The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 1990
Filed:
Sep. 25, 1987
Masao Sugata, Yokohama, JP;
Tohru Den, Atsugi, JP;
Susumu Ito, Tokyo, JP;
Keiji Hirabayashi, Tokyo, JP;
Keiko Ikoma, Yokohama, JP;
Noriko Kurihara, Kawasaki, JP;
Kuniji Osabe, Tama, JP;
Tatsuo Takeuchi, Kawasaki, JP;
Hiroshi Satomura, Hatogaya, JP;
Yoshihiro Oguchi, Yokohama, JP;
Akio Maruyama, Tokyo, JP;
Keishi Saito, Nabari, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An improved photosensitive member for use in electrophotography which comprises a substrate and a light receiving layer having a charge carrier generation layer and a charge carrier transportation layer composed of a carbonic film the nucleus of which matrix being carbon atom, which contains 40 atomic % or less of hydrogen atom and which possesses an optical band gap of 1.5 eV or more and an electric conductivity of 10.sup.-11 .OMEGA..sup.-1 cm.sup.-1 or less. It is always and substantially stable regardless of the changes in use environments and it enables to make highly resolved images with a clear half-tone which are highly dense and quality at high speed.