Patents by Inventor Tadayoshi Nishihama

Tadayoshi Nishihama 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).

  • Charging apparatus having auxiliary charger rubbing against image bearing member
    Patent number: 6963709
    Abstract: A charging apparatus has a movable image bearing member, a first charging member for charging the image bearing member, and a second charging member provided upstream of the first charging member with respect to the direction of movement of the image bearing member, the second charging member having an elastic rotary member rubbing against the image bearing member.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: November 8, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tadayoshi Nishihama, Tokihiko Ogura, Hisataka Hisakuni
  • Charging apparatus having auxiliary charger rubbing against image bearing member
    Patent number: 6847797
    Abstract: A charging apparatus has a movable image bearing member, a first charging member for charging the image bearing member, and a second charging member provided upstream of the first charging member with respect to the direction of movement of the image bearing member, the second charging member having an elastic rotary member rubbing against the image bearing member.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: January 25, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tadayoshi Nishihama, Tokihiko Ogura, Hisataka Hisakuni
  • Charging apparatus having auxiliary charger rubbing against image bearing member
    Publication number: 20050013631
    Abstract: A charging apparatus has a movable image bearing member, a first charging member for charging the image bearing member, and a second charging member provided upstream of the first charging member with respect to the direction of movement of the image bearing member, the second charging member having an elastic rotary member rubbing against the image bearing member.
    Type: Application
    Filed: August 18, 2004
    Publication date: January 20, 2005
    Applicant: Canon Kabushiki Kaisha
    Inventors: Tadayoshi Nishihama, Tokihiko Ogura, Hisataka Hisakuni
  • Charging apparatus having auxiliary charger rubbing against image bearing member
    Publication number: 20040018029
    Abstract: A charging apparatus has a movable image bearing member, a first charging member for charging the image bearing member, and a second charging member provided upstream of the first charging member with respect to the direction of movement of the image bearing member, the second charging member having an elastic rotary member rubbing against the image bearing member.
    Type: Application
    Filed: July 14, 2003
    Publication date: January 29, 2004
    Applicant: Canon Kabushiki Kaisha
    Inventors: Tadayoshi Nishihama, Tokihiko Ogura, Hisataka Hisakuni