Patents by Inventor Masaaki Kubo
Masaaki Kubo 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: 6930746Abstract: The present invention has its object to provide a method of spraying particles by which predetermined quantities of particles can be disposed on specified electrodes, in particular a method of spraying particles by which spacers can be sprayed in interelectrode gaps selectively even in the case of substrates comprising pattern-forming transparent electrodes, such as those used in liquid crystal display devices, and a method of producing liquid crystal display devices of high contrast and high display uniformity by which spacers can be disposed in interelectrode gaps without sacrificing the aperture ratio and by which spacers can be disposed on the substrate without irregularity to attain a uniform cell thickness over the whole substrate, as well as a particle spraying apparatus and a liquid crystal display device.Type: GrantFiled: June 12, 2003Date of Patent: August 16, 2005Assignees: Sekiusi Chemical Co., Ltd., Sharp Kabushiki KaishaInventors: Kazuya Yoshimura, Makoto Nakahara, Takatoshi Kira, Daisuke Ikesugi, Akihiko Tateno, Hiroyuki Nakatani, Masaki Ban, Hiroshi Murata, Masaaki Kubo
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Patent number: 6891295Abstract: A flywheel magneto generator which comprises a rotor having a magnet attached to an outer circumferential side of a flywheel and a stator constructed by winding a generating coil around a core having a magnetic pole portion opposed to a magnetic pole of the rotor, wherein a through hole is formed in a peripheral wall portion of the flywheel, a yoke plate is provided so as to block one end of the through hole which is opened on an inner circumferential side of a peripheral wall portion of the flywheel, the magnet to which a magnet cover is attached is supported on the yoke plate, and one magnetic pole face of the magnet is opposed to the yoke plate.Type: GrantFiled: April 8, 2004Date of Patent: May 10, 2005Assignee: Kokusan Denki Co., Ltd.Inventors: Ken Naritomi, Masaaki Kubo, Tooru Notsu, Masakazu Inaba, Junji Kimura, Takeshi Watanabe
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Publication number: 20050028784Abstract: A control unit is used for controlling a direct fuel injection type internal combustion engine. The control unit controls a fuel injection valve to have a first fuel injection mode wherein a penetration force of an injected fuel sharply increases at an initial stage of a fuel injection and thereafter an increasing rate of the penetration force gradually lowers with passage of time and a second fuel injection mode wherein the penetration force of the injected fuel sharply increases at a middle stage of the fuel injection. The control unit further controls the fuel injection valve in a manner to switch the first and second fuel injection modes in accordance with an operation condition of the engine.Type: ApplicationFiled: July 23, 2004Publication date: February 10, 2005Inventors: Masaaki Kubo, Atsushi Teraji, Koji Hiraya, Isamu Hotta
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Patent number: 6851408Abstract: An direct fuel injection spark ignition internal combustion engine comprises a fuel injection valve arranged at a substantially center part of an upper are of a combustion chamber, and a piston having a crown surface with a cavity shaped so that a center axis of a substantially conical-shaped fuel stream injected from the fuel injection valve is substantially coincident with a center axis of the piston. In a low-load stratified combustion operating region when spark ignition is executed, the fuel injection angle is increased to form a first combustible air-fuel mixture before the fuel stream collides against the cavity of the piston crown surface. In a high-load stratified combustion operating region, the fuel injection angle is reduced to form a second combustible air-fuel mixture after the fuel stream collides against the cavity of the piston crown surface.Type: GrantFiled: October 28, 2003Date of Patent: February 8, 2005Assignee: Nissan Motor Co., Ltd.Inventors: Isamu Hotta, Koji Hiraya, Masaaki Kubo, Akihiko Kakuho
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Publication number: 20040257520Abstract: The present invention has its object to provide a method of spraying particles by which predetermined quantities of particles can be disposed on specified electrodes, in particular a method of spraying particles by which spacers can be sprayed in interelectrode gaps selectively even in the case of substrates comprising pattern-forming transparent electrodes, such as those used in liquid crystal display devices, and a method of producing liquid crystal display devices of high contrast and high display uniformity by which spacers can be disposed in interelectrode gaps without sacrificing the aperture ratio and by which spacers can be disposed on the substrate without irregularity to attain a uniform cell thickness over the whole substrate, as well as a particle spraying apparatus and a liquid crystal display device.Type: ApplicationFiled: April 15, 2004Publication date: December 23, 2004Applicants: Sharp Kabushiki Kaisha, Sekisui Chemical Co., Ltd.Inventors: Kazuya Yoshimura, Makoto Nakahara, Takatoshi Kira, Daisuke Ikesugi, Akihiko Tateno, Hiroyuki Nakatani, Masaki Ban, Hiroshi Murata, Masaaki Kubo
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Publication number: 20040201299Abstract: A flywheel magneto generator which comprises a rotor having a magnet attached to an outer circumferential side of a flywheel and a stator constructed by winding a generating coil around a core having a magnetic pole portion opposed to a magnetic pole of the rotor, wherein a through hole is formed in a peripheral wall portion of the flywheel, a yoke plate is provided so as to block one end of the through hole which is opened on an inner circumferential side of a peripheral wall portion of the flywheel, the magnet to which a magnet cover is attached is supported on the yoke plate, and one magnetic pole face of the magnet is opposed to the yoke plate.Type: ApplicationFiled: April 8, 2004Publication date: October 14, 2004Inventors: Ken Naritomi, Masaaki Kubo, Tooru Notsu, Masakazu Inaba, Junji Kimura, Takeshi Watanabe
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Publication number: 20040123833Abstract: An direct fuel injection spark ignition internal combustion engine comprises a fuel injection valve arranged at a substantially center part of an upper are of a combustion chamber, and a piston having a crown surface with a cavity shaped so that a center axis of a substantially conical-shaped fuel stream injected from the fuel injection valve is substantially coincident with a center axis of the piston. In a low-load stratified combustion operating region when spark ignition is executed, the fuel injection angle is increased to form a first combustible air-fuel mixture before the fuel stream collides against the cavity of the piston crown surface. In a high-load stratified combustion operating region, the fuel injection angle is reduced to form a second combustible air-fuel mixture after the fuel stream collides against the cavity of the piston crown surface.Type: ApplicationFiled: October 28, 2003Publication date: July 1, 2004Applicant: Nissan Motor Co., Ltd.Inventors: Isamu Hotta, Koji Hiraya, Masaaki Kubo, Akihiko Kakuho
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Patent number: 6744485Abstract: The present invention has its object to provide a method of spraying particles by which predetermined quantities of particles can be disposed on specified electrodes, in particular a method of spraying particles by which spacers can be sprayed in interelectrode gaps selectively even in the case of substrates comprising pattern-forming transparent electrodes, such as those used in liquid crystal display devices, and a method of producing liquid crystal display devices of high contrast and high display uniformity by which spacers can be disposed in interelectrode gaps without sacrificing the aperture ratio and by which spacers can be disposed on the substrate without irregularity to attain a uniform cell thickness over the whole substrate, as well as a particle spraying apparatus and a liquid crystal display device.Type: GrantFiled: June 12, 2003Date of Patent: June 1, 2004Assignees: Sekiusi Chemical Co., Ltd., Sharp Kabushiki KaishaInventors: Kazuya Yoshimura, Makoto Nakahara, Takatoshi Kira, Daisuke Ikesugi, Akihiko Tateno, Hiroyuki Nakatani, Masaki Ban, Hiroshi Murata, Masaaki Kubo
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Patent number: 6705274Abstract: In a direct injection spark-ignition engine with a swirl fuel injector, an orifice nozzle tip has an inclined surface that is formed on the lower end face of the orifice nozzle tip and inclined by a predetermined inclination angle with respect to a reference plane normal to an orifice axis. The predetermined inclination angle is based on both an in-cylinder pressure dependent spray angle during the stratified-charge late fuel injection on the compression stroke and an in-cylinder pressure dependent spray angle during the homogeneous-charge early fuel injection on the intake stroke. The nozzle hole is formed within the inclined surface of the predetermined inclination angle.Type: GrantFiled: June 7, 2002Date of Patent: March 16, 2004Assignee: Nissan Motor Co., Ltd.Inventor: Masaaki Kubo
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Patent number: 6666387Abstract: In a fuel injector with a swirler creating swirling fuel flow, a projected portion is formed as an orifice nozzle tip at an opening end of a nozzle hole. The projected portion includes a first sloped portion having a sloped surface whose height h1, measured in the orifice-axis direction, is dimensioned to gradually increase along the swirling-fuel-flow direction, and a second sloped portion having a sloped surface whose height h2, measured in the orifice-axis direction, is dimensioned to gradually decrease along the swirling-fuel-flow direction. In a &thgr;-h coordinate system constructed by a &thgr;-axis representing the angular position of the orifice nozzle tip and a h-axis representing the axial height of the projected portion, the projected portion is dimensioned so that the absolute value |dh1/d&thgr;|max of the gradient of the first sloped surface is dimensioned to be less than the absolute value |dh2/d&thgr;|max of the gradient of the second sloped surface.Type: GrantFiled: October 22, 2001Date of Patent: December 23, 2003Assignee: Nissan Motor Co., Ltd.Inventor: Masaaki Kubo
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Patent number: 6649221Abstract: Provided is a spacer microparticle spraying apparatus capable of selectively disposing spacer microparticles in electrode gaps where no pixels are present even on a substrate carrying an array of stripe electrodes in use for the STN liquid crystal display device, to a spacer particle spraying method and a method of manufacturing a liquid crystal display device which utilize said apparatus. The spacer microparticle spraying apparatus for selective disposition of a charged spacer microparticle on a substrate carrying a plurality of electrodes includes a spraying chamber adapted to accommodate the substrate, a spacer microparticle supply means for supplying the spacer microparticle into the spraying chamber and spraying it on the substrate, and a voltage application means for applying voltages to the electrodes disposed on the substrate, wherein the voltage application means is capable of applying different levels of voltages to the electrodes respectively.Type: GrantFiled: June 21, 2000Date of Patent: November 18, 2003Assignees: Sekisui Chemical Co., Ltd., Sharp Kabushiki Kaisha, Nisshin Engineering, Inc.Inventors: Akihiko Tateno, Hiroyuki Nakatani, Kazuya Yoshimura, Makoto Nakahara, Takatoshi Kira, Daisuke Ikesugi, Masaki Ban, Hiroshi Murata, Masaaki Kubo
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Publication number: 20030206264Abstract: The present invention has its object to provide a method of spraying particles by which predetermined quantities of particles can be disposed on specified electrodes, in particular a method of spraying particles by which spacers can be sprayed in interelectrode gaps selectively even in the case of substrates comprising pattern-forming transparent electrodes, such as those used in liquid crystal display devices, and a method of producing liquid crystal display devices of high contrast and high display uniformity by which spacers can be disposed in interelectrode gaps without sacrificing the aperture ratio and by which spacers can be disposed on the substrate without irregularity to attain a uniform cell thickness over the whole substrate, as well as a particle spraying apparatus and a liquid crystal display device.Type: ApplicationFiled: June 12, 2003Publication date: November 6, 2003Applicants: Sharp Kabushiki Kaisha, Sekisui Chemical Co., Ltd.Inventors: Kazuya Yoshimura, Makoto Nakahara, Takatoshi Kira, Daisuke Ikesugi, Akihiko Tateno, Hiroyuki Nakatani, Masaki Ban, Hiroshi Murata, Masaaki Kubo
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Patent number: 6639644Abstract: This invention has its object to provide a method of liquid display device production which enables spacer disposition in interelectrode spaces not having electrode, namely at black matrix sites, in STN type and TFT type liquid crystal display devices and further enables even spacer disposition to attain a uniform cell thickness all over the substrate to thereby produce liquid crystal display devices of high contrast and high display uniformity stably and in good yields, with a reduced spray step tact time, as well as liquid crystal display devices produced by such method.Type: GrantFiled: October 18, 2000Date of Patent: October 28, 2003Assignees: Sekisui Chemical Co., Ltd., Sharp Kabushiki KaishaInventors: Akihiko Tateno, Hiroyuki Nakatani, Kazuya Yoshimura, Makoto Nakahara, Takatoshi Kira, Daisuke Ikesugi, Masaki Ban, Hiroshi Murata, Masaaki Kubo
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Patent number: 6618112Abstract: The present invention has its object to provide a method of spraying particles by which predetermined quantities of particles can be disposed on specified electrodes, in particular a method of spraying particles by which spacers can be sprayed in interelectrode gaps selectively even in the case of substrates comprising pattern-forming transparent electrodes, such as those used in liquid crystal display devices, and a method of producing liquid crystal display devices of high contrast and high display uniformity by which spacers can be disposed in interelectrode gaps without sacrificing the aperture ratio and by which spacers can be disposed on the substrate without irregularity to attain a uniform cell thickness over the whole substrate, as well as a particle spraying apparatus and a liquid crystal display device.Type: GrantFiled: December 1, 2000Date of Patent: September 9, 2003Assignees: Sharp Kabushiki Kaisha, Sekisui Chemical Co., Ltd.Inventors: Kazuya Yoshimura, Makoto Nakahara, Takatoshi Kira, Daisuke Ikesugi, Akihiko Tateno, Hiroyuki Nakatani, Masaki Ban, Hiroshi Murata, Masaaki Kubo
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Publication number: 20020195079Abstract: In a direct injection spark-ignition engine with a swirl fuel injector, an orifice nozzle tip has an inclined surface that is formed on the lower end face of the orifice nozzle tip and inclined by a predetermined inclination angle with respect to a reference plane normal to an orifice axis. The predetermined inclination angle is based on both an in-cylinder pressure dependent spray angle during the stratified-charge late fuel injection on the compression stroke and an in-cylinder pressure dependent spray angle during the homogeneous-charge early fuel injection on the intake stroke. The nozzle hole is formed within the inclined surface of the predetermined inclination angle.Type: ApplicationFiled: June 7, 2002Publication date: December 26, 2002Applicant: NISSAN MOTOR CO., LTD.Inventor: Masaaki Kubo
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Publication number: 20020063171Abstract: In a fuel injector with a swirler creating swirling fuel flow, a projected portion is formed as an orifice nozzle tip at an opening end of a nozzle hole. The projected portion includes a first sloped portion having a sloped surface whose height h1, measured in the orifice-axis direction, is dimensioned to gradually increase along the swirling-fuel-flow direction, and a second sloped portion having a sloped surface whose height h2, measured in the orifice-axis direction, is dimensioned to gradually decrease along the swirling-fuel-flow direction. In a &thgr;-h coordinate system constructed by a &thgr;-axis representing the angular position of the orifice nozzle tip and a h-axis representing the axial height of the projected portion, the projected portion is dimensioned so that the absolute value |dh1/d&thgr;|max of the gradient of the first sloped surface is dimensioned to be less than the absolute value |dh2/d&thgr;|max of the gradient of the second sloped surface.Type: ApplicationFiled: October 22, 2001Publication date: May 30, 2002Applicant: NISSAN MOTOR CO., LTD.Inventor: Masaaki Kubo
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Patent number: 5791915Abstract: An IC socket includes a retaining cover adapted to be closed onto a socket main body, and an IC retaining member when the cover is closed, the IC retaining member presses against an IC which, in turn presses against IC contacts mounted on the socket main body. In addition, the IC socket includes a spring for idly supporting the IC retaining member on the retaining cover via a shaft, and moreover, biasing the IC retaining member in the IC retaining direction. The spring is borne by the shaft, and a part of the reactive force of the contacts arising at the time of retaining the IC with the IC retaining member is absorbed in the spring.Type: GrantFiled: March 25, 1996Date of Patent: August 11, 1998Assignee: Yamaichi Electronics Co., Ltd.Inventor: Masaaki Kubo
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Patent number: 5576937Abstract: A connector for protecting an IC comprising a connector body, a closed plate, and an annular air-tight sealing material. An air-tight chamber is formed centrally of the annular air-tight sealing material by compressing the annular air-tight sealing material between the connector main body and the closed plate. The IC is received in the air-tight chamber so as to be electrically contacted with the connector body.Type: GrantFiled: April 19, 1994Date of Patent: November 19, 1996Assignee: Yamaichi Electronics Co., Ltd.Inventor: Masaaki Kubo
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Patent number: 5562492Abstract: In an IC socket, a downward movement of a pressing member imparts a downwardly directed force to an IC body or IC terminal portions and causes a resilient downward shifting of contact point portions of contacts which are implanted in a socket body, and by reaction thereof, a contact pressure between the contact point portions and the IC terminal portions is realized. A contact aligning structure for this IC socket includes a side pressing portion which is caused to press the contact point portions so as to be resiliently forwardly shifted when the pressing member is moved downwardly, an aligning surface for aligning the contact point portions being defined by that surface of the side pressing portion which is caused to press the contact point portions.Type: GrantFiled: November 9, 1994Date of Patent: October 8, 1996Assignee: Yamaichi Electronics Co., Ltd.Inventor: Masaaki Kubo
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Patent number: 5531603Abstract: In an IC socket including an IC placing section at a generally central area thereof and a large number of contacts arranged in an array along a pair of opposing sides of the IC placing section, so as to be electrically and physically connected to leads of an IC placed on a socket body, a device for aligning contacting portions of the contacts in the IC socket comprising a ruler plate mounted on the IC placing section, the ruler plate being provided at a pair of opposing sides thereof with grooves or holes for allowing contacting portions of the contacts to be loosely inserted therein and partition walls for isolating the respective adjacent grooves or holes, the ruler plate being fitted to the IC placing section and firmly secured to a predetermined position through positioning means, the contacting portions being inserted respectively in the grooves or holes and side surfaces of the contacting portions being abutted with inner surfaces of the ruler walls at the position where the ruler plate is firmly secureType: GrantFiled: November 9, 1994Date of Patent: July 2, 1996Assignee: Yamaichi Electronics Co., Ltd.Inventors: Masaaki Kubo, Nanahiro Hayakawa