Patents by Inventor Shigeru Tsukui

Shigeru Tsukui 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: D299811
    Type: Grant
    Filed: February 13, 1986
    Date of Patent: February 14, 1989
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Shigeru Tsukui