Patents by Inventor Yasuda HIROSHI

Yasuda HIROSHI 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).

  • Electronic device and method for increasing reliability of bipolar transistors under high voltage conditions
    Patent number: 9147756
    Abstract: The invention relates to an electronic device with a bipolar transistor having an emitter, a base and a collector. The base has a first region of a first concentration of the first dopant for forming an electrically active region of the base and a second region of a second concentration of the first dopant close to the surface of the base region. The first region is separated from the second region by a region of a third concentration of the first dopant and the third concentration is lower than the first and the second concentration.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: September 29, 2015
    Assignee: TEXAS INSTRUMENTS DEUTSCHLAND GMBH
    Inventors: Philipp Menz, Berthold Staufer, Yasuda Hiroshi
  • Electronic Device and Method for Increasing Reliability of Bipolar Transistors Under High Voltage Conditions
    Publication number: 20130193557
    Abstract: The invention relates to an electronic device with a bipolar transistor having an emitter, a base and a collector. The base has a first region of a first concentration of the first dopant for forming an electrically active region of the base and a second region of a second concentration of the first dopant close to the surface of the base region. The first region is separated from the second region by a region of a third concentration of the first dopant and the third concentration is lower than the first and the second concentration.
    Type: Application
    Filed: July 25, 2012
    Publication date: August 1, 2013
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Philipp MENZ, Berthold STAUFER, Yasuda HIROSHI