Patents by Inventor Harumi Kugo

Harumi Kugo 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).

  • Electrophotographic apparatus performing image exposure and development simultaneously
    Patent number: 5963762
    Abstract: An electrophotographic apparatus which simultaneously performs image exposure and development, including an electrophotographic photosensitive body having a conductive layer, an electrophotoconductive layer, and an electric charge supply layer for contacting a developer sequentially formed on a translucent substrate, wherein a value of the surface energy of the outer layer of the photosensitive body is 30 dyne/cm or less in order to present fogging generated during development.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: October 5, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tadashi Furuya, Junji Araya, Hideyuki Yano, Harumi Kugo, Osamu Iwasaki
  • Electrophotographic apparatus for performing image exposure and development simultaneously
    Patent number: 5587773
    Abstract: An electrophotographic apparatus for simultaneously performing image exposure and development including an electrophotographic photosensitive body comprising a conductive layer and an electrophotographic photosensitive layer formed on the translucent substrate. An optical system is provided for exposing the image from the side of the translucent substrate of the photosensitive body, and a developer apparatus is arranged opposing to the side of photosensitive layer of the exposure position of the photosensitive body for supplying developer charged with the developing bias.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: December 24, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideyuki Yano, Junji Araya, Yukihiro Ozeki, Harumi Kugo, Katsuhiro Sakaizawa, Tadashi Furuya, Osamu Iwasaki