a resin layer made of light curing resin and having a thickness between 2 μm and 10 μm, and a reflective coating layer formed on the resin layer, having a thickness between 120 nm and 500 nm, and made of aluminum. An apex angle between a blazed surface and a counter surface is between 85° and 90°. A first blaze angle is an angle that maximizes diffraction efficiency of a set blazed order for incident light of a wavelength of 193.3 nm. A blaze angle has an initial value of a second blaze angle smaller than the first blaze angle. 0.25°≦bd−ba≦1.2° is satisfied where bd denotes the first blaze angle and ba denotes the second blaze angle.04-11-2013
20140376095DIFFUSING PLATE HAVING MICROLENS ARRAY - A diffusing plate includes a microlens array in which a plurality of microlenses are arranged, wherein the microlenses have such a shape that a curvature of a sectional shape including a center line of the microlenses varies depending on a direction of the center line, and wherein microlenses that are different in the direction of a center line where the curvature of the outline is largest are arranged.12-25-2014
20150369977OPTICAL ELEMENT, SPECTROSCOPIC APPARATUS, AND METHOD FOR MANUFACTURING THE SAME - An optical element formed of a plurality of materials includes a middle layer between a base material and a reflecting member so as to suppress stripping, cracking and the like of the optical surface due to the difference in coefficients of thermal expansion among the component materials, in the case where a temperature difference in the service environment or a temperature difference between a manufacturing environment and the service environment is large.12-24-2015

Patent applications by Yukinobu Okura, Tokyo JP

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