Patents by Inventor Akihiro Yamamoto

Akihiro Yamamoto 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).

  • Patent number: 7876386
    Abstract: In a liquid crystal display device of the present invention, when a display voltage is applied to picture element electrodes, each picture element electrode forms a plurality of domains in which liquid crystal molecules align themselves in different directions. The picture element electrodes are formed such that their edge portions on the opposite sides of a picture-element-electrode aperture portion formed between the picture element electrodes face parallel to each other with a certain interval. A source bus line is provided along the picture-element-electrode aperture portion formed between the picture element electrodes. The source bus line is disposed beneath the picture element electrodes and at the edge portions of the picture element electrodes by overlapping therewith in a direction of thickness.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: January 25, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masumi Kubo, Akihiro Yamamoto
  • Publication number: 20100309400
    Abstract: A liquid crystal display device of the present invention includes a picture element electrode in a first substrate on the liquid crystal layer side in each picture element region, and a counter electrode in a second substrate opposing the picture element electrode via the liquid crystal layer. In each picture element region, the picture element electrode includes a solid portion including multiple unit solid portions; and the liquid crystal layer is in a vertical orientation state with no voltage, and upon voltage application, forms a liquid crystal domain taking a radially-inclined orientation in positional correspondence with each unit solid portion by an oblique electric field produced near the unit solid portion. The liquid crystal display device further includes a storage capacitor connected electrically in parallel to a liquid crystal capacitor, and the storage capacitor is at least partially located in an area with no solid portion of the first substrate.
    Type: Application
    Filed: August 5, 2010
    Publication date: December 9, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masumi Kubo, Akihiro Yamamoto
  • Publication number: 20100283947
    Abstract: A liquid crystal display device of the present invention includes: a liquid crystal display panel; and first and second light diffusing layers, each of which has a first major surface and a second major surface and each of which is arranged such that the first major surface opposes a viewer side surface of the liquid crystal display panel. Each of the first and second light diffusing layers includes a first region formed of a first substance which has a first refractive index N1 and a plurality of second regions formed of a second substance which has a second refractive index N2 (<N1). The plurality of second regions are arranged in the first region at a predetermined pitch P in one direction in a plane parallel to the second major surface. Each of the plurality of second regions forms a plurality of interfaces with the first region, the interfaces being inclined by ?° from the normal of the second major surface.
    Type: Application
    Filed: November 21, 2008
    Publication date: November 11, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yusuke Nishihara, Iori Aoyama, Tokio Taguchi, Akihiro Yamamoto, Masumi Kubo
  • Patent number: 7825251
    Abstract: The present invention provides a process for producing carbostyril derivatives (I) which are known to be useful as medical drug such as antithrombotic agent, cerebral circulation improver, anti-inflammatory agent, antiulcer agent, etc. in a high yield and a high purity. The carbostyril derivatives (I) can be produced by reacting a carbostyril derivative (II) with a tetrazole derivative (III) in the presence of a phase transfer catalyst.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: November 2, 2010
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Shinji Aki, Muneaki Kurimura, Takao Nishi, Junichi Minamikawa, Michiaki Tominaga, Norihiro Fukuyama, Akihiro Yamamoto
  • Publication number: 20100273600
    Abstract: An automatic transmission includes first to third single-pinion planetary gearsets. The second ring gear and third sun gear are coupled to the first carrier and first ring gear respectively to constitute first and second rotor units. Input and output shafts are coupled to the second sun gear and third ring gear respectively. A first clutch selectively holds the first sun gear to the third carrier. A first brake selectively holds the first sun gear stationary. A second clutch selectively holds the second sun gear to the third carrier. A third clutch selectively holds the second carrier to the second rotor unit. A fourth clutch selectively holds the second carrier to the third carrier. A second brake selectively holds the first rotor unit stationary. At least eight gear ratios and one reverse gear ratio are obtained by simultaneous application of three of the clutches and brakes.
    Type: Application
    Filed: March 25, 2010
    Publication date: October 28, 2010
    Inventors: Kazuaki AOTA, Yukiyoshi Inuta, Akihiro Yamamoto, Naoki Kobayashi, Takayuki Okuda, Peter Tenberge, Joerg Mueller, Rico Resch
  • Publication number: 20100273601
    Abstract: An automatic transmission including three single pinion planetary gearsets and six friction elements, in which an input shaft is always connected to a first sun gear of a first planetary gearset, the output shaft is always connected to a second ring gear of a second planetary gearset, a third sun gear of a third planetary gearset is always kept in a fixed state relative to a transmission case of the automatic transmission, a first ring gear of the first planetary gearset and a third pinion carrier of the third planetary gearset are always connected to each other and constitute a first rotary member, and at least eight forward speeds and one reverse speed are respectively established by simultaneous engagements of three friction elements selected from the six friction elements.
    Type: Application
    Filed: March 25, 2010
    Publication date: October 28, 2010
    Inventors: Kazuaki AOTA, Yukiyoshi Inuta, Akihiro Yamamoto, Naoki Kobayashi, Takayuki Okuda, Peter Tenberge, Joerg Mueller, Rico Resch
  • Patent number: 7808905
    Abstract: Stream data and a command output from a drive device are individually packetized in a first packet processing unit. The stream data packet and the command packet are further multiplexed, and the multiplexed data is transmitted to a transmission path using a synchronous channel. When the command output from a decoding unit is packetized in a second packet processing unit, it is packetized by multiplexing flow control information output from the decoding unit, and is transmitted to the first packet processing unit using a synchronous channel of the transmission path. Based on this flow control information, reading/writing by the drive device is controlled.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: October 5, 2010
    Assignee: Panasonic Corporation
    Inventors: Susumu Ibaraki, Akihiro Yamamoto, Toshiaki Mori, Toshikazu Hattori
  • Publication number: 20100245738
    Abstract: A liquid crystal display device of the present invention includes a liquid crystal display panel, and a light diffusing layer which has first and second major surfaces and which is arranged such that the first major surface opposes a viewer side surface of the liquid crystal display panel. The light diffusing layer includes a first region formed of a first substance which has a first refractive index N1 and a plurality of second regions formed of a second substance which has a second refractive index N2 (<N1). The second regions are arranged in the first region at a predetermined pitch P in one direction in a plane parallel to the second major surface, each of the second regions forms interfaces with the first region, the interfaces being inclined by ?° from a normal of the second major surface. ?B which is expressed by ?B=tan?1 (a/Lb) is not more than 1.
    Type: Application
    Filed: November 21, 2008
    Publication date: September 30, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yusuke Nishihara, Iori Aoyama, Tokio Taguchi, Akihiro Yamamoto, Masumi Kubo
  • Publication number: 20100245736
    Abstract: A light diffusing layer 10 included in a light diffusing sheet and a liquid crystal display device of the present invention includes a plurality of low refractive index regions (second regions) 14 formed of a substance which has a low refractive index (second substance). The shape of each of the low refractive index regions in a cross section perpendicular to the major surface is approximated to an isosceles triangle where the base is on the viewer side and the vertex is on the liquid crystal display panel side. The plurality of low refractive index regions are arranged in a high refractive index region (first region) formed of a high refractive index substance (first substance) at a predetermined pitch P in at least one direction in a plane parallel to the major surface.
    Type: Application
    Filed: September 26, 2008
    Publication date: September 30, 2010
    Inventors: Yusuke Nishihara, lori Aoyama, Tokio Taguchi, Akihiro Yamamoto, Masumi Kubo
  • Publication number: 20100245737
    Abstract: A light diffusing layer 10 included in a light diffusing sheet and a liquid crystal display device of the present invention includes a plurality of low refractive index regions (second regions) 14 formed of a substance which has a low refractive index (second substance). The shape of each of the low refractive index regions in a cross section perpendicular to the major surface is approximated to an isosceles triangle where the base is on the viewer side and the vertex is on the liquid crystal display panel side. The plurality of low refractive index regions are arranged in a high refractive index region (first region) formed of a high refractive index substance (first substance) at a predetermined pitch P in at least one direction in a plane parallel to the major surface.
    Type: Application
    Filed: September 26, 2008
    Publication date: September 30, 2010
    Inventors: Iori Aoyama, Tokio Taguchi, Yusuke Nishihara, Akihiro Yamamoto, Kubo Masumi
  • Patent number: 7791676
    Abstract: A liquid crystal display device of the present invention includes a picture element electrode in a first substrate on the liquid crystal layer side in each picture element region, and a counter electrode in a second substrate opposing the picture element electrode via the liquid crystal layer. In each picture element region, the picture element electrode includes a solid portion including multiple unit solid portions; and the liquid crystal layer is in a vertical orientation state with no voltage, and upon voltage application, forms a liquid crystal domain taking a radially-inclined orientation in positional correspondence with each unit solid portion by an oblique electric field produced near the unit solid portion. The liquid crystal display device further includes a storage capacitor connected electrically in parallel to a liquid crystal capacitor, and the storage capacitor is at least partially located in an area with no solid portion of the first substrate.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: September 7, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masumi Kubo, Akihiro Yamamoto
  • Patent number: 7755087
    Abstract: The liquid crystal display device of this invention includes a plurality of picture element regions each defined by a first electrode provided on a face of a first substrate facing a liquid crystal layer and a second electrode provided on a second substrate so as to oppose the first electrode via the liquid crystal layer sandwiched therebetween. In each of the picture element regions, the first electrode has a plurality of openings and a solid portion, the liquid crystal layer is in a vertical orientation state when no voltage is applied between the first electrode and the second electrode, and when a voltage is applied between the first electrode and the second electrode, a plurality of liquid crystal domains each in a radially-inclined orientation state are respectively formed in the plurality of openings and the solid portion by inclined electrode fields generated at respective edge portions of the openings of the first electrode.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: July 13, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masumi Kubo, Akihiro Yamamoto, Takashi Ochi, Tetsuhiro Yamaguchi, Naoshi Yamada, Katsuhiko Morishita, Kiyoshi Ogishima, Kazuhiro Maekawa
  • Publication number: 20100157182
    Abstract: The liquid crystal display device of this invention includes a plurality of picture element regions each defined by a first electrode provided on a face of a first substrate facing a liquid crystal layer and a second electrode provided on a second substrate so as to oppose the first electrode via the liquid crystal layer sandwiched therebetween. In each of the picture element regions, the first electrode has a plurality of openings and a solid portion, the liquid crystal layer is in a vertical orientation state when no voltage is applied between the first electrode and the second electrode, and when a voltage is applied between the first electrode and the second electrode, a plurality of liquid crystal domains each in a radially-inclined orientation state are respectively formed in the plurality of openings and the solid portion by inclined electrode fields generated at respective edge portions of the openings of the first electrode.
    Type: Application
    Filed: January 19, 2010
    Publication date: June 24, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masumi Kubo, Akihiro Yamamoto, Takashi Ochi, Tetsuhiro Yamaguchi, Naoshi Yamada, Katsuhiko Morishita, Kiyoshi Ogishima, Kazuhiro Maekawa
  • Patent number: 7742835
    Abstract: A profile control method for controlling a profile in the width direction of a sheet by using a plurality of actuators, includes calculating an envelope profile connecting local peaks of the profile; and calculating a manipulated value of each actuator with the objective of optimizing 2? of the profile and the envelope profile.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: June 22, 2010
    Assignee: Yokogawa Electric Corporation
    Inventors: Takashi Sasaki, Akimichi Noyori, Akihiro Yamamoto
  • Publication number: 20100134738
    Abstract: A liquid crystal display device according to the present invention includes: a vertical alignment liquid crystal layer; first and second electrodes arranged on one surface of first and second substrates to face the liquid crystal layer; and first and second alignment films arranged on the first and second electrodes, respectively, in contact with the liquid crystal layer. The first alignment film has been subjected to an optical alignment treatment by obliquely irradiating a first alignment film material, having a photosensitive wavelength within the wavelength range of 250 nm to 380 nm, with light including the photosensitive wavelength. The device further includes: a metal layer arranged between the first alignment film and the first substrate; and a first resin layer arranged between the metal layer and the first alignment film.
    Type: Application
    Filed: January 28, 2010
    Publication date: June 3, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yoshito Hashimoto, Masumi Kubo, Akihiro Yamamoto
  • Publication number: 20100088445
    Abstract: The present invention provides a data processing system having excellent immediacy of interrupting process. Different interrupt request signals are supplied from a circuit module which can be commonly used by a plurality of central processing units to a plurality of interrupt controllers assigned to central processing units, respectively. In response to the input interrupt request signal, each of the interrupt controllers notifies the corresponding central processing unit of an interrupt. The circuit module selects an interrupt controller for supplying an interrupt request signal from the plural interrupt controllers. For example, the circuit module identifies a central processing unit which instructed a start request and supplies an interrupt request signal to an interrupt controller corresponding to the central processing unit. The burden of the interrupting process of the single central processing unit can be lessened.
    Type: Application
    Filed: September 12, 2009
    Publication date: April 8, 2010
    Inventors: Akihiro Yamamoto, Yasuhiko Hoshi, Hiroyuki Hamasaki
  • Publication number: 20100073606
    Abstract: An MVA-type LCD capable of displaying with a high contrast ratio is provided. An LCD according to the present invention is an MVA-type LCD including a stripe-shaped rib 21b provided on a first electrode 11 of a liquid crystal layer and a stripe-shaped slit 22 formed in a second electrode 12 of the liquid crystal layer. The rib 21b has a side face whose taper angle in a cross section which is orthogonal to an azimuth direction that the rib 21 extends is 18° or less, and is made of a material such that a film of the material with a thickness corresponding to the height of the rib has an OD value of 0.8 or more.
    Type: Application
    Filed: June 25, 2007
    Publication date: March 25, 2010
    Inventors: Yusuke Nishihara, Akihiro Yamamoto, Masumi Kubo, Kenji Okamoto
  • Patent number: 7679703
    Abstract: A liquid crystal display device according to the present invention includes: a vertical alignment liquid crystal layer; first and second electrodes arranged on one surface of first and second substrates to face the liquid crystal layer; and first and second alignment films arranged on the first and second electrodes, respectively, in contact with the liquid crystal layer. The first alignment film has been subjected to an optical alignment treatment by obliquely irradiating a first alignment film material, having a photosensitive wavelength within the wavelength range of 250 nm to 380 nm, with light including the photosensitive wavelength. The device further includes: a metal layer arranged between the first alignment film and the first substrate; and a first resin layer arranged between the metal layer and the first alignment film.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: March 16, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshito Hashimoto, Masumi Kubo, Akihiro Yamamoto
  • Publication number: 20090284703
    Abstract: A liquid crystal display device includes: a vertical alignment liquid crystal layer; first and second substrates facing each other with the liquid crystal layer interposed; first and second electrodes arranged on the first and second substrates to face the liquid crystal layer; and at least one alignment film in contact with the liquid crystal layer. A pixel region includes a first liquid crystal domain in which liquid crystal molecules are tilted in a first direction around the center of a plane, and approximately at the middle of the thickness, of the liquid crystal layer responsive to a voltage applied. The first liquid crystal domain is close to at least a part of an edge of the first electrode. The part includes a first edge portion in which an azimuthal direction, perpendicular to the part and pointing toward the inside of the first electrode, defines an angle greater than 90 degrees to the first direction.
    Type: Application
    Filed: June 9, 2006
    Publication date: November 19, 2009
    Inventors: Akihiro Shoraku, Toshihide Tsubata, Koichi Miyachi, Iichiro Inoue, Akihiro Yamamoto, Yoshito Hashimoto, Masumi Kubo, Akihito Jinda
  • Patent number: 7617025
    Abstract: An electric oil pump control system for a hybrid vehicle which has an engine and a first electric motor as driving sources; a hydraulic automatic transmission connected between the engine and drive wheels of the vehicle; an electric oil pump for generating an oil pressure necessary for performing gear change of the transmission. The hybrid vehicle can run by at least one of the engine and the first electric motor in accordance with a driving state of the vehicle. The control system has a control device for driving the electric oil pump so as to generate an oil pressure supplied to the hydraulic automatic transmission, wherein the control device drives the electric oil pump when the hybrid vehicle runs with the engine and the electric oil pump which are stopped, in accordance with a predetermined condition by which it is determined that the electric oil pump should be driven.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: November 10, 2009
    Assignee: Honda Motor Co., Ltd.
    Inventors: Akihiro Yamamoto, Kazuhisa Yamamoto