Patents by Inventor Mitsuhiro Yamanashi

Mitsuhiro Yamanashi 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).

  • Semiconductor static random access memory device with covered driver transistors
    Patent number: 5468986
    Abstract: A semiconductor memory device of the present invention includes a memory cell comprising two transfer transistors and two driver transistors in which a nitride film is covered only on these driver transistor areas. The nitride film is formed over source and drain regions and a gate electrode of the driver transistor.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: November 21, 1995
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Mitsuhiro Yamanashi