Patents by Inventor Toshinari Shimazu

Toshinari Shimazu 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).

  • Rotor for rotary electric machine
    Patent number: 4942324
    Abstract: A rotor for a rotary electric machine having a plurality of split sectors each composed of a laminated of split sector pieces made of sector-shaped thin steel plates, arranged in one circular shape, coupled to a rotor clamping tool by the joint of the lower end of the sectors, and rotor coils inserted into the coil slots of the split sectors and connected to each other outside the split sectors.
    Type: Grant
    Filed: January 3, 1989
    Date of Patent: July 17, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yuji Ooyama, Toshinari Shimazu
  • Seal-ring type shaft-sealing device
    Patent number: 4348029
    Abstract: A seal-ring type shaft-sealing device for sealing a highly pressurized fluid such as gas and liquid has a seal ring whose inner circumference is previously formed ovally and is held so as to incline the longitudinal axis of the ellipse to the gravity force direction in the revolutional direction of the rotating shaft at an angle smaller than 90.degree. thus improving the floating characteristic and eliminating the irregular distribution in temperature during operation. The device can be used, for example, in a turbine generator.
    Type: Grant
    Filed: July 22, 1981
    Date of Patent: September 7, 1982
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Norio Oishi, Toshinari Shimazu, Takuya Suganami, Takahiro Masuda