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).

  • Fuel cell and fuel cell stack
    Patent number: 8557467
    Abstract: A fuel cell includes separators sandwiching electrolyte electrode assemblies. Each of the separators includes a fuel gas supply passage, four first bridges extending radially outwardly from the fuel gas supply section, and sandwiching sections connected to the first bridges. A fuel gas supply passage extends through the fuel gas supply section. Each of the sandwiching sections has a fuel gas channel and an oxygen-containing gas channel. The four electrolyte electrode assemblies are arranged concentrically around the fuel gas supply section. A fuel cell stack includes such fuel cells.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: October 15, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tetsuya Ogawa, Yukihiko Kiyohiro, Tsutomu Takahashi
  • Solid oxide fuel cell manifold and corresponding stack
    Patent number: 8530107
    Abstract: A fuel cell and a fuel cell stack thereof includes separators, each of which includes a sandwiching section for sandwiching an electrolyte electrode assembly, a bridge and a reactant gas supply section, wherein the sandwiching section has a fuel gas channel and an oxygen-containing gas channel, the bridge has a fuel gas supply channel for supplying the fuel gas to the fuel gas channel and an oxygen-containing gas supply channel for supplying the oxygen-containing gas to the oxygen-containing gas channel, and a fuel gas supply passage for supplying the fuel gas to the fuel gas supply channel and an oxygen-containing gas supply passage for supplying the oxygen-containing gas to the oxygen-containing gas supply channel extend through the reactant gas supply section in the stacking direction.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: September 10, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tetsuya Ogawa, Ayatoshi Yokokawa
  • CATALYST PARTICLES, CARBON-SUPPORTED CATALYST PARTICLES AND FUEL CELL CATALYSTS, AND METHODS OF MANUFACTURING SUCH CATALYST PARTICLES AND CARBON-SUPPORTED CATALYST PARTICLES
    Publication number: 20130189607
    Abstract: A catalyst particle is composed of an inner particle and an outermost layer that includes platinum and covers the inner particle. The inner particle includes on at least a surface thereof a first oxide having an oxygen defect.
    Type: Application
    Filed: October 6, 2011
    Publication date: July 25, 2013
    Inventors: Go Sakai, Tatsuya Arai, Tetsuya Ogawa, Koshi Sekizawa, Naoki Takehiro
  • METHOD FOR INHIBITION OF BLOOD PHOSPHORUS LEVEL ELEVATION
    Publication number: 20130089531
    Abstract: The present invention provides a method for inhibiting blood phosphorus level elevation, including administering to a patient in need thereof a composition comprising a lactic acid bacterium as an active ingredient. The method may further include encapsulating the composition comprising a lactic acid bacterium in a capsule. The inhibitor for blood phosphorus level elevation of the present invention is highly safe, is readily administrable, and can sufficiently inhibit a blood phosphorus level elevation.
    Type: Application
    Filed: November 29, 2012
    Publication date: April 11, 2013
    Applicant: MORISHITA JINTAN CO., LTD.
    Inventors: Masanori Asada, Tadashi Kanaya, Tetsuya Ogawa, Mikiko Shimada, Yumi Uehara
  • FUEL CELL SYSTEM
    Publication number: 20130029237
    Abstract: A fuel cell system includes a fuel cell module, a combustor, a fuel gas supply apparatus, an oxygen-containing gas supply apparatus, a water supply apparatus, a power converter, a control device, and a casing containing the fuel cell module, the combustor, the fuel gas supply apparatus, the oxygen-containing gas supply apparatus, the water supply apparatus, the power converter, and the control device. The casing includes a casing body having an opening in the front face and a slide door that is installed onto the casing body. When the slide door slides horizontally, the opening is opened/closed. The power converter and the control device are attached onto the slide door at upper and lower positions.
    Type: Application
    Filed: March 15, 2011
    Publication date: January 31, 2013
    Applicant: Honda Motor Co., Ltd.
    Inventors: Kimiko Fujisawa, Tetsuya Ogawa
  • FUEL CELL SYSTEM AND METHOD OF CONTROLLING THE FUEL CELL SYSTEM
    Publication number: 20130029235
    Abstract: A fuel cell system includes a fuel cell module and a condenser apparatus. The condenser apparatus includes a first condenser using an oxygen-containing as a coolant, and a second condenser using hot water stored in a hot water tank as the coolant. Further, the fuel cell system includes a control device for controlling at least one of a flow rate of the exhaust gas supplied to the first condenser and a flow rate of the exhaust gas supplied to the second condenser based on at least any of a water level of the hot water in the hot water tank, a temperature of the hot water in the hot water tank, and a water level of the condensed water in the condenser apparatus.
    Type: Application
    Filed: March 15, 2011
    Publication date: January 31, 2013
    Applicant: Honda Motor Co., Ltd.
    Inventors: Yukihiko Kiyohiro, Tetsuya Ogawa, Ayatoshi Yokokawa
  • FUEL CELL SYSTEM
    Publication number: 20130017464
    Abstract: A fuel cell system includes a fuel cell module, a combustor, a fuel gas supply apparatus, an oxygen-containing gas supply apparatus, a water supply apparatus, a power converter, a control device, and a casing containing the fuel cell module, the combustor, the fuel gas supply apparatus, the oxygen-containing gas supply apparatus, the water supply apparatus, the power converter, and the control device. The casing includes a casing body and an open/close door that opens/closes the casing body by rotation about a vertical axis through hinges. The power converter and the control device are attached onto the open/close door at upper and lower positions.
    Type: Application
    Filed: March 15, 2011
    Publication date: January 17, 2013
    Inventors: Kimiko Fujisawa, Tetsuya Ogawa
  • Fuel cell stack
    Patent number: 8323853
    Abstract: A separator includes a first fuel gas supply unit, a second fuel gas supply unit, first sandwiching sections, second sandwiching sections, a first case unit and a second case unit. The first and second sandwiching sections are connected to the first fuel gas supply unit and the second fuel gas supply unit, respectively, through first bridges. The first case unit and the second case unit are connected to the first sandwiching sections and the second sandwiching sections through second bridges. A first surface pressure F1 generated near a fuel gas supply passage, a second surface pressure F2 generated near an oxygen-containing gas supply passage, and a third surface pressure F3 generated near electrolyte electrode assemblies have different values.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: December 4, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tetsuya Ogawa, Koji Dan
  • Fuel cell and fuel cell stack
    Patent number: 8283086
    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: Grant
    Filed: October 17, 2007
    Date of Patent: October 9, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tetsuya Ogawa, Koji Dan
  • FUEL CELL
    Publication number: 20120164549
    Abstract: The present invention provides a fuel cell in which an electrolyte electrode assembly having an electrolyte sandwiched between an anode and a cathode is provided between separators, each of the separators including: a sandwiching section which sandwiches an electrolyte electrode assembly and includes a fuel gas channel and a separately provided oxygen-containing gas channel; a bridge which is connected to the sandwiching section and includes a reactant gas supply channel; a reactant gas supply section which is connected to the bridge and includes a reactant gas supply passage; and a connecting section that connects the sandwiching section to the bridge.
    Type: Application
    Filed: September 1, 2010
    Publication date: June 28, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Tetsuya Ogawa, Kimiko Fujisawa, Ayatoshi Yokokawa
  • Fuel cell system with improved fluid unit configuration
    Patent number: 8197977
    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: Grant
    Filed: May 16, 2007
    Date of Patent: June 12, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventor: Tetsuya Ogawa
  • Fuel cell system
    Patent number: 8178256
    Abstract: A casing of a fuel cell system is divided into a module area, a first fluid supply area, a second fluid supply area, and an electric parts area. The first fluid supply area is provided on a first side surface of the module area, and an electric parts area is provided on a second side surface of the module area. The second fluid supply area is provided under a bottom surface of the module area. A fuel cell module and a combustor are provided in the module area.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: May 15, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tetsuya Ogawa, Jun Yamamoto, Tomio Miyazaki, Shuji Nagatani
  • FUEL CELL STACK
    Publication number: 20120100452
    Abstract: The present invention provides a fuel cell stack that has a separator arranged between fuel cells, the separator including: a sandwiching section which sandwiches an electrolyte electrode assembly and includes a fuel gas channel and a separately provided oxygen-containing gas channel; a bridge which is connected to the sandwiching section and includes a reactant gas supply channel; a reactant gas supply section which is connected to the bridge and includes a reactant gas supply passage; and a connecting section that connects the sandwiching section to the bridge.
    Type: Application
    Filed: September 1, 2010
    Publication date: April 26, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Tetsuya Ogawa, Kimiko Fujisawa, Ayatoshi Yokokawa
  • SHEET CONVEYING DEVICE, PRINT SYSTEM, AND SHEET COOLING METHOD
    Publication number: 20120063790
    Abstract: A sheet conveying device that conveys a sheet discharged from an image forming apparatus. The sheet conveying device includes an air intake fan that takes in external air; an air exhaust fan that discharges internal air; a plurality of branched conveying paths which are branched from a conveying path within a range from a sheet entrance to a sheet exit and for which a passing time of the sheet is approximately the same; a conveyance motor that independently conveys the sheet to each one of the branched conveying paths; a conveying path switching unit that switches among the branched conveying paths; and a conveying path control unit that causes the conveying path switching unit to sequentially switch among the branched conveying paths every time the sheet is input from the image forming apparatus.
    Type: Application
    Filed: September 13, 2011
    Publication date: March 15, 2012
    Inventor: Tetsuya OGAWA
  • FUEL CELL MODULE
    Publication number: 20120045703
    Abstract: In a fuel cell stack constituting a fuel cell module, electrolyte/electrode assemblies and separators are alternately laminated. An electrolyte/electrode assembly is arranged on one end of the fuel cell stack in the lamination direction, while a separator is arranged on the other end of the fuel cell stack in the lamination direction. A terminal separator is arranged adjacent to the electrolyte/electrode assembly, while a load relaxation member is arranged adjacent to the separator. The terminal separator controls the supply of a fuel gas to a fuel gas channel, and the load relaxation member is configured of a laminate of a plurality of flat metal plates.
    Type: Application
    Filed: April 20, 2010
    Publication date: February 23, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Ayaka Nango, Tetsuya Ogawa, Yukihiko Kiyohiro
  • FUEL CELL MODULE
    Publication number: 20120045708
    Abstract: In a fuel cell stack constituting a fuel cell module, electrolyte/electrode assemblies and separators are alternately laminated. An electrolyte/electrode assembly and a terminal separator are arranged on one end of the fuel cell stack in the lamination direction in this order outwardly, and a dummy electrolyte/electrode assembly and a terminal separator are arranged on the other end of the fuel cell stack in the lamination direction in this order outwardly. The dummy electrolyte/electrode assembly is so formed as to have the same shape as the electrolyte/electrode assemblies, while having conductivity but not having a power generation function.
    Type: Application
    Filed: April 20, 2010
    Publication date: February 23, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Ayaka Nango, Tetsuya Ogawa, Tomoyoshi Kuroishi
  • INPUT CIRCUIT
    Publication number: 20120019290
    Abstract: An input terminal receives an external input signal. An input transistor is arranged such that the control terminal thereof is connected to the input terminal, and configured to change its state according to the input signal. An initializing transistor is arranged between the input terminal and the ground terminal. When the power supply for the input terminal is turned on, the control circuit turns on the initializing transistor, following which the control circuit turns off the initializing transistor.
    Type: Application
    Filed: August 9, 2010
    Publication date: January 26, 2012
    Applicant: ROHM CO., LTD.
    Inventor: Tetsuya OGAWA
  • FUEL CELL
    Publication number: 20120021324
    Abstract: A fuel cell is provided with a separator that supports an electrolyte/electrode assembly sandwiched therebetween. The separator is provided with: first and second fuel gas supply parts in the center of which fuel gas supply holes are formed; first and second cross-link parts connected to the first and second fuel gas supply parts; and first and second sandwiching support parts connected to the first and second cross-link parts. Each first sandwiching support part is provided with a set of fuel gas exhaust passages that discharge fuel gas that has gone through a fuel gas passage and been used. The cross-sectional areas of the fuel gas exhaust passages are larger on the downstream sides than on the upstream sides, in terms of the direction of fuel gas flow.
    Type: Application
    Filed: March 16, 2010
    Publication date: January 26, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Tetsuya Ogawa, Yukihiko Kiyohiro, Koji Dan
  • FUEL CELL
    Publication number: 20120009498
    Abstract: A fuel cell is provided with a separator that supports an electrolyte/electrode assembly sandwiched therebetween. The separator is provided with: first and second fuel gas supply parts in the center of which fuel gas supply holes are formed; first and second cross-link parts connected to the first and second fuel gas supply parts; and first and second surrounding support parts connected to the first and second cross-link parts. Each first surrounding support part is provided with a set of fuel gas exhaust passages that discharge fuel gas that has gone through a fuel gas passage and been used. The cross-sectional areas of the fuel gas exhaust passages are larger on the downstream sides than on the upstream sides, in terms of the direction of fuel gas flow.
    Type: Application
    Filed: March 16, 2010
    Publication date: January 12, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Tetsuya Ogawa, Yukihiko Kiyohiro, Koji Dan, Yuki Yoshimine
  • FUEL CELL
    Publication number: 20120003561
    Abstract: A fuel cell comprises an electrolyte electrode assembly which includes an anode electrode, a cathode electrode, and an electrolyte; a separator which includes a sandwiching portion; a fuel gas channel which is formed at a first surface of the sandwiching portion, and is covered by the anode electrode; fuel gas outlets which are formed around the fuel gas channel; an oxygen-containing gas channel which is formed at a second surface of the sandwiching portion, and is covered by the cathode electrode; and oxygen-containing gas outlets which are formed around the oxygen-containing gas channel, in which the oxygen-containing gas outlets are formed at phases different from phases of the fuel gas outlets in a thickness direction of the separator.
    Type: Application
    Filed: March 24, 2010
    Publication date: January 5, 2012
    Applicant: Honda Motor Co., Ltd.
    Inventors: Tetsuya Ogawa, Ayatoshi Yokokawa