Patents by Inventor Osamu OONISHI

Osamu OONISHI 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).

  • ELECTRICAL SURGE PROTECTIVE APPARATUS
    Publication number: 20090250721
    Abstract: Disclosed is an electrical surge protective apparatus comprising: a base region containing impurities of a first conductivity type; a first semiconductor region containing impurities of a second conductivity type; a second semiconductor region containing impurities of the same conductivity type as that of the second conductivity type; and a high resistance region having a lower impurity concentration than the second semiconductor region. The first semiconductor region is joined to the base region on its upper surface side. The second semiconductor region is joined to the base region on its lower surface side. The high resistance region is electrically connected to both the base region and the second semiconductor region.
    Type: Application
    Filed: April 3, 2009
    Publication date: October 8, 2009
    Applicant: NEC ELECTRONICS CORPORATION
    Inventors: Tsutomu SONE, Osamu OONISHI