Patents by Inventor Mitsumasa Iwahara

Mitsumasa Iwahara 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).

  • Two-terminal semiconductor device of surface installation type
    Patent number: 5107324
    Abstract: A two-terminal semiconductor device of surface installation type comprising: a semiconductor chip hermetically enclosed in a package; and lead pins protruded from both end faces of the package with the semiconductor chip held between the inner ends thereof, characterized in that the lead pins protruded from both end faces of the package have outer end portions which are each formed into a flat-plate-shaped soldering leg by pressing, and the lead pins are formed into a hairpin shape in such a manner that the soldering legs are flush with each other.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: April 21, 1992
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Mitsumasa Iwahara, Misuo Tershima