Patents by Inventor Takayasu Nakao

Takayasu Nakao 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: D598490
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: August 18, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeroh Kurenuma, Nobuyuki Taguchi, Masayuki Yamane, Takayasu Nakao
  • Toner cartridge holder
    Patent number: D598949
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: August 25, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeroh Kurenuma, Nobuyuki Taguchi, Masayuki Yamane, Takayasu Nakao
  • Toner cartridge
    Patent number: D600275
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: September 15, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeroh Kurenuma, Nobuyuki Taguchi, Masayuki Yamane, Takayasu Nakao
  • Toner cartridge holder
    Patent number: D606583
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: December 22, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeroh Kurenuma, Nobuyuki Taguchi, Masayuki Yamane, Takayasu Nakao
  • Toner cartridge
    Patent number: D607044
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: December 29, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeroh Kurenuma, Nobuyuki Taguchi, Masayuki Yamane, Takayasu Nakao
  • Toner cartridge holder
    Patent number: D617828
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: June 15, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeroh Kurenuma, Nobuyuki Taguchi, Masayuki Yamane, Takayasu Nakao
  • Toner cartridge holder
    Patent number: D619642
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: July 13, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeroh Kurenuma, Nobuyuki Taguchi, Masayuki Yamane, Takayasu Nakao
  • Toner cartridge holder
    Patent number: D619643
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: July 13, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeroh Kurenuma, Nobuyuki Taguchi, Masayuki Yamane, Takayasu Nakao