Patents by Inventor Shoji Date

Shoji Date 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).

  • Resin sealed type semiconductor device
    Patent number: 5459350
    Abstract: A resin sealed semiconductor device includes a current-detecting resistance for detecting current flowing in a semiconductor element that is a metallic resistance having a coefficient of thermal expansion almost equal to that of the lead frame. Compared to a conventional ceramic chip resistance, its coefficient of thermal expansion differs less from that of the lead frame, thereby preventing deterioration caused by heat stress.
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: October 17, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shoji Date, Ziro Honda, Toshiya Nakano, Hazime Kato