Patents by Inventor Chujirou Yokoyama

Chujirou Yokoyama 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).

  • Toner bottle
    Patent number: D451949
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: December 11, 2001
    Assignee: Minolta Co., Ltd.
    Inventors: Kouichi Aritomo, Chujirou Yokoyama, Takeru Kinoshita