Patents by Inventor Takayo Sugiwaka

Takayo Sugiwaka 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).

  • Patent number: D256240
    Type: Grant
    Filed: September 29, 1978
    Date of Patent: August 5, 1980
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takayo Sugiwaka, Kiyoshi Suzuki, Masaki Nishioka, Hiroaki Nishiyori
  • Patent number: D265650
    Type: Grant
    Filed: May 15, 1980
    Date of Patent: August 3, 1982
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takayo Sugiwaka, Yoshiaki Kawata, Tadashi Sumino