Patents by Inventor Yasuhiro Koseki

Yasuhiro Koseki 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).

  • Field effect transistor having capacitor between source and drain electrodes
    Patent number: 5650645
    Abstract: A semiconductor device having a field-effect transistor has a MOS capacitor formed on a principal surface of a semiconductor substrate of the semiconductor device, and connecting a first and a second electrodes of the MOS capacitor to a source electrode and a drain electrode, respectively, of the field-effect transistor.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: July 22, 1997
    Assignee: NEC Corporation
    Inventors: Tsutomu Sone, Toshinori Nishii, Keizo Hagimoto, Yasuhiro Koseki