Patents by Inventor Mitsutomo Iwase

Mitsutomo Iwase 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).

  • Inverter circuit free from power-source-voltage fluctuation
    Patent number: 7528569
    Abstract: An inverter circuit includes a bridge circuit constituted of a plurality of pairs of a high-side switching element and a low-side switching element, a command signal processing section, a pulse generating section for generating pulse signals to control the inverter bridge circuit according to the command signal to have a dead time to prevent short circuiting of the dc power source and a command signal compensation section. The compensation section modifies the command signal according to a current voltage level of the dc power source to control the dead zone, thereby preventing deformation of ac output power of the bridge circuit.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: May 5, 2009
    Assignees: Denso Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenichiro Hidaka, Hisashi Kameya, Mitsutomo Iwase, Yasuo Ito, Masahiro Miyata, Takahiro Kojo
  • Inverter circuit free from power-source-voltage fluctuation
    Publication number: 20070052384
    Abstract: An inverter circuit includes a bridge circuit constituted of a plurality of pairs of a high-side switching element and a low-side switching element, a command signal processing section, a pulse generating section for generating pulse signals to control the inverter bridge circuit according to the command signal to have a dead time to prevent short circuiting of the dc power source and a command signal compensation section. The compensation section modifies the command signal according to a current voltage level of the dc power source to control the dead zone, thereby preventing deformation of ac output power of the bridge circuit.
    Type: Application
    Filed: September 1, 2006
    Publication date: March 8, 2007
    Applicants: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kenichiro Hidaka, Hisashi Kameya, Mitsutomo Iwase, Yasuo Ito, Masahiro Miyata, Takahiro Kojo