Patents by Inventor Sampei Seki

Sampei Seki 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: D312248
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: November 20, 1990
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Sampei Seki
  • Patent number: D316869
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: May 14, 1991
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Kouki Sugawara, Sampei Seki