Patents by Inventor Erika Mizutani

Erika 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).

  • Writing instrument
    Patent number: D631095
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: January 18, 2011
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Erika Mizutani
  • Writing instrument
    Patent number: D631096
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: January 18, 2011
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Erika Mizutani