Patents by Inventor Kana Doumoto

Kana Doumoto 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).

  • Electric toothbrush with cap
    Patent number: D687226
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: August 6, 2013
    Assignee: Panasonic Corporation
    Inventors: Kana Doumoto, Chiyong Kim
  • Electric toothbrush with cap
    Patent number: D689697
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: September 17, 2013
    Assignee: Panasonic Corporation
    Inventors: Kana Doumoto, Naoki Yamaguchi