Patents by Inventor Harumitsu Mizuishi

Harumitsu Mizuishi 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).

  • Cleaning assistant used with a photosensitive drum unit for lowering charge memory
    Patent number: 5463456
    Abstract: A photosensitive drum unit for an electrophotographic apparatus, of the type of contacting a cleaning blade to the photosensitive drum is disclosed, in which a cleaning assistant composed of a lubricant capable of lowering the frictionally charged potential of the photosensitive drum caused by the friction of the photosensitive drum and the cleaning blade to not higher than 100 V is attached to the surface of the photosensitive drum, the cleaning blade or both.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: October 31, 1995
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yuichi Yashiki, Masahiko Hodumi, Yuzuru Ohki, Takashi Ito, Fumitaka Nakjajima, Masakazu Mori, Takayoshi Aoki, Harumitsu Mizuishi, Yuusaku Shibuya