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:
Jan. 09, 1990
Filed:
Sep. 18, 1987
Masao Sugata, Yokohama, JP;
Tatsuo Takeuchi, Kawasaki, JP;
Hiroshi Satomura, Hatogaya, JP;
Yoshihiro Oguchi, Yokohama, JP;
Akio Maruyama, Tokyo, JP;
Keishi Saito, Nabari, 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;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An improved photosensitive member for use in electrophotography which is characterized by having a substrate and a photoconductive layer comprising a carbonic film, the nucleus of which matrix being carbon atom, which contains 30 atomic % or less of hydrogen atom and at least one selected from the elements of Group III and Group V of the Periodic Table, and which has an optical band gap of more than 1.5 eV and an electrical 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.