Patents by Inventor Koji Goshima

Koji Goshima 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 photoreceptor, image forming apparatus and image forming process
    Patent number: 5795690
    Abstract: An electrophotographic photoreceptor is disclosed which comprises an electrically-conductive substrate having provided thereon an undercoat layer and a photosensitive layer, wherein said undercoat layer comprises a crosslinkable matrix and an electron-transporting material.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: August 18, 1998
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Ichiro Takegawa, Hidemi Nukada, Hiroshi Yamamoto, Koji Goshima, Takaaki Kimura
  • Electrophotographic photoreceptor
    Patent number: 5763127
    Abstract: An electrophotographic photoreceptor is disclosed which comprises an electroconductive support, a first interlayer formed on the support and containing low-resistance electroconductive particles having a specific resistance of from 10.degree. to 10.sup.4 .OMEGA.cm, a second interlayer formed on the first interlayer and containing high-resistance electroconductive particles having a specific resistance of from 10.sup.4 to 10.sup.8 .OMEGA.cm, and a photosensitive layer formed on the second interlayer. In the electrophotographic photoreceptor, in which the interlayers have an increased thickness for hiding defects present on the support and contain electroconductive particles dispersed therein, the photosensitive layer is free from the electrification performance decrease caused by charge injection thereinto and the interlayers have excellent leak-preventive properties.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: June 9, 1998
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Koji Goshima, Ichiro Takegawa