Patents by Inventor Toshihiro Matsumoto

Toshihiro Matsumoto 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).

  • Publication number: 20160197530
    Abstract: Insulator that forms an insulating layer on a surface of a plurality of stacked stator cores includes protruding part extending from an outer circumference of stator cores on a substantially same face as one end face of stator cores in a stacking direction. Protruding part includes hooks that fixedly holds connector having a plurality of connector terminals for feeding power from outside. Connector is fixedly held by hooks, winding is wound around each slot of stator cores via insulator, and connector terminals are fixedly press-fitted to connector. A tip of each of connector terminals on a side of winding is bent into a substantially L-shape, winding end in each phase of winding is directly tied to L-shaped tip of connector terminal and connected thereto by soldering.
    Type: Application
    Filed: September 16, 2014
    Publication date: July 7, 2016
    Inventors: KENJI FUJII, TOSHIHIRO MATSUMOTO, SATORU MURAO
  • Patent number: 9274375
    Abstract: A liquid crystal display panel includes a metal electrode, a transparent electrode, an interlayer insulating film, and a comb-shaped electrode. Distorted horizontal electric fields are generated in order to distort the orientation of liquid crystal molecules. Accordingly, it is possible to achieve a transflective liquid crystal display device that has high transmittance, reflectance, and yield, and that can suppress display defects such as screen burn-in without using a panel gap adjusting structure, a driving method that respectively applies different electric fields to the reflective region and the transmissive region, or a multi-L/S structure.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: March 1, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuichi Kawahira, Toshihiro Matsumoto, Mitsuhiro Murata, Yosuke Iwata
  • Patent number: 9240575
    Abstract: A power supply apparatus includes a formed article having two or more separate accommodating cavities and an electrode group that comprises a rolled up laminate and is accommodated in each of the accommodating cavities, the laminate composed of a cathode and an anode, each having a current collector and mixture layers disposed on the current collector, and a separator sandwiched between the cathode and the anode. An electrolytic solution is accommodated in each of the accommodating cavities, the electrolytic solution, and the anode or the cathode contact the formed article.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: January 19, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshio Kanata, Toshihiro Matsumoto
  • Patent number: 9153825
    Abstract: A fuel cell includes: a membrane electrolyte assembly which includes a polymer electrolyte membrane and a pair of catalyst electrodes between which the polymer electrolyte membrane is held and separators between which the membrane electrolyte assembly is held. The first separator includes first gas flow channels and second gas flow channels which are adjacent to the first gas flow channels, the first and second gas flow channels supplying an oxidizing gas or a fuel gas to the membrane electrolyte assembly. The first and second gas flow channels are parallel to each other and are alternately arranged, the first gas flow channels are larger in cross sectional area than the second gas flow channels.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: October 6, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takashi Nakagawa, Toshihiro Matsumoto, Shinsuke Takeguchi, Miyuki Yoshimoto
  • Publication number: 20150180383
    Abstract: Air blower equipped with a brushless DC motor includes an inverter circuit, a drive logic controller, a duty indicator, a motor voltage detector, a motor current detector, and a correlation detector. A duty indicating value of the duty indicator is determined according to a value of the correlation detector.
    Type: Application
    Filed: July 16, 2013
    Publication date: June 25, 2015
    Inventor: Toshihiro Matsumoto
  • Patent number: 9034567
    Abstract: Provided is a method for manufacturing a liquid crystal display device that includes a photoalignment film. The photoalignment film is formed from a liquid crystal alignment agent, and aligns liquid crystal molecules horizontally to the main face of the at least one of the substrates. The liquid crystal alignment agent contains a solvent and at least two kinds of polyamic acids or their derivatives obtained by reacting diamine and tetracarboxylic dianhydride. At least two of the diamines and at least one of the tetracarboxylic dianhydrides are compounds represented by predetermined formulas. The method includes the steps of: (1) forming the film of the liquid crystal alignment agent; (2) pre-baking the film; (3) irradiating the pre-baked film with light; and (4) post-baking the irradiated film, the step (4) including an operation of post-baking the film multiple times at temperatures ranging from low to high temperatures.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: May 19, 2015
    Assignees: Sharp Kabushiki Kaisha, JNC Corporation
    Inventors: Isamu Miyake, Hiroaki Asagi, Toshihiro Matsumoto, Koichi Miyachi, Youichiro Ooki, Fumitaka Kondo
  • Patent number: 9005840
    Abstract: A fuel cell separator pair has first and second separators having front and back surfaces, a corrugated plate portion shaped in a wave form at the central portion, and a flat plate portion formed in the peripheral portion and surrounding the corrugated plate portion, wherein the corrugated plate portion of the front surface constitutes a reaction gas channel and the corrugated plate portion of the back surface constitutes a coolant channel. The back surfaces of the first and second separators are facing each other. The flat plate portions of the first and second separators are arranged on top of each other so as to be in contact with each other. The flat plate portion of the second separator protrudes toward the outside beyond the flat plate portion of the first separator.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: April 14, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takashi Morimoto, Toshihiro Matsumoto, Atusi Murata, Mitsuo Yoshimura, Yoko Yamamoto
  • Publication number: 20150056544
    Abstract: Provided is a method for manufacturing a liquid crystal display device that includes a photoalignment film. The photoalignment film is formed from a liquid crystal alignment agent, and aligns liquid crystal molecules horizontally to the main face of the at least one of the substrates. The liquid crystal alignment agent contains a solvent and at least two kinds of polyamic acids or their derivatives obtained by reacting diamine and tetracarboxylic dianhydride. At least two of the diamines and at least one of the tetracarboxylic dianhydrides are compounds represented by predetermined formulas. The method includes the steps of: (1) forming the film of the liquid crystal alignment agent; (2) pre-baking the film; (3) irradiating the pre-baked film with light; and (4) post-baking the irradiated film, the step (4) including an operation of post-baking the film multiple times at temperatures ranging from low to high temperatures.
    Type: Application
    Filed: August 21, 2014
    Publication date: February 26, 2015
    Inventors: Isamu MIYAKE, Hiroaki ASAGI, Toshihiro MATSUMOTO, Koichi MIYACHI, Youichiro OOKI, Fumitaka KONDO
  • Patent number: 8962104
    Abstract: The present invention provides a liquid crystal display panel that suppresses the temperature dependence of transmittance-gradation characteristics and thus overcomes problems in which significant changes in transmittance-gradation characteristics are caused by the effects of environmental temperature and a light source to lead to the degradation of display performance, and a liquid crystal display device including the liquid crystal display panel. The liquid crystal display panel of the present invention includes a liquid crystal medium containing a plurality of liquid crystal compounds each having a negative dielectric constant anisotropy, the liquid crystal medium being held between a first substrate and a second substrate that are located opposite each other, and a side of each of the substrates in contact with the liquid crystal medium having vertical alignment properties for the liquid crystal compounds.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: February 24, 2015
    Assignees: Sharp Kabushiki Kaisha, DIC Corporation
    Inventors: Toshihiro Matsumoto, Yuichi Kawahira, Masayuki Kanehiro, Shoutarou Kawakami, Gou Sudou
  • Patent number: 8962212
    Abstract: A polymer electrolyte fuel cell-use gasket, included in a polymer electrolyte fuel cell including a fuel cell stack is provided. In the fuel cell stack, a plurality of unit cell modules is stacked, and each of the unit cell modules includes sealing members disposed at circumference portions of respective front and back surfaces of a membrane electrode assembly, and paired separators sandwiching the membrane electrode assembly and the sealing members. The sealing members are integrally molded with the circumference portions of the respective front and back surfaces of the membrane electrode assembly. In each sealing member of the gasket, two rows of sealing lips are continuously provided in parallel to each other in an in-plane manner, and at least an outer one of the two rows of sealing lips is integrally formed, having a top side bell-shaped portion overlaid on a bottom side bell-shaped portion.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: February 24, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoko Yamamoto, Toshihiro Matsumoto, Takashi Morimoto, Mitsuo Yoshimura
  • Publication number: 20150042922
    Abstract: A liquid crystal display panel includes a metal electrode, a transparent electrode, an interlayer insulating film, and a comb-shaped electrode. Distorted horizontal electric fields are generated in order to distort the orientation of liquid crystal molecules. Accordingly, it is possible to achieve a transflective liquid crystal display device that has high transmittance, reflectance, and yield, and that can suppress display defects such as screen burn-in without using a panel gap adjusting structure, a driving method that respectively applies different electric fields to the reflective region and the transmissive region, or a multi-L/S structure.
    Type: Application
    Filed: February 20, 2013
    Publication date: February 12, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yuichi Kawahira, Toshihiro Matsumoto, Mitsuhiro Murata, Yosuke Iwata
  • Patent number: 8860916
    Abstract: The present invention provides a liquid crystal display device capable of preventing occurrence of flickers.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: October 14, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Mitsuhiro Murata, Shoichi Ishihara, Takehisa Sakurai, Shuichi Kozaki, Toshihiro Matsumoto, Yosuke Iwata
  • Patent number: 8728682
    Abstract: A fuel cell of the present invention includes: four fastening bolts which extend in a stack direction of a stack structure so as to penetrate through openings of end plates and nuts which are disposed at both ends of the fastening bolts and can adjust fastening forces applied by the fastening bolts to the stack structure sandwiched between the end plates. Each fastening bolt is disposed in the vicinity of an intermediate point of each side of the end plate. In an electrode facing region of the end plate, one or more springs are disposed on a first straight line passing through two fastening bolts one or more springs are disposed on a second straight line passing through two fastening bolts one or more springs are disposed on a third straight line passing through two fastening bolts and one or more springs are disposed on a fourth straight line passing through two fastening bolts.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: May 20, 2014
    Assignee: Panasonic Corporation
    Inventors: Hiroki Kusakabe, Toshihiro Matsumoto, Norihiko Kawabata, Yoshiki Nagao
  • Patent number: 8703360
    Abstract: In an electrode-membrane-frame assembly production method, a principal part is formed by an electrolyte membrane, first and second catalyst layers and first and second gas diffusion layers, with the first and second gas diffusion layers arranged with their outer circumferences at different positions. The principal part is arranged in a molding die with a circumferential region of the principal part disposed on a flat region of a primary molded body. A circumferential portion of one of the gas diffusion layers is arranged to oppose a flat region of the primary molded body so that the membrane is interposed between the circumferential portion and the flat region. Subsequently, a secondary molded body is formed to integrate with the primary molded body and the principal part.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: April 22, 2014
    Assignee: Panasonic Corporation
    Inventors: Yoichiro Tsuji, Toshihiro Matsumoto, Hiroki Kusakabe, Takashi Morimoto
  • Patent number: 8642230
    Abstract: An electrode-membrane-frame assembly for a polyelectrolyte fuel cell including of a membrane electrode assembly, a first frame body which has a separator-side surface on which a sealing member for sealing between the member and one separator and a membrane-side surface located on one surface of the peripheral edge portion of the membrane electrode assembly and is formed of a thermoplastic resin material, and a second frame body that has a separator-side surface on which a sealing member for sealing between the member and the other separator and a membrane-side surface located on the other surface of the peripheral edge portion of the membrane electrode assembly and is formed of a thermoplastic resin material and fitted to the first frame body holding the peripheral edge portion of the membrane electrode assembly between the second frame body and the first frame body.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: February 4, 2014
    Assignee: Panasonic Corporation
    Inventors: Tsutomu Kawashima, Norihiko Kawabata, Toshihiro Matsumoto, Atsushi Murata, Takashi Morimoto
  • Patent number: 8610653
    Abstract: A liquid crystal display panel and a liquid crystal display device in which a position of a singular point of pinwheel alignment is controlled, thereby suppressing rough-grained image and generation of image retention, and in which the response time is improved. A pair of substrates each include an electrode, at least one of the pair of substrates includes a vertical alignment film and a photopolymerized polymer, the electrode on one of the pair of substrates has such a shape as to provide pinwheel alignment of the liquid crystal molecules upon application of a voltage and is partly provided with openings for surrounding a singular point of the pinwheel alignment and keeping the singular point within the electrode.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: December 17, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kunihiro Tashiro, Takahiro Sasaki, Takayuki Hayano, Toshihiro Matsumoto
  • Publication number: 20130293817
    Abstract: A liquid crystal display device (10) includes an array substrate (20), a counter substrate (22), and a liquid crystal layer (60). Liquid crystal molecules (62) are initially aligned in the vertical direction, and the liquid crystal display device displays an image by controlling the liquid crystal molecules with a transverse electric field. A convex projection (42) is disposed on the array substrate (20), and a pixel electrode (24) is disposed to cover at least a part of a side surface (44) of the convex projection.
    Type: Application
    Filed: July 26, 2011
    Publication date: November 7, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yuichi Kawahira, Mitsuhiro Murata, Toshihiro Matsumoto
  • Publication number: 20130208213
    Abstract: The present invention provides a liquid crystal display panel that suppresses the temperature dependence of transmittance-gradation characteristics and thus overcomes problems in which significant changes in transmittance-gradation characteristics are caused by the effects of environmental temperature and a light source to lead to the degradation of display performance, and a liquid crystal display device including the liquid crystal display panel. The liquid crystal display panel of the present invention includes a liquid crystal medium containing a plurality of liquid crystal compounds each having a negative dielectric constant anisotropy, the liquid crystal medium being held between a first substrate and a second substrate that are located opposite each other, and a side of each of the substrates in contact with the liquid crystal medium having vertical alignment properties for the liquid crystal compounds.
    Type: Application
    Filed: September 13, 2011
    Publication date: August 15, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Toshihiro Matsumoto, Yuichi Kawahira, Masayuki Kanehiro, Shoutarou Kawakami, Gou Sudou
  • Publication number: 20130201434
    Abstract: The present invention provides a liquid crystal display device capable of preventing occurrence of flickers.
    Type: Application
    Filed: October 28, 2010
    Publication date: August 8, 2013
    Inventors: Mitsuhiro Murata, Shoichi Ishihara, Takehisa Sakurai, Shuichi Kozaki, Toshihiro Matsumoto, Yosuki Iwata
  • Publication number: 20130148066
    Abstract: A liquid crystal panel (2) comprises a liquid crystal layer (30) sandwiched between two substrates (10 and 20) and alignment films (15 and 22) in contact with a liquid crystal layer. The liquid crystal panel (2) is of a vertical alignment type which drives the liquid crystal layer (30) by a transverse electric field which is generated between an upper electrode (14) and an lower layer electrode (12). A polar anchoring strength of each of the alignment films (15 and 22) falls within a range from more than 5×10?6 J/m2 to not more than 1×10?4 J/m2.
    Type: Application
    Filed: July 15, 2011
    Publication date: June 13, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yosuke Iwata, Mitsuhiro Murata, Yasuhiro Nasu, Toshihiro Matsumoto