Patents by Inventor Eiichirou TOKIZAKI

Eiichirou TOKIZAKI 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).

  • Permanent magnet electrical rotating machine with protection members arranged between permanent magnets and rotor cores
    Patent number: 10389194
    Abstract: A permanent magnet electrical rotating machine is provided which is capable of contributing to protected permanent magnets and increased cooling performance during operation. The permanent magnet electrical rotating machine includes: permanent magnets; rotor cores that have the permanent magnets mounted thereto and are laminated in a rotating axis direction; spacers that are placed between adjacent rotor cores; and permanent magnet protection members that are installed between the permanent magnets and the rotor cores and also placed to maintain radial continuity in space partitioned by the spacers between the rotor cores.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: August 20, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Mamoru Kimura, Masahiro Hori, Youichi Matsumoto, Tetsuo Fujigaki, Motonobu Iiduka, Yoshihiro Yasui, Eiichirou Tokizaki, Masanori Matsumoto
  • Permanent Magnet Dynamo-Electric Machine
    Publication number: 20170155292
    Abstract: A permanent magnet electrical rotating machine is provided which is capable of contributing to protected permanent magnets and increased cooling performance during operation. The permanent magnet electrical rotating machine includes: permanent magnets; rotor cores that have the permanent magnets mounted thereto and are laminated in a rotating axis direction; spacers that are placed between adjacent rotor cores; and permanent magnet protection members that are installed between the permanent magnets and the rotor cores and also placed to maintain radial continuity in space partitioned by the spacers between the rotor cores.
    Type: Application
    Filed: December 3, 2014
    Publication date: June 1, 2017
    Inventors: Mamoru KIMURA, Masahiro HORI, Youichi MATSUMOTO, Tetsuo FUJIGAKI, Motonobu IIDUKA, Yoshihiro YASUI, Eiichirou TOKIZAKI, Masanori MATSUMOTO