Patents by Inventor Takuma Kanazawa

Takuma Kanazawa 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: 11052763
    Abstract: An electric apparatus (air pump), which operates by receiving a power supply from a drive control apparatus (PDU) mounted in a fuel cell vehicle, includes a first connection terminal section configured to directly connect to the drive control apparatus, and a second connection terminal section configured to connect to the drive control apparatus via a cable.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: July 6, 2021
    Assignee: Honda Motor Co., Ltd.
    Inventors: Ryoichi Yoshitomi, Takuma Kanazawa
  • Patent number: 10998570
    Abstract: A fuel cell vehicle includes a fuel cell system and an exhaust gas pipe. The fuel cell system includes a fuel cell stack, an oxygen-containing gas supply line, an oxygen-containing gas discharge line, and an air pump. The air pump includes a compressor provided in an oxygen-containing gas supply line, and an expander provided in an oxygen-containing gas discharge line. An air cleaner is provided upstream of the compressor. An exhaust gas pipe is connected to an expander. The air compressor is closer to the air cleaner than the expander is.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: May 4, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Takuma Kanazawa
  • Publication number: 20200122579
    Abstract: An electric apparatus (air pump), which operates by receiving a power supply from a drive control apparatus (PDU) mounted in a fuel cell vehicle, includes a first connection terminal section configured to directly connect to the drive control apparatus, and a second connection terminal section configured to connect to the drive control apparatus via a cable.
    Type: Application
    Filed: October 17, 2019
    Publication date: April 23, 2020
    Inventors: Ryoichi YOSHITOMI, Takuma KANAZAWA
  • Publication number: 20190386329
    Abstract: A fuel cell vehicle includes a fuel cell system and an exhaust gas pipe. The fuel cell system includes a fuel cell stack, an oxygen-containing gas supply line, an oxygen-containing gas discharge line, and an air pump. The air pump includes a compressor provided in an oxygen-containing gas supply line, and an expander provided in an oxygen-containing gas discharge line. An air cleaner is provided upstream of the compressor. An exhaust gas pipe is connected to an expander. The air compressor is closer to the air cleaner than the expander is.
    Type: Application
    Filed: June 7, 2019
    Publication date: December 19, 2019
    Inventor: Takuma Kanazawa
  • Patent number: 8820706
    Abstract: The on-off valve includes a body having a fluid path, a spherical valve body opening and closing the fluid path, a guide member opposing the valve body and having a flange portion radially extending outward, a first seat member slidable along an outer peripheral surface of the guide member and seating the valve body, an O-ring disposed between the first seat member and the guide member, a chamber formed of an inner wall portion of the fluid path, the outer peripheral surface, the flange portion, and the first seat member, and a spring member disposed in the chamber and urging the first seat member toward the valve body. In the on-off valve, a gap portion is formed between the inner wall portion and the first seat member and connects the valve body side of the fluid path to the chamber.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: September 2, 2014
    Assignees: Keihin Corporation, Honda Motor Co., Ltd.
    Inventors: Hideki Kawauchi, Takuya Wakabayashi, Takuma Kanazawa
  • Publication number: 20130026406
    Abstract: The on-off valve includes a body having a fluid path, a spherical valve body opening and closing the fluid path, a guide member opposing the valve body and having a flange portion radially extending outward, a first seat member slidable along an outer peripheral surface of the guide member and seating the valve body, an O-ring disposed between the first seat member and the guide member, a chamber formed of an inner wall portion of the fluid path, the outer peripheral surface, the flange portion, and the first seat member, and a spring member disposed in the chamber and urging the first seat member toward the valve body. In the on-off valve, a gap portion is formed between the inner wall portion and the first seat member and connects the valve body side of the fluid path to the chamber.
    Type: Application
    Filed: July 25, 2012
    Publication date: January 31, 2013
    Applicants: HONDA MOTOR CO., LTD., KEIHIN CORPORATION
    Inventors: Hideki Kawauchi, Takuya Wakabayashi, Takuma Kanazawa
  • Publication number: 20120251900
    Abstract: A fuel cell system is equipped with an expander which is driven by an off-gas exhausted from an oxidant eject path, and which transmits motive power to a compressor, a bypass route in the oxidant eject path which bypasses a humidifier, a flow control valve which changes an opening degree of the bypass route, a voltage sensor which detects an output voltage of the fuel cell stack, a current sensor which detects an output current of the fuel cell stack, and a bypass controlling member which changes a bypass ratio which is a ratio of a magnitude of a flow rate of the off-gas circulating the bypass route with respect to an overall flow rate of the off-gas ejected from the fuel cell stack to the oxidant eject path by the flow control valve according to the output power of the fuel cell stack.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 4, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Tatsuya SUGAWARA, Tomoki KOBAYASHI, Motohiro SUZUKI, Takuma KANAZAWA, Takuya WAKABAYASHI, Hayato KAJI
  • Patent number: 7470479
    Abstract: A method for warming up a fuel cell system comprising; a fuel cell which generates electric current due to an electrochemical reaction between hydrogen and oxygen, and which supplies the electric current to a load, an air supply pipe for supplying air to the fuel cell as an oxidant gas, an air exhaust pipe for discharging exhaust air from the fuel cell to an atmosphere, a compressor provided on either of air supply pipe and air exhaust pipe, which carries the air and a communication pipe which returns exhaust air to air supply pipe, and which communicates exhaust air pipe with air supply pipe to form a circulation cycle including compressor.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: December 30, 2008
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tomoki Kobayashi, Takuma Kanazawa, Yoshio Nuiya, Hiroshi Shimanuki
  • Patent number: 7045229
    Abstract: A gas-supplying apparatus in a fuel cell comprises a compressor which sucks a supply gas to be supplied to a fuel cell from downstream of said fuel cell, and which compresses an exhaust gas, generated from said supply gas by power generation in the fuel cell, exhausted from the fuel cell, and a heat exchanger which performs heat exchange between said supply gas and said exhaust gas. The apparatus has a simple configuration and improved heat efficiency.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: May 16, 2006
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Tomoki Kobayashi, Takuma Kanazawa, Yoshio Nuiya
  • Patent number: 6968915
    Abstract: A fuel cell automobile is provided with a fuel cell and an integral module including a drive module, a compression module, and an intercooler. At least one portion of the integral module is mounted to a body of the automobile by way of a mount. Further, a compressed air cooled using the intercooler is supplied to the fuel cell by way of a pipe at least portion of which is made of a resilient member.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: November 29, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Narihiro Takagi, Takuma Kanazawa, Koji Katano
  • Publication number: 20050260466
    Abstract: A method for warming up a fuel cell system comprising; a fuel cell which generates electric current due to an electrochemical reaction between hydrogen and oxygen, and which supplies the electric current to a load, an air supply pipe for supplying air to the fuel cell as an oxidant gas, an air exhaust pipe for discharging exhaust air from the fuel cell to an atmosphere, a compressor provided on either of air supply pipe and air exhaust pipe, which carries the air and a communication pipe which returns exhaust air to air supply pipe, and which communicates exhaust air pipe with air supply pipe to form a circulation cycle including compressor.
    Type: Application
    Filed: July 6, 2005
    Publication date: November 24, 2005
    Inventors: Tomoki Kobayashi, Takuma Kanazawa, Yoshio Nuiya, Hiroshi Shimanuki
  • Patent number: 6936359
    Abstract: An apparatus for warming-up a fuel cell has means for returning an exhaust gas which returns the exhaust gas to the supply gas depending upon the warning-up conditions of the fuel cell at the time when the supply gas is supplied into the fuel cell and it is discharged as the exhaust gas after utilizing the supply gas in the fuel cell.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: August 30, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Tomoki Kobayashi, Takuma Kanazawa, Yoshio Nuiya, Hiroshi Shimanuki
  • Publication number: 20030186092
    Abstract: A fuel cell automobile is provided with a fuel cell and an integral module including a drive module, a compressing module, and an intercooler. At least one portion of the integral module is mounted to a body of the automobile by way of a mount. Further, a compressed air cooled using the intercooler is supplied to the fuel cell by way of a pipe member at least portion of which is made by a resilient material.
    Type: Application
    Filed: March 27, 2003
    Publication date: October 2, 2003
    Applicant: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Narihiro Takagi, Takuma Kanazawa, Koji Katano
  • Publication number: 20020006537
    Abstract: A gas-supplying apparatus in a fuel cell comprises a compressor which sucks a supply gas to be supplied to a fuel cell from downstream of said fuel cell, and which compresses an exhaust gas, generated from said supply gas by power generation in the fuel cell, exhausted from the fuel cell, and a heat exchanger which performs heat exchange between said supply gas and said exhaust gas. The apparatus has a simple configuration and improved heat efficiency.
    Type: Application
    Filed: May 30, 2001
    Publication date: January 17, 2002
    Inventors: Tomoki Kobayashi, Takuma Kanazawa, Yoshio Nuiya
  • Publication number: 20010053469
    Abstract: An apparatus for warming-up a fuel cell has means for returning an exhaust gas which returns the exhaust gas to the supply gas depending upon the warning-up conditions of the fuel cell at the time when the supply gas is supplied into the fuel cell and it is discharged as the exhaust gas after utilizing the supply gas in the fuel cell.
    Type: Application
    Filed: May 30, 2001
    Publication date: December 20, 2001
    Applicant: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Tomoki Kobayashi, Takuma Kanazawa, Yoshio Nuiya, Hiroshi Shimanuki