Patents by Inventor Toshiyuki Kosaka

Toshiyuki Kosaka 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 of manufacturing the same
    Patent number: 7754616
    Abstract: A method of manufacturing a semiconductor device includes: forming a mask layer on a layer that is to be subjected to etching and contains at least one of silicon carbonate, silicon oxide, sapphire, gallium nitride, aluminum gallium nitride, indium gallium nitride, and aluminum nitride, the mask layer having an opening and including a nickel chrome film, a gold film, and a nickel film in this order when seen from the layer to be subjected to etching; and performing etching on the layer to be subjected to etching, with the mask layer serving as a mask.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: July 13, 2010
    Assignee: Eudyna Devices Inc.
    Inventors: Toshiyuki Kosaka, Masaomi Emori
  • Semiconductor device and method of manufacturing the same
    Publication number: 20070207614
    Abstract: A method of manufacturing a semiconductor device includes: forming a mask layer on a layer that is to be subjected to etching and contains at least one of silicon carbonate, silicon oxide, sapphire, gallium nitride, aluminum gallium nitride, indium gallium nitride, and aluminum nitride, the mask layer having an opening and including a nickel chrome film, a gold film, and a nickel film in this order when seen from the layer to be subjected to etching; and performing etching on the layer to be subjected to etching, with the mask layer serving as a mask.
    Type: Application
    Filed: March 1, 2007
    Publication date: September 6, 2007
    Applicant: EUDYNA DEVICES INC.
    Inventors: Toshiyuki Kosaka, Masaomi Emori
  • Method for manufacturing restriction enzymes from Bifidobacteria
    Patent number: 4542099
    Abstract: This invention relates to a method for manufacturing restriction enzymes, which comprises cultivating a restriction enzyme-producing strain belonging to Bifidobacterium and recovering the restriction enzyme from the bacteria thus cultivated.
    Type: Grant
    Filed: March 4, 1981
    Date of Patent: September 17, 1985
    Assignee: Kabushiki Kaisha Yakult Honsha
    Inventors: Toshizo Sakurai, Toshiyuki Kosaka