Patents by Inventor Masato Oooka

Masato Oooka 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 device
    Patent number: 8928045
    Abstract: A channel region having a first conductivity type is disposed in a surface portion of a semiconductor substrate. A gate region having a second conductivity type is disposed in a surface portion of the channel region. A first semiconductor region having the second conductivity type is disposed under the channel region. Source/drain regions having the first conductivity type are disposed in parts of the surface portion of the channel region on both sides of the gate region in a channel length direction. Second semiconductor regions each having a high impurity concentration and the second conductivity type are disposed in parts of the semiconductor substrate on both sides of the channel region in a channel width direction.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: January 6, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masato Oooka, Osamu Matsui, Shuji Tsujino