Patents by Inventor Masaaki Koutoku

Masaaki Koutoku 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).

  • Oven
    Patent number: D669297
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: October 23, 2012
    Assignee: Panasonic Corporation
    Inventors: Hiroyuki Tanaka, Masaaki Koutoku
  • Washing and drying machine
    Patent number: D846210
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: April 16, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Haruka Tojo, Masaaki Koutoku, Hiroshi Sugimoto