Patents by Inventor Toru Tsunetsugu

Toru Tsunetsugu 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).

  • Video disc player
    Patent number: D290000
    Type: Grant
    Filed: October 2, 1984
    Date of Patent: May 26, 1987
    Assignee: Pioneer Electronic Corporation
    Inventors: Juichi Yamamoto, Kazuhiko Kawano, Toru Tsunetsugu, Shuji Natori, Noboru Keitoku
  • Combined telephone, automatic answering and recording machine
    Patent number: D290353
    Type: Grant
    Filed: August 23, 1985
    Date of Patent: June 16, 1987
    Assignee: Pioneer Ansafone Manufacturing Corporation
    Inventors: Kazuhiko Kawano, Toru Tsunetsugu
  • Telephone set
    Patent number: D290606
    Type: Grant
    Filed: July 8, 1985
    Date of Patent: June 30, 1987
    Assignee: Pioneer Ansafone Manufacturing Corporation
    Inventors: Kazuhiko Kawano, Toru Tsunetsugu
  • Automatic telephone answering and recording machine
    Patent number: D291435
    Type: Grant
    Filed: July 10, 1985
    Date of Patent: August 18, 1987
    Assignee: Pioneer Ansafone Manufacturing Corporation
    Inventors: Kazuhiko Kawano, Toru Tsunetsugu