Patents by Inventor Yasushi Koshimura

Yasushi Koshimura 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 device
    Patent number: 5742874
    Abstract: An charging apparatus includes a housing having a charging side adapted to face a photoreceptor; and a sharp-edged electrode charging member provided in the housing so that the photoreceptor is charged through the charging side by corona discharge from the sharp-edged electrode charging member. The charging apparatus further comprises an air introducing member provided a rear side opposite to the charging side and for introducing air into the housing.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: April 21, 1998
    Assignee: Konica Corporation
    Inventors: Yasushi Koshimura, Kiyohari Nakagama, Atsushi Ogane, Mitsugu Nemoto