Patents by Inventor Hirofumi FUJISAWA

Hirofumi FUJISAWA 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 and method for manufacturing the same
    Patent number: 9799608
    Abstract: A semiconductor device includes a monocrystalline substrate of a material which does not have a liquid phase at atmospheric pressure, and an identification mark disposed on or in the substrate comprising an amorphous region of the material or a region of the material deviated from stoichiometry.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: October 24, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takuma Suzuki, Hirofumi Fujisawa, Tsutomu Shirakawa, Kenya Sano
  • SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20160268212
    Abstract: A semiconductor device includes a monocrystalline substrate of a material which does not have a liquid phase at atmospheric pressure, and an identification mark disposed on or in the substrate comprising an amorphous region of the material or a region of the material deviated from stoichiometry.
    Type: Application
    Filed: August 31, 2015
    Publication date: September 15, 2016
    Inventors: Takuma SUZUKI, Hirofumi FUJISAWA, Tsutomu SHIRAKAWA, Kenya SANO