Patents by Inventor Koji Mimura
Koji Mimura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8149350Abstract: A micro-louver (1) includes: a transparent substrate (2); a concavoconvex shape portion (5) formed on at least one surface of the transparent substrate (2) and in a prescribed pattern for diffracting incident light to form an image; and a light controlling layer (7) including at least one transparent layer (3) and at least light-absorption layer (4) arranged alternately on said at least one surface of the transparent substrate (2), each of said at least one transparent layer (3) and said at least one transparent layer (4) extending in a direction that intersects said at least one surface of the transparent substrate (2).Type: GrantFiled: October 3, 2007Date of Patent: April 3, 2012Assignee: NLT Technologies, Ltd.Inventors: Koji Mimura, Ken Sumiyoshi
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Publication number: 20120013560Abstract: A micro-louver (1) includes: a transparent substrate (2); a concavoconvex shape portion (5) formed on at least one surface of the transparent substrate (2) and in a prescribed pattern for diffracting incident light to form an image; and a light controlling layer (7) including at least one transparent layer (3) and at least light-absorption layer (4) arranged alternately on said at least one surface of the transparent substrate (2), each of said at least one transparent layer (3) and said at least one transparent layer (4) extending in a direction that intersects said at least one surface of the transparent substrate (2).Type: ApplicationFiled: September 23, 2011Publication date: January 19, 2012Applicant: NLT Technologies, Ltd.Inventors: Koji MIMURA, Ken SUMIYOSHI
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Publication number: 20110310085Abstract: Provided is a display device having a viewing angle changing function, which is capable of preventing leakage of information displayed on a display screen even when there is a fault generated in changing the viewing angle. The image display device including a viewing angle changing element capable of changing a wide vision display and a narrow vision display and including a display element is provided with a detection element which detects a fault generated in the viewing angle changing element and a module for changing to a narrow vision display when there is a fault based on a detection value of the detection element. For example, when there is a fault, a transparent heater is operated to heat a liquid crystal layer to set a transparent-scattering changing element to a transparent state and forcibly set the display device to a narrow vision display.Type: ApplicationFiled: June 20, 2011Publication date: December 22, 2011Applicant: NEC LCD TECHNOLOGIES, LTD.Inventors: Koji MIMURA, Ken SUMIYOSHI
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Publication number: 20110265795Abstract: A maintenance and management system for tracheal tube in tracheal intubation makes it easier or steadier to identify endotracheal tube placement in the airway, check a tracheal stenosis due to sputum clogging, confirm a breakaway of the tube out of the airway, store and monitor measured data, diagnose automatically the complications, and obtain data for reproducing function of sound in a breath circuit. A ventilator tube is connected to the endotracheal tube and provided therein with a microphone to sense a breath sound transmitted via the endotracheal tube and a pressure sensing element to measure a circuit pressure in the ventilator circuit for the endotracheal tube. The data derived from the sensing elements is processed in a personal computer to be used to measure whether the breath sound and the circuit pressure are within a range of a prescribed value.Type: ApplicationFiled: September 27, 2010Publication date: November 3, 2011Applicant: KYUSYU INSTITUTE OF TECHNOLOGYInventors: Yoshihiko Tagawa, Koji Mimura, Tomohisa Inada, Takahiro Matsumoto
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Patent number: 8026880Abstract: A microlouver includes a periodic structure in which a transparent layer and a light absorption layer are alternately disposed with a constant, repetitive period. The range of the exit direction of a light beam passing through the transparent layer is restricted by the light absorption layer. The periodic structure includes a periodic structure portion divided in the direction that intersects the direction in which the transparent layer and the light absorption layer are repeatedly disposed. In the periodic structure portion, between the periodic structures adjacent to each other, there is a difference of 180 degree in the phase of spatial frequency of each periodic structure.Type: GrantFiled: August 29, 2007Date of Patent: September 27, 2011Assignee: NEC LCD Technologies, LtdInventors: Koji Mimura, Ken Sumiyoshi
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Publication number: 20110176312Abstract: An optical element manufacturing method according to the present invention includes: disposing a mask on a transparent photosensitive resin; patterning said transparent resin by applying an exposure light to said transparent photosensitive resin through said mask to form a transparent layer; forming a light absorbing layer by filling a gap in the transparent layer with a black curable resin; and illuminating a mask surface of the mask with the exposure light at an angle.Type: ApplicationFiled: February 7, 2011Publication date: July 21, 2011Applicant: NEC LCD TECHNOLOGIES, LTD.Inventors: Koji MIMURA, Ken SUMIYOSHI
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Publication number: 20110085096Abstract: To provide an optical writing device that outputs image light to be recorded to a display recording medium. An optical element thereof includes a two-dimensional periodic structural body including periodic structure sections sectioned along a direction orthogonal to the direction along which transparent layers and light absorption layers are arranged alternately in a repeated manner. At least a part of the periodic structure sections is in a periodic structure in which the transparent layers and the light absorption layers are arranged alternately by varying phases of spatial frequencies of the transparent layers neighboring in the orthogonal direction. Repeated period pitches of the transparent layers and the light absorption layers in the two orthogonal directions of the two-dimensional periodic structural body are set to match with each other, and the repeated period pitches are set to be narrower than a layout pitch of the pixels of the spatial light modulating element.Type: ApplicationFiled: October 13, 2010Publication date: April 14, 2011Applicant: NEC LCD TECHNOLOGIES, LTD.Inventor: Koji MIMURA
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Publication number: 20110085182Abstract: An image forming apparatus includes: a functional element substrate to which a pixel is formed in a predetermined cycle; an opposed substrate formed on the functional element substrate; and an optical device arranged on the opposed substrate, which includes a transparent layer and an optical absorption layer arranged in a cycle of 1/n (n is an integer number) of the cycle of arranging the pixel, and restricts spread of transmitted light.Type: ApplicationFiled: October 13, 2010Publication date: April 14, 2011Applicant: NEC LCD TECHNOLOGIES, LTD.Inventors: Kunihiro SHIOTA, Koji MIMURA, Hiroshi TANABE, Koji SHIGEMURA
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Publication number: 20110080538Abstract: Provided is an optical element manufacturing method that is capable of forming various kinds of shapes and capable of achieving sophisticated functions, improved yields, and cost reductions. The method includes: a step that applies a transparent photosensitive resin on a transparent substrate with light-shielding patterns provided thereon; a step that forms transparent layers by performing patterning through irradiating exposure light of an arbitrary amount on the transparent photosensitive resin via the transparent substrate with the light-shielding patterns provided thereon; a step that forms light absorption layers by filling a black curable resin between the transparent layers; and an irradiation step that irradiates the exposure light in an oblique direction to the surface of the transparent substrate where the light-shielding patterns are formed in a state where the transparent substrate is being bent.Type: ApplicationFiled: September 27, 2010Publication date: April 7, 2011Applicant: NEC LCD TECHNOLOGIES, LTD.Inventors: KUNIHIRO SHIOTA, KOJI MIMURA
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Patent number: 7916241Abstract: An optical element manufacturing method according to the present invention includes: disposing a mask on a transparent photosensitive resin; patterning said transparent resin by applying an exposure light to said transparent photosensitive resin through said mask to form a transparent layer; forming a light absorbing layer by filling a gap in the transparent layer with a black curable resin; and illuminating a mask surface of the mask with the exposure light at an angle.Type: GrantFiled: October 3, 2007Date of Patent: March 29, 2011Assignee: NEC LCD Technologies, Ltd.Inventors: Koji Mimura, Ken Sumiyoshi
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Publication number: 20100328778Abstract: A beam direction control element has transparent areas and light absorption areas alternately arranged on a surface of a substrate, wherein the light absorption areas function as a louver for controlling the direction of a beam of light. The beam direction control element is manufactured by disposing an optically transparent material on a first transparent substrate to form transparent ridges which constitute the transparent areas, filling curable and photo-absorptive fluid in gaps between the transparent ridges, and then curing the fluid to form the light absorption areas.Type: ApplicationFiled: September 8, 2010Publication date: December 30, 2010Applicant: NEC LCD TECHNOLOGIES, LTD.Inventors: Koji MIMURA, Ken SUMIYOSHI
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Patent number: 7821599Abstract: A liquid crystal display element is disclosed for displaying an image. The liquid crystal display element comprises a liquid crystal display layer in which voltages are applied to a transmissive display unit and a reflective display unit, defined in one pixel, independently of each other, and a light source for irradiating the liquid crystal display layer with light from the back, and a reflection control element disposed between the liquid crystal display layer and light source. The liquid crystal display element is switched between a reflective state and a transmissive state in accordance with a voltage applied to the reflection control element. The liquid crystal display element is switched among a transmissive display mode, a combined reflective/transmissive display mode, and a reflective display mode, by utilizing the transmissive display unit and reflective display unit to display an image independently of each other.Type: GrantFiled: July 10, 2007Date of Patent: October 26, 2010Assignee: NEC LCD Technologies, LtdInventors: Koji Mimura, Ken Sumiyoshi, Jin Matsushima
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Patent number: 7817361Abstract: A beam direction control element has transparent areas and light absorption areas alternately arranged on a surface of a substrate, wherein the light absorption areas function as a louver for controlling the direction of a beam of light. The beam direction control element is manufactured by disposing an optically transparent material on a first transparent substrate to form transparent ridges which constitute the transparent areas, filling curable and photo-absorptive fluid in gaps between the transparent ridges, and then curing the fluid to form the light absorption areas.Type: GrantFiled: May 9, 2007Date of Patent: October 19, 2010Assignee: NEC LCD Technologies, Ltd.Inventors: Koji Mimura, Ken Sumiyoshi
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Patent number: 7701532Abstract: To provide a sight controllable display device that is capable of switching a regular display and a concealed display easily. A display panel and a modulator are disposed between two polarizing plates. The display panel performs a regular display drive. Meanwhile, the modulator drives to operate at a speed faster than twice the speed of the display panel and modulate the display image of the display panel. When displaying an image that is desired to be concealed, the period where the modulator is not in action is selected and viewed by a shutter. By stopping the action of the modulator, the regular display can be viewed as it is without the shutter.Type: GrantFiled: March 6, 2007Date of Patent: April 20, 2010Assignees: NEC Corporation, NEC LCD Technologies, Ltd.Inventors: Ken Sumiyoshi, Koji Mimura
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Patent number: 7682695Abstract: The object of the present invention is to provide a powder core and method for making the same that is equipped with insulative coating having superior heat resistance, with the coating making it possible to adequately restrict the flow of eddy currents between particles. The powder core is equipped with a plurality of compound magnetic particles bonded to each other. Each of said plurality of composite magnetic particles includes: a metal magnetic particle 10; an insulative lower layer coating 20 surrounding a surface 10a of said metal magnetic particle 10; an upper layer coating 30 surrounding said lower layer coating 20 and containing silicon; and dispersed particles 50 containing a metal oxide compound and disposed in said lower layer coating 20 and/or said upper layer coating 30. A mean particle diameter R of the dispersed particles 50 meets the condition 10 nm<R?2 T, where the average thickness of the coating combining the lower layer coating 20 and the upper layer coating 30 is T.Type: GrantFiled: January 28, 2005Date of Patent: March 23, 2010Assignee: Sumitomo Electric Industries, Ltd.Inventors: Hirokazu Kugai, Naoto Igarashi, Toru Maeda, Kazuhiro Hirose, Haruhisa Toyoda, Koji Mimura, Takao Nishioka
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Publication number: 20100028195Abstract: A soft magnetic material includes a plurality of composite magnetic particles (40) each including a metal magnetic particle (10) and an insulation coating (20) covering the surface of the metal magnetic particle (10), wherein the insulation coating (20) contains Si (silicon), and 80% or more of Si contained in the insulation coating constitutes a silsesquioxane skeleton. Therefore, it is possible to effectively decrease a hysteresis loss while suppressing an increase in eddy-current loss.Type: ApplicationFiled: October 9, 2009Publication date: February 4, 2010Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Toru Maeda, Kazuyuki Maeda, Yasushi Mochida, Koji Mimura
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Patent number: 7622202Abstract: A soft magnetic material includes a plurality of composite magnetic particles (40) each including a metal magnetic particle (10) and an insulation coating (20) covering the surface of the metal magnetic particle (10), wherein the insulation coating (20) contains Si (silicon), and 80% or more of Si contained in the insulation coating constitutes a silsesquioxane skeleton. Therefore, it is possible to effectively decrease a hysteresis loss while suppressing an increase in eddy-current loss.Type: GrantFiled: July 19, 2006Date of Patent: November 24, 2009Assignee: Sumitomo Electric Industries, Ltd.Inventors: Toru Maeda, Kazuyuki Maeda, Yasushi Mochida, Koji Mimura
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Publication number: 20090238847Abstract: Disclosed is a deodorant particle having a BET specific surface area of 10 m2/g or more that are obtained by copolymerizing a monomer system including a crosslinkable vinyl monomer and a vinyl monomer having a heteroaromatic ring. The deodorant particles may contain a metal ion. Also disclosed is a process of producing the deodorant particles including the step of copolymerizing a monomer system containing a crosslinkable vinyl monomer and a vinyl monomer having a heteroaromatic ring by oil-in-water emulsion polymerization or precipitation polymerization using an organic solvent whose solubility parameter is different from that of the monomers by an absolute difference of 0 to 2.0. The process can further include the step of bringing the particles obtained by the polymerization into contact with a solvent having a metal salt dissolved therein to support a metal ion on the particle.Type: ApplicationFiled: June 27, 2007Publication date: September 24, 2009Inventors: Takashi Itoi, Koji Mimura, Daisuke Yamazaki, Masafumi Miyamoto, Tetsuji Kito, Seiichi Miyanaga, Hirohiko Ishida
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Publication number: 20090213298Abstract: The present invention relates to an optical modulating display device (200) such as a liquid crystal displaying device provided with a front-light type planar illuminating device. The above front-light type planar illuminating device allows illuminating light to propagate inside a substrate (1), and is provided with a low refraction layer (3) being lower in refractive index than the substrate (1) and being in close contact with the inner surface of the substrate (1), and with reflection structure (11) on the outer surface of the substrate (1). The optical modulating display device (200) provided with the above front-light type planar illuminating device can ensure a sufficient amount of guide light propagating inside the substrate (1) and reduce non-uniformity in display illumination. And a display apparatus mounting the above optical modulating display device (200) thereon can be reduced in thickness and weight and provide a high quality display.Type: ApplicationFiled: April 29, 2009Publication date: August 27, 2009Applicant: NEC CorporationInventors: Koji Mimura, Ken Sumiyoshi, Goroh Saitoh, Jin Matsusima, Yoshie Yagi
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Patent number: 7556838Abstract: A soft magnetic material includes a plurality of composite magnetic particles (30) having metallic magnetic particles (10) that are composed of pure iron, and an insulation film (20) that surrounds the surface of the metallic magnetic particles (10), wherein the manganese content of the metallic magnetic particles (10) is 0.013 mass % or less, and is more preferably 0.008 mass % or less. Hysteresis loss can thereby be effectively reduced.Type: GrantFiled: July 19, 2006Date of Patent: July 7, 2009Assignee: Sumitomo Electric Industries, Ltd.Inventors: Toru Maeda, Haruhisa Toyoda, Koji Mimura, Yasushi Mochida