Patents by Inventor Hirokazu Matsui

Hirokazu Matsui 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: 20110213086
    Abstract: The present invention provides a thermoplastic resin composition comprising a polysulfone(A) having oxygen-containing groups selected from among hydroxyl groups and oxyanion groups, a fluororesin(B) and a thermoplastic resin (C) other than the polysulfone (A) and the fluororesin (B). The composition has high slidability. By molding the composition, a molded article with high slidability can be obtained.
    Type: Application
    Filed: February 24, 2011
    Publication date: September 1, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Hirokazu MATSUI, Hiroshi HARADA
  • Publication number: 20110210290
    Abstract: The present invention provides a liquid-crystalline polymer composition comprising: a liquid-crystalline polymer and an aromatic polysulfone resin having oxygen-containing groups selected from among hydroxyl groups and oxyanion groups in an amount of 6×10?5 or more in number per 1 g of the polysulfone resin. The composition can suppress rise of specific gravity and reduction of heat resistance and can stably provide a molded article having excellent mechanical characteristics.
    Type: Application
    Filed: February 24, 2011
    Publication date: September 1, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Hiroshi HARADA, Hirokazu MATSUI
  • Publication number: 20110103092
    Abstract: A light source receiver 31 is disposed adjacent to an incident end face 11 of a light guiding plate 1 using the light source holder 31 for receiving the LED unit 4 and a light source holder 3 formed in an L-shape in a cross section having a standing plate 34 at one end of the light source holder 31, the standing plate 34 is disposed outside of a reflective plate 2 laminated on the light guiding plate 1, and a bolt 81 via a long hole 35 of the standing plate 34 is screwed into an insert-nut 8 of the light guiding plate 1 via a clearance hole 21 of the reflective plate 2, thereby the standing plate 34 follows the heat expansion or contraction of the light guiding plate 1 except the reflective plate 2. A relative position between the incident end face 11 of the light guiding plate 1 and the light source receiver 31 of the light source holder 3 is always constant, and the LED unit 4 is prevented from being damaged.
    Type: Application
    Filed: September 30, 2010
    Publication date: May 5, 2011
    Inventor: Hirokazu MATSUI
  • Patent number: 7883252
    Abstract: A wall-mounted display device, which uses a light guiding panel for an LED light source includes display body 1 with an optical panel 11 housed in a box-like optical diffusion case 15 with flanges 14 formed on the periphery of a substrate 13. A reflection case 12 fits in the optical diffusion case 15, which has a U-shaped cross section and flanges 14 formed on the upper and lower ends of the substrate 16. LED light sources 18 are respectively disposed on the right and left flanges 14 of the reflection case 12 to supply incident light into the light guiding panel 11. Frame members 22, each having a U-shaped cross section, fit in the upper and lower ends of the display body 1, respectively. Each U-shaped frame member is securely fixed with a screw 21 inserted through the rear surface of the frame member, in such a way that the screw 21 is not exposed from the front side of the display body.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: February 8, 2011
    Inventors: Hirokazu Matsui, Shinzo Murase
  • Patent number: 7795240
    Abstract: A ?-glucan derivative comprising a ?-glucan residue of three or more glucose residues and, chemically bonded to the ?-glucan residue, a non-reducing sugar residue.
    Type: Grant
    Filed: November 26, 2004
    Date of Patent: September 14, 2010
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Kazuhiro Obae, Ichiro Ibuki, Hirokazu Matsui, Hiroyuki Ito, Kenji Watanabe
  • Patent number: 7759888
    Abstract: There is provided an AC motor controller capable of detecting an abnormal state of a motor cable while an AC motor is operating without using a special circuit but using a processor. The AC motor controller includes an AC motor; an inverter for driving the AC motor with a motor current through a motor cable; and a motor current detector for detecting the motor current flowing in the motor cable of the AC motor, in which a processor detects an abnormal state of the motor cable such as an inter-phase short circuit and an open circuit based on the motor current detected by the motor current detector.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: July 20, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Hirokazu Matsui, Takefumi Sawada, Shigeyuki Yoshihara
  • Publication number: 20100148391
    Abstract: A biodegradable filament of polyglycolic acid resin having practical properties represented by high tensile strength and knot strength is produced. A polyglycolic acid resin having a residual monomer content of below 0.5 wt. % is melt-spun, quenched in a liquid bath of at most 10° C. and then stretched in a liquid bath of 60-83° C. to produce a polyglycolic acid resin filament having a tensile strength of at least 750 MPa and a knot strength of at least 600 MPa.
    Type: Application
    Filed: February 17, 2010
    Publication date: June 17, 2010
    Inventors: Satoshi Hashimoto, Kazuyuki Yamane, Juichi Wakabayashi, Hirokazu Matsui
  • Publication number: 20090294729
    Abstract: The present invention comprises a liquid-crystalline polymer composition comprising a nanostructured hollow-carbon material and a liquid-crystalline polymer. The nanostructured hollow-carbon material may comprises particles, each particle of which is selected from the group consisting of a particle which is composed of a carbon part and a hollow part and has a structure that the hollow part is entirely enclosed by the carbon part; and a particle which is composed of a carbon part and a hollow part and has a structure that the hollow part is partly enclosed by the carbon part.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 3, 2009
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Hiroshi HARADA, Hirokazu MATSUI
  • Patent number: 7597957
    Abstract: [Object] In a fishing line for capturing large fishes made by a polyvinylidenefluoride resin filament, a polyvinylidenefluoride resin filament wherein even by enhancing the tensile strength at break by enlarging the filament diameter than that of usual fishing line, an appropriate tensile elongation at break can be obtained, so that the rapid and enormous impact generated when large fishes have taken the bait can be reduced, and that has a homogenous fiber structure which generates almost no inner cavity when forming a filament with a large diameter, is developed.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: October 6, 2009
    Assignee: Kureha Corporation
    Inventors: Hirokazu Matsui, Hiroshi Ochiai, Masaru Satou, Satoshi Hashimoto, Toshiya Mizuno
  • Publication number: 20090133947
    Abstract: An object of the present invention is to provide a motor control apparatus that can perform an abnormality diagnosis of current sensors and achieve cost reduction. When the outputs from three current sensors, which detect individual phase currents of a 3-phase AC current supplied from an inverter to a 3-phase AC motor, indicate that the sum of the individual phase currents of the 3-phase AC current is greater than a predetermined value, a sensor abnormality judgment unit of a motor control unit judges that one of the three current sensors is abnormal. The sensor abnormality judgment unit identifies an abnormal current sensor, which is one of the three current sensors, and performs calculations in accordance with the remaining two normal current sensors to output the current in the phase detected by the abnormal current sensor.
    Type: Application
    Filed: November 14, 2008
    Publication date: May 28, 2009
    Applicant: HITACHI, LTD.
    Inventors: Shigeyuki YOSHIHARA, Hirokazu Matsui, Kohei Myoen, Toshisada Mitsui
  • Publication number: 20090059446
    Abstract: There is provided an AC motor controller capable of detecting an abnormal state of a motor cable while an AC motor is operating without using a special circuit but using a processor. The AC motor controller includes an AC motor; an inverter for driving the AC motor with a motor current through a motor cable; and a motor current detector for detecting the motor current flowing in the motor cable of the AC motor, in which a processor detects an abnormal state of the motor cable such as an inter-phase short circuit and an open circuit based on the motor current detected by the motor current detector.
    Type: Application
    Filed: April 15, 2005
    Publication date: March 5, 2009
    Applicant: Hitachi, Ltd.
    Inventors: Hirokazu Matsui, Takefumi Sawada, Shigeyuki Yoshihara
  • Publication number: 20090052206
    Abstract: A wall-mounted display device, which uses a light guiding panel for an LED light source includes display body 1 with an optical panel 11 housed in a box-like optical diffusion case 15 with flanges 14 formed on the periphery of a substrate 13. A reflection case 12 fits in the optical diffusion case 15, which has a U-shaped cross section and flanges 14 formed on the upper and lower ends of the substrate 16. LED light sources 18 are respectively disposed on the right and left flanges 14 of the reflection case 12 to supply incident light into the light guiding panel 11. Frame members 22, each having a U-shaped cross section, fit in the upper and lower ends of the display body 1, respectively. Each U-shaped frame member is securely fixed with a screw 21 inserted through the rear surface of the frame member, in such a way that the screw 21 is not exposed from the front side of the display body.
    Type: Application
    Filed: August 12, 2008
    Publication date: February 26, 2009
    Inventors: Hirokazu Matsui, Shinzo Murase
  • Publication number: 20080155791
    Abstract: To provide a knotless cord that is capable of exerting sufficient tensile strength of a fibrous body. A knotless cord has a sleeve and a fibrous body inserted into the sleeve, wherein the sleeve and the fibrous body are connected to each other by applying tension in a longitudinal direction of the sleeve and then tightening the sleeve. Moreover, in the knotless cord a locking portion for preventing the fibrous body from slipping out of the sleeve is provided in at least two sections (first locking portion, second locking portion). Therefore, stress generated by applying tension is dispersed throughout the entire fibrous body, while preventing the fibrous body from slipping out of the sleeve, whereby stress concentration occurring in each locking portion is alleviated.
    Type: Application
    Filed: November 29, 2007
    Publication date: July 3, 2008
    Inventors: Hirokazu Matsui, Masaru Satou, Satoshi Hashimoto, Toru Nakamura
  • Patent number: D568823
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: May 13, 2008
    Assignee: Nintendo Co., Ltd.
    Inventors: Kenichiro Ashida, Junji Takamoto, Yoshitomo Goto, Masato Ibuki, Shinji Yamamoto, Hirokazu Matsui, Daisuke Kumazaki, Fumiyoshi Suetake, Akiko Suga
  • Patent number: D575284
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: August 19, 2008
    Assignee: Nintendo Co., Ltd.
    Inventors: Kenichiro Ashida, Junji Takamoto, Masato Ibuki, Shinji Yamamoto, Hirokazu Matsui, Daisuke Kumazaki, Akiko Suga
  • Patent number: D575285
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: August 19, 2008
    Assignee: Nintendo Co., Ltd.
    Inventors: Kenichiro Ashida, Junji Takamoto, Masato Ibuki, Shinji Yamamoto, Hirokazu Matsui, Daisuke Kumazaki, Akiko Suga
  • Patent number: D576624
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: September 9, 2008
    Assignee: Nintendo Co., Ltd.
    Inventors: Kenichiro Ashida, Junji Takamoto, Masato Ibuki, Shinji Yamamoto, Hirokazu Matsui, Daisuke Kumazaki, Akiko Suga
  • Patent number: D576686
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: September 9, 2008
    Assignee: Nintendo Co., Ltd.
    Inventors: Kenichiro Ashida, Masato Ibuki, Shinji Yamamoto, Hirokazu Matsui, Akiko Suga
  • Patent number: D577025
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: September 16, 2008
    Assignee: Nintendo Co., Ltd.
    Inventors: Kenichiro Ashida, Junji Takamoto, Masato Ibuki, Shinji Yamamoto, Hirokazu Matsui, Daisuke Kumazaki, Akiko Suga
  • Patent number: D579015
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: October 21, 2008
    Assignee: Nintendo Co., Ltd.
    Inventors: Kenichiro Ashida, Masato Ibuki, Shinji Yamamoto, Hirokazu Matsui, Akiko Suga