Patents by Inventor Sinichiro Doi

Sinichiro Doi 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: D248551
    Type: Grant
    Filed: June 29, 1977
    Date of Patent: July 18, 1978
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha (Toyota Motor Co., Ltd.)
    Inventors: Iwae Sekido, Sinichiro Doi
  • Patent number: D250705
    Type: Grant
    Filed: June 29, 1977
    Date of Patent: January 2, 1979
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Sinichiro Doi, Iwae Sekido