Patents by Inventor Sinichi Yamashiro

Sinichi Yamashiro 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).

  • Method of manufacturing electrical windings
    Patent number: 6339870
    Abstract: A method of manufacturing electrical windings, according to which it is possible to manufacture, with high efficiency, the electrical windings differing in function and capable of performing the functions required of the respective windings. In the steps of forming the windings by winding the conductors and applying insulation on the windings, there are formed the insulating layers 12, 22 and 32 suitable for the respective types of windings, viz. main pole coil 10, interpole coil 20 and compensating coils 30, and a same impregnating resin is impregnated and hardened in each of said main pole coil 10, interpole coil 20 and compensating coils 30.
    Type: Grant
    Filed: January 5, 1993
    Date of Patent: January 22, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Syoichi Maruyama, Sinichi Yamashiro, Kenji Mishima