Patents by Inventor Akira Kotabe

Akira Kotabe 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 memory device including 4TSRAMs
    Publication number: 20050047197
    Abstract: Disclosed is a method of improving stability of a memory cell in read mode in an SRAM including a memory cell comprising two access MOS transistors and two drive MOS transistors. The magnitude of voltage between gate and source of an access transistor of a memory cell connected to a selected word line is controlled to be smaller than a power-supply voltage by controlling the voltage of selected word line WL in read mode.
    Type: Application
    Filed: June 29, 2004
    Publication date: March 3, 2005
    Inventors: Akira Kotabe, Kenichi Osada, Masahiro Moniwa, Shiro Kamohara