Patents by Inventor Keiji Sakata

Keiji Sakata 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).

  • Facsimile transceiver
    Patent number: D267799
    Type: Grant
    Filed: September 18, 1980
    Date of Patent: February 1, 1983
    Assignee: Sharp Corporation
    Inventors: Akira Esaki, Tsutomu Yamasaki, Keiji Sakata
  • Electronic calculator
    Patent number: D269624
    Type: Grant
    Filed: September 15, 1981
    Date of Patent: July 5, 1983
    Assignee: Sharp Corporation
    Inventor: Keiji Sakata
  • Electronic calculator
    Patent number: D270646
    Type: Grant
    Filed: July 10, 1981
    Date of Patent: September 20, 1983
    Assignee: Sharp Corporation
    Inventor: Keiji Sakata