Patents by Inventor Jun Sekine

Jun Sekine 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).

  • Auxiliary toilet seat for a child
    Patent number: D307629
    Type: Grant
    Filed: December 16, 1987
    Date of Patent: May 1, 1990
    Assignee: Combi Co., Ltd.
    Inventors: Takehiko Takahashi, Yoshiyasu Ishii, Susumu Matsumoto, Jun Sekine