Patents by Inventor Katsuhiro Tozuka

Katsuhiro Tozuka 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).

  • Propeller fan
    Patent number: D725251
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: March 24, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shingo Hamada, Hiroshi Yoshikawa, Katsumi Shibayama, Noriko Semii, Katsuhiro Tozuka, Hiroaki Makino
  • Propeller fan
    Patent number: D725252
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: March 24, 2015
    Assignee: Mitsubishi Electronic Corporation
    Inventors: Shingo Hamada, Hiroshi Yoshikawa, Katsumi Shibayama, Noriko Semii, Katsuhiro Tozuka, Hiroaki Makino
  • Propeller fan
    Patent number: D787035
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: May 16, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shingo Hamada, Katsumi Shibayama, Takashi Kitazumi, Katsuhiro Tozuka, Hiroshi Yoshikawa, Hiroaki Makino, Hidetomo Nakagawa