Patents by Inventor Ronald K. Tamura

Ronald K. Tamura 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).

  • High speed, high yield CMOS/SOS process
    Patent number: 4002501
    Abstract: A process for producing complementary metal-oxide-semiconductor/silicon-on-sapphire (CMOS/SOS) devices wherein undesirable effects of phosphorous on sapphire are avoided.
    Type: Grant
    Filed: June 16, 1975
    Date of Patent: January 11, 1977
    Assignee: Rockwell International Corporation
    Inventor: Ronald K. Tamura