Patents by Inventor Masakazu Taoka

Masakazu Taoka 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).

  • Toner cartridge
    Patent number: D409653
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: May 11, 1999
    Assignee: Mita Industrial Co., Ltd.
    Inventors: Teruki Kishimoto, Masakazu Taoka
  • Toner supplying cartridge for an image forming apparatus
    Patent number: D428050
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: July 11, 2000
    Assignee: Mita Industrial Co., Ltd.
    Inventors: Shigeru Nishiyama, Masakazu Taoka
  • Developer unit for an image forming apparatus
    Patent number: D428435
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: July 18, 2000
    Assignee: Mita Industrial Co., Ltd.
    Inventors: Yoshizo Kawamori, Takeshi Uemura, Masakazu Taoka