Patents by Inventor Sadao Tani

Sadao Tani 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).

  • Audio disc player
    Patent number: D286041
    Type: Grant
    Filed: February 28, 1984
    Date of Patent: October 7, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Kazuhiko Hiraoka, Kazuhiko Nishiyama, Takao Itoh, Sadao Tani
  • Audio disc player
    Patent number: D289947
    Type: Grant
    Filed: August 16, 1984
    Date of Patent: May 26, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Fumihito Katou, Kazuhiko Nishiyama, Kazuhiko Hiraoka, Takao Itoh, Sadao Tani