Patents by Inventor Harufumi Itoh

Harufumi Itoh 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).

  • Print cartidge and image forming apparatus employing the same
    Patent number: 5128715
    Abstract: A print cartridge having: a housing; an image bearing member rotatably supported on the housing; and a power transmit member for connecting the image bearing member to a drive shaft of metal projected from a body of an apparatus. The print cartridge is withdrawable from the apparatus body. The image bearing member includes a cylindrical drum and a flange fixedly mounted on one end of the drum; the flange having a metal portion provided at a central portion thereof, and a resin portion provided around the metal portion. The metal portion has at an axis of rotation of the flange a shaft support portion for rotatably supporting the drive shaft. The metal portion has a first fitting portion provided on one side thereof directed toward the power transmit member. The power transmit member has a second fitting portion provided on one side thereof directed toward the flange. The first fitting portion and the second fitting portion are fitted together in the direction of rotation of the image bearing member.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: July 7, 1992
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tetsuya Furuyama, Harufumi Itoh, Kohyu Shigemori, Hideaki Ohike, Tsutomu Tetsuka