Patents by Inventor Ryoji Takatani

Ryoji Takatani 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).

  • Rectifier device
    Patent number: 4646131
    Abstract: A rectifier device which includes a first radiating fin, a flat type semiconductor element which is disposed in contact with one surface of said first radiating fin, a substantially cylindrical insulating envelope which envelopes the flat type semiconductor element and one side of which is coupled with said first radiating fin, a second radiating fin which is coupled with the other side of the insulating envelope, and a through conductor which is threadably inserted through a central part of said second radiating fin and which lies in contact with said flat type semiconductor element.
    Type: Grant
    Filed: November 18, 1983
    Date of Patent: February 24, 1987
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Nobutada Amagasa, Ryoji Takatani, Hiroshi Inoo, Kazuichi Suzuki, Mitsuo Kiriyama