Patents by Inventor Tetsuya Ogawa

Tetsuya Ogawa 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: 20090208800
    Abstract: A fuel cell system includes a fuel cell stack, a heat exchanger, an evaporator, a reformer, and a combustor. A fluid unit including at least the heat exchanger, the evaporator, and the reformer is provided at one end of the fuel cell stack in a stacking direction. The combustor is provided inside the evaporator. The combustor has a combustion gas path for discharging a combustion gas produced in the combustor. The reformer is provided at a position in the middle of the combustion gas path.
    Type: Application
    Filed: May 16, 2007
    Publication date: August 20, 2009
    Applicant: HONDA MOTOR CO., LTD.
    Inventor: Tetsuya Ogawa
  • Patent number: 7559247
    Abstract: A pressure sensor for detecting pressure includes: a metallic diaphragm for receiving the pressure; four strain gauges providing a Wheatstone bridge, wherein each strain gauge outputs an electric signal corresponding to deformation of the diaphragm when the diaphragm is deformed by the pressure; and four semiconductor chips corresponding to four strain gauges, wherein each strain gauge is disposed in the semiconductor chip. Each semiconductor chip is mounted on the diaphragm.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: July 14, 2009
    Assignee: DENSO CORPORATION
    Inventors: Kiyoshi Otsuka, Osamu Itoh, Hiroshi Uchigashima, Kazuhiro Yoshino, Keiji Horiba, Tetsuya Ogawa
  • Patent number: 7449234
    Abstract: A sliding material consisting of a carbon-fiber reinforced carbon composite material containing fine particles of a simple substance of any of Group IV to Group VI elements or a carbide, a nitride or an oxide thereof.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: November 11, 2008
    Assignees: Mitsubishi Chemical Functional Products, inc., Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toshihiro Fukagawa, Akira Obara, Tetsuya Ogawa, Satoshi Yoshida, Yu Murai, Satoshi Takesako
  • Publication number: 20080169162
    Abstract: After chemical nickel plating has been applied onto a rotor-side surface 10 of a caliper 5a made of aluminum alloy and an opposite surface 11 disposed in an opposite side of the rotor-side surface, nickel-tungsten alloy plating is applied onto these both surfaces 10, 11. Then, gold plating is applied onto only the rotor-side surface 10. As a result, a reflectance to incident light on the rotor-side surface 10 is made higher than a reflectance to incident light on the opposite surface 11.
    Type: Application
    Filed: March 3, 2006
    Publication date: July 17, 2008
    Inventors: Toshiyuki Negishi, Hirobumi Niibori, Masao Sugaya, Takayuki Ichige, Tetsuya Noguchi, Tetsuya Ogawa
  • Patent number: 7363797
    Abstract: A device and a process for producing a corrugated plate having a plurality of bent-into-contact portions extending in parallel on one face of a metal plate employs a number of steps. A first pressing step sequentially molds a plurality of U-shaped bent portions in the metal plate. A second pressing step sequentially molds the bent-into-contact portions by sequentially crushing the plurality of U-shaped bent portions. In the first pressing step, the U-shaped bent portions are fed in a direction orthogonal to the direction of the U-shaped bent portions, and positioned, and are pressed in a state in which the position is released. In the second pressing step, another face of the metal plate is pressed flat while molding the bent-into-contact portions by pressing the U-shaped bent portions from both sides.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: April 29, 2008
    Assignees: Suruga Seiki Co., Ltd., Honda Motor Co., Ltd.
    Inventors: Yoshiaki Kawasaki, Michio Ono, Tetsuya Ogawa, Tadashi Tsunoda
  • Publication number: 20080096086
    Abstract: A separator includes a plurality of first and second sandwiching sections, a plurality of first bridges connected thereto, and first and second fuel gas supply units integrally connected to the first bridges. Electrolyte electrode assemblies are sandwiched between the first and second sandwiching sections. A fuel gas supply channel is formed in each of the first bridges. A fuel gas supply passage extends through the first and second fuel gas supply units in a stacking direction. A pressure loss generator mechanism is provided in the fuel gas supply channel. The pressure loss generator mechanism generates a pressure loss over the entire fuel gas supply channel for distributing a fuel gas equally to each of the electrolyte electrode assemblies.
    Type: Application
    Filed: October 17, 2007
    Publication date: April 24, 2008
    Applicant: Honda Motor Co., Ltd.
    Inventors: Tetsuya Ogawa, Koji Dan
  • Patent number: 7358179
    Abstract: After a HEMT is formed, side walls are formed on a semiconductor substrate. Next, a sacrificial layer is formed to cover the HEMT. Next, contact holes are formed in the sacrificial layer to expose upper surfaces of source electrodes. Next, a metal interconnect line is formed by patterning a metal film formed on the entire top surface. Next, slits are formed in the metal interconnect line to partially expose an upper surface of the sacrificial layer. After the sacrificial layer is dissolved, the dissolved sacrificial layer is discharged through the slits to the outside. An air space is formed as a result of the removal of the sacrificial layer.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: April 15, 2008
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tetsuya Ogawa, Toshiaki Kitano, Hiroyuki Minami
  • Publication number: 20080047354
    Abstract: A pressure sensor for detecting pressure includes: a metallic diaphragm for receiving the pressure; four strain gauges providing a Wheatstone bridge, wherein each strain gauge outputs an electric signal corresponding to deformation of the diaphragm when the diaphragm is deformed by the pressure; and four semiconductor chips corresponding to four strain gauges, wherein each strain gauge is disposed in the semiconductor chip. Each semiconductor chip is mounted on the diaphragm.
    Type: Application
    Filed: July 12, 2007
    Publication date: February 28, 2008
    Applicant: DENSO CORPORATION
    Inventors: Kiyoshi Otsuka, Osamu Itoh, Hiroshi Uchigashima, Kazuhiro Yoshino, Keiji Horiba, Tetsuya Ogawa
  • Patent number: 7322405
    Abstract: In a heat exchanger, a plurality of heat conductive pipes forming first passages are provided between an outer wall plate and an inner wall plate. Air flows through the first passages. Second passages are formed between the heat conductive pipes. An exhaust gas flows through the second passages. Each of the heat conductive pipes has opposite walls limiting the passage width of the first passage. The walls are formed along involute curves. The second passages are formed by providing adjacent heat conductive pipes along the involute curves.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: January 29, 2008
    Assignee: Honda Motor Co., Ltd.
    Inventor: Tetsuya Ogawa
  • Publication number: 20080020251
    Abstract: A flow passage member and a reformed gas supply pipe for supplying a reformed gas to a fuel cell stack are provided. Hot air to be supplied to the fuel cell stack flows through the flow passage member. A gold gasket is provided at a joint portion between the flow passage member and the reformed gas supply pipe. The gold gasket has malleability to achieve stable sealing performance and durability in the presence of the oxidizing atmosphere and the reducing atmosphere at high temperature.
    Type: Application
    Filed: January 13, 2006
    Publication date: January 24, 2008
    Applicant: Honda Motor Co., Ltd.
    Inventor: Tetsuya Ogawa
  • Publication number: 20070245367
    Abstract: A plurality of types of rating information are easily and reliably set. A television receiver A includes a receiver main body 1 and a remote controller 15 for controlling it. The receiver main body 1 includes a tuner unit 3, a signal processing unit 5, a display control unit 7 for controlling display, a display unit 11, a remote controller photoreception unit 17, a control unit 21 for overall control, a parental control unit 23 for controlling view, and a rating information storage unit 25 in which rating information is stored. In the rating information storage unit, tables relating to rating information 25 shown in Tables 1 to 9 are stored. In the television receiver A, based on an instruction from the control unit 21, the information in the tables can be referred to as needed. Tables indicating a plurality of types of rating information are stored in the rating information storage unit 25.
    Type: Application
    Filed: April 3, 2007
    Publication date: October 18, 2007
    Inventor: Tetsuya Ogawa
  • Publication number: 20070065710
    Abstract: A fuel cell includes electrolyte electrode assemblies and a pair of separators sandwiching the electrolyte electrode assemblies. The separator includes a plurality of circular disks, and a plurality of protrusions forming a fuel gas channel for supplying a fuel gas along an electrode surface of an anode are provided on a surface of each of the circular disks. Further, a deformable electrically conductive mesh member is provided on a surface of the circular disk. The deformable elastically conductive mesh member forms an oxygen-containing gas channel for supplying an oxygen-containing gas along a cathode, and tightly contacts the cathode.
    Type: Application
    Filed: June 23, 2006
    Publication date: March 22, 2007
    Applicant: Honda Motor Co., Ltd.
    Inventors: Tetsuya Ogawa, Tomoyuki Koketsu, Tomoyoshi Kuroishi
  • Publication number: 20060292432
    Abstract: A fuel gas supply channel connecting a fuel gas supply passage and a fuel gas inlet are provided in a separator, a channel lid member, and a circular disk member. A filter mechanism for filtering a fuel gas supplied from the fuel gas supply passage to a channel unit is provided in the fuel gas supply channel. The filter mechanism has a plurality of holes, and the cross sectional area of the opening of the hole is smaller than the cross sectional area of the opening of the fuel gas inlet.
    Type: Application
    Filed: June 21, 2006
    Publication date: December 28, 2006
    Applicant: Honda Motor Co., Ltd.
    Inventors: Tetsuya Ogawa, Hiroki Homma
  • Publication number: 20060292433
    Abstract: A fuel cell includes electrolyte electrode assemblies and a pair of separators sandwiching the electrolyte electrode assemblies. A fuel gas channel is provided along one surface of the separator, and an oxygen-containing gas channel is provided along the other surface of the separator. A groove connected to a fuel gas supply passage and a fuel gas inlet, is formed on the surface of the separator. Further, a channel lid member covers the groove to form a fuel gas supply channel.
    Type: Application
    Filed: June 23, 2006
    Publication date: December 28, 2006
    Applicant: Honda Motor Co., Ltd.
    Inventor: Tetsuya Ogawa
  • Publication number: 20060199322
    Abstract: After a HEMT is formed, side walls are formed on a semiconductor substrate. Next, a sacrificial layer is formed to cover the HEMT. Next, contact holes are formed in the sacrificial layer to expose upper surfaces of source electrodes. Next, a metal interconnect line is formed by patterning a metal film formed on the entire top surface. Next, slits are formed in the metal interconnect line to partially expose an upper surface of the sacrificial layer. After the sacrificial layer is dissolved, the dissolved sacrificial layer is discharged through the slits to the outside. An air space is formed as a result of the removal of the sacrificial layer.
    Type: Application
    Filed: December 7, 2005
    Publication date: September 7, 2006
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tetsuya Ogawa, Toshiaki Kitano, Hiroyuki Minami
  • Patent number: 7097709
    Abstract: A laser annealing apparatus for crystallizing a semiconductor film with a linearly radiating laser beam including a laser oscillator and laser optical systems for forming a laser beam radiated from the laser oscillator linearly, for application to a semiconductor film. Each linearly radiating laser beam from each laser optical system radiated onto the semiconductor film is arrayed almost linearly in a length direction, with an interval on the semiconductor film.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: August 29, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tatsuki Okamoto, Tetsuya Ogawa, Yukio Sato, Junichi Nishimae
  • Publication number: 20060131008
    Abstract: In a heat exchanger, a plurality of heat conductive pipes forming first passages are provided between an outer wall plate and an inner wall plate. Air flows through the first passages. Second passages are formed between the heat conductive pipes. An exhaust gas flows through the second passages. Each of the heat conductive pipes has opposite walls limiting the passage width of the first passage. The walls are formed along involute curves. The second passages are formed by providing adjacent heat conductive pipes along the involute curves.
    Type: Application
    Filed: December 22, 2005
    Publication date: June 22, 2006
    Applicant: Honda Motor Co., Ltd.
    Inventor: Tetsuya Ogawa
  • Publication number: 20060134476
    Abstract: A fuel cell system includes a fuel cell stack, a heat exchanger, a reformer, and a casing containing the fuel cell stack, the heat exchanger, and the reformer. A chamber unit is formed at an end plate of the fuel cell stack. The air heated by the heat exchanger temporarily fills the chamber unit. The heat exchanger and the reformer are directly connected to the chamber unit.
    Type: Application
    Filed: December 22, 2005
    Publication date: June 22, 2006
    Applicant: Honda Motor Co., Ltd.
    Inventors: Tadashi Tsunoda, Hiroki Homma, Tetsuya Ogawa
  • Patent number: 6935416
    Abstract: A heat exchanger is provided in which second heat transfer plates (42) and first heat transfer plates (not illustrated) are alternately superimposed so as to form high pressure fluid passages (63) and low pressure fluid passages (not illustrated). The high pressure fluid passages (63) include inlet fluid passages (65a, 65b) defined by inlet ridges (50a to 50c) extending from a compressed air inlet (19), and main fluid passages (64) defined by a plurality of main ridges (49) extending parallel to each other in the longitudinal direction of the second heat transfer plates (42) so as to be perpendicular to the inlet fluid passages (65a, 65b). The two inlet fluid passages (65a, 65b) have different widths (Wa, Wb), and gaps (?, ?) are formed between the downstream ends of the two inlet ridges (50b, 50c) and the upstream ends of the main ridges (49).
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: August 30, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Tadashi Tsunoda, Hidemi Kimura, Hideichi Yamamura, Tetsuya Ogawa
  • Publication number: 20050103087
    Abstract: A device and a process for producing a corrugated plate having a plurality of bent-into-contact portions extending in parallel on one face of a metal plate employs a number of steps. A first pressing step sequentially molds a plurality of U-shaped bent portions in the metal plate. A second pressing step sequentially molds the bent-into-contact portions by sequentially crushing the plurality of U-shaped bent portions. In the first pressing step, the U-shaped bent portions are fed in a direction orthogonal to the direction of the U-shaped bent portions, and positioned, and are pressed in a state in which the position is released. In the second pressing step, another face of the metal plate is pressed flat while molding the bent-into-contact portions by pressing the U-shaped bent portions from both sides.
    Type: Application
    Filed: October 4, 2004
    Publication date: May 19, 2005
    Inventors: Yoshiaki Kawasaki, Michio Ono, Tetsuya Ogawa, Tadashi Tsunoda