Patents by Inventor Toshimasa Mizutani

Toshimasa Mizutani 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: D421172
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: February 22, 2000
    Assignee: Elephant Chain Block Company Limited
    Inventors: Toshimasa Mizutani, Yosio Ueno