Patents by Inventor Nobuyuki Kajiya

Nobuyuki Kajiya 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).

  • Liquid cooled rotating electrical machine
    Patent number: 8203240
    Abstract: A rotating electrical machine includes: a stator that including a stator core and a teeth section, with a stator coil wound at the teeth section; a rotor arranged via a clearance at an inner periphery side of the stator and supported in a freely rotating manner; and a distribution unit supported by a resin holder, and including a conductor connected to the stator coil. The rotating electrical machine is cooled by coolant. The stator coil includes a coil end section projecting from an end of the stator in an axial direction. A gap is formed between an end of the stator core and a lower surface of the distribution unit by mounting the distribution unit on an upper part of the coil end section. The gap constitutes a path for the coolant.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: June 19, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Katsuhiro Hoshino, Kenichi Nakayama, Nobuyuki Kajiya, Takayuki Koizumi, Toshiaki Ueda
  • Rotating Electrical Machine
    Publication number: 20090184591
    Abstract: A rotating electrical machine includes: a stator that including a stator core and a teeth section, with a stator coil wound at the teeth section; a rotor arranged via a clearance at an inner periphery side of the stator and supported in a freely rotating manner; and a distribution unit supported by a resin holder, and including a conductor connected to the stator coil. The rotating electrical machine is cooled by coolant. The stator coil includes a coil end section projecting from an end of the stator in an axial direction. A gap is formed between an end of the stator core and a lower surface of the distribution unit by mounting the distribution unit on an upper part of the coil end section. The gap constitutes a path for the coolant.
    Type: Application
    Filed: December 12, 2008
    Publication date: July 23, 2009
    Applicant: Hitachi, Ltd.
    Inventors: Katsuhiro HOSHINO, Kenichi NAKAYAMA, Nobuyuki KAJIYA, Takayuki KOIZUMI, Toshiaki UEDA