Patents by Inventor Yoshimitsu Otaka

Yoshimitsu Otaka 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).

  • Photoconductor for xerography
    Patent number: 5422706
    Abstract: A photoconductor is disclosed, which comprises a conductive cylindrical support which is substantially not hollowed, the conductive cylindrical support having a drive transferring mechanism coaxially and unifiedly provided on at least one of the end portions thereof, the conductive cylindrical support having a photoconductive layer on the outer periphery. The moment of inertia I (g . cm.sup.2) of the substantially not-hollowed conductive support is in the range of 0.4.ltoreq.I.ltoreq.140 (g . cm.sub.2), the diameter thereof being in the range from 0.5 to 2.0 cm. When the relation of C/(S . .omega.).ltoreq.0.4 (where S (cm.sup.2) is the square measure of the portion of the photoconductive layer on the photoconductor; C (cal/.degree.C.) is the heat capacity of the substantially not-hollowed cylindrical support; and .omega. (rad/s) is the rotating speed in development) is satisfied, high quality images can be readily and stably obtained without damages of the drive system.
    Type: Grant
    Filed: October 23, 1991
    Date of Patent: June 6, 1995
    Assignees: Kabushiki Kaisha Toshiba, Tokyo Electric Co., Ltd.
    Inventors: Koichi Tsunemi, Masahiro Hosoya, Mitsunaga Saito, Hideyuki Nishizawa, Yoshimitsu Otaka, Mitsuharu Endo