Patents by Inventor Nobuyoshi Hirosawa

Nobuyoshi Hirosawa 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).

  • Digital clock
    Patent number: D249651
    Type: Grant
    Filed: December 8, 1976
    Date of Patent: September 26, 1978
    Assignee: Kabushiki Kaisha Sankyo Seiki Seisakusho
    Inventor: Nobuyoshi Hirosawa
  • Digital clock
    Patent number: D249775
    Type: Grant
    Filed: December 8, 1976
    Date of Patent: October 3, 1978
    Assignee: Kabushiki Kaisha Sankyo Seiki Seisakusho
    Inventor: Nobuyoshi Hirosawa