Patents by Inventor Yujiro Nakata

Yujiro Nakata 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).

  • Ball pen
    Patent number: D532454
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: November 21, 2006
    Assignee: Zebra Co., Ltd.
    Inventors: Keiko Togawa, Matsuko Miyashita, Yujiro Nakata