Patents by Inventor Kazuo Kotsuka

Kazuo Kotsuka 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).

  • Coat hanger
    Patent number: D328195
    Type: Grant
    Filed: March 6, 1989
    Date of Patent: July 28, 1992
    Assignee: Sugatsune Industrial Co., Ltd.
    Inventor: Kazuo Kotsuka
  • Damper stay for furniture doors
    Patent number: D329190
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: September 8, 1992
    Assignee: Sugatsune Industrial Co., Ltd.
    Inventor: Kazuo Kotsuka