Patents by Inventor Toshio Nakashita

Toshio Nakashita 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).

  • Information recording medium and method
    Patent number: 4629649
    Abstract: In an information recording medium comprising a substrate and a recording layer, the recording layer is formed from a germanium-tin material. Recording light may be conducted to the layer where amorphous-crystalline phase transition or crystal form change occurs.
    Type: Grant
    Filed: June 7, 1985
    Date of Patent: December 16, 1986
    Assignee: TDK Corporation
    Inventors: Yukio Osaka, Takeshi Imura, Toshio Nakashita