Patents by Inventor Mayo Shimada

Mayo Shimada 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).

  • Fountain pen
    Patent number: D728024
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: April 28, 2015
    Assignee: Kabushiki Kaisha Pilot Corporation
    Inventor: Mayo Shimada