Patents by Inventor Takashi Kotoh

Takashi Kotoh 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).

  • Power output device with fuel cell and method therefor
    Patent number: 8017276
    Abstract: An output limitation warning lamp is turned on when a possible output Qf of the fuel cell is less than a predetermined value L2. The output limitation warning lamp is provided at a combination meter in an instrument panel. The output limitation warning lamp is also turned on when a possible output Qb of the secondary battery is less than a predetermined value L3. Furthermore, the output limitation warning lamp is also turned on when an allowable drive output Qh, which is the sum of the possible output Qf of the fuel cell and the possible output Qb of the secondary battery, has been less than a required output Ed* calculated at a step before carrying out output limitation to more than a certain extent for longer than a predetermined length of time.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: September 13, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tatsuya Fujita, Yasuhiko Niimi, Takashi Kotoh, Hideaki Mizuno, Nobuo Watanabe, Tadaichi Matsumoto
  • Power output device with fuel cell and method therefor
    Patent number: 8012637
    Abstract: An output limitation warning lamp is turned on when a possible output Qf of the fuel cell is less than a predetermined value L2. The output limitation warning lamp is provided at a combination meter in an instrument panel. The output limitation warning lamp is also turned on when a possible output Qb of the secondary battery is less than a predetermined value L3. Furthermore, the output limitation warning lamp is also turned on when an allowable drive output Qh, which is the sum of the possible output Qf of the fuel cell and the possible output Qb of the secondary battery, has been less than a required output Ed* calculated at a step before carrying out output limitation to more than a certain extent for longer than a predetermined length of time.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: September 6, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tatsuya Fujita, Yasuhiko Niimi, Takashi Kotoh, Hideaki Mizuno, Nobuo Watanabe, Tadaichi Matsumoto
  • POWER OUTPUT DEVICE WITH FUEL CELL AND METHOD THEREFOR
    Publication number: 20070154756
    Abstract: An output limitation warning lamp is turned on when a possible output Qf of the fuel cell is less than a predetermined value L2. The output limitation warning lamp is provided at a combination meter in an instrument panel. The output limitation warning lamp is also turned on when a possible output Qb of the secondary battery is less than a predetermined value L3. Furthermore, the output limitation warning lamp is also turned on when an allowable drive output Qh, which is the sum of the possible output Qf of the fuel cell and the possible output Qb of the secondary battery, has been less than a required output Ed* calculated at a step before carrying out output limitation to more than a certain extent for longer than a predetermined length of time.
    Type: Application
    Filed: March 2, 2007
    Publication date: July 5, 2007
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tatsuya Fujita, Yasuhiko Niimi, Takashi Kotoh, Hideaki Mizuno, Nobuo Watanabe, Tadaichi Matsumoto
  • Power output device with fuel cell and method therefor
    Publication number: 20020192519
    Abstract: An output limitation warning lamp is turned on when a possible output Qf of the fuel cell is less than a predetermined value L2. The output limitation warning lamp is provided at a combination meter in an instrument panel. The output limitation warning lamp is also turned on when a possible output Qb of the secondary battery is less than a predetermined value L3. Furthermore, the output limitation warning lamp is also turned on when an allowable drive output Qh, which is the sum of the possible output Qf of the fuel cell and the possible output Qb of the secondary battery, has been less than a required output Ed* calculated at a step before carrying out output limitation to more than a certain extent for longer than a predetermined length of time.
    Type: Application
    Filed: June 17, 2002
    Publication date: December 19, 2002
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tatsuya Fujita, Yasuhiko Niimi, Takashi Kotoh, Hideaki Mizuno, Nobuo Watanabe, Tadaichi Matsumoto