Patents by Inventor Toshiko Yamada

Toshiko Yamada 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).

  • Stationary induction electric apparatus
    Patent number: 5055815
    Abstract: A stationary induction electric apparatus and a method for manufacturing the apparatus is disclosed. The apparatus comprises a reinforcement frame to be mounted on an inner peripheral surface of a rectangular core, a protective cover for covering both of the rectangular core and the reinforcement frame, a reinforcement band to be wound on an outer peripheral surface of the rectangular core on which the protective cover is mounted, and windings to be fitted on the leg portion of the rectangular core on which the reinforcement frame, the protective cover, and the reinforcement band are mounted.
    Type: Grant
    Filed: September 6, 1989
    Date of Patent: October 8, 1991
    Assignee: Daihen Corporation
    Inventors: Yasuo Yamamoto, Katsumi Hanaoka, Masatake Hirai, Toshiko Yamada