Patents by Inventor Masaharu Tarao

Masaharu Tarao 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).

  • Dialing pad
    Patent number: D270637
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: September 20, 1983
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Hisao Fukushima, Masaharu Tarao
  • Telephone set
    Patent number: D271489
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: November 22, 1983
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Hisao Fukushima, Masaharu Tarao
  • Telephone set
    Patent number: D271490
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: November 22, 1983
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Hisao Fukushima, Masaharu Tarao
  • Telephone set
    Patent number: D277377
    Type: Grant
    Filed: June 17, 1982
    Date of Patent: January 29, 1985
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Masaharu Tarao, Katsuhito Watanabe