Patents by Inventor Shuuji Oonaka

Shuuji Oonaka 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).

  • LED bulb
    Patent number: D737479
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: August 25, 2015
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Shuuji Oonaka, Jouji Kondou
  • LED bulb
    Patent number: D743058
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: November 10, 2015
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Shuuji Oonaka, Kouta Yoshizawa, Keisuke Tajima
  • LED bulb
    Patent number: D744123
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: November 24, 2015
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hiroyuki Ooshima, Keisuke Tajima, Shuuji Oonaka