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. 25, 2005
Filed:
Jan. 31, 2002
Toshiyuki Ehara, Kanagawa, JP;
Junichiro Hashizume, Shizuoka, JP;
Masaya Kawada, Shizuoka, JP;
Tetsuya Karaki, Shizuoka, JP;
Hironori Ohwaki, Shizuoka, JP;
Kunimasa Kawamura, Shizuoka, JP;
Ryuji Okamura, Shizuoka, JP;
Kazuto Hosoi, Shizuoka, JP;
Toshiyuki Ehara, Kanagawa, JP;
Junichiro Hashizume, Shizuoka, JP;
Masaya Kawada, Shizuoka, JP;
Tetsuya Karaki, Shizuoka, JP;
Hironori Ohwaki, Shizuoka, JP;
Kunimasa Kawamura, Shizuoka, JP;
Ryuji Okamura, Shizuoka, JP;
Kazuto Hosoi, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A process for producing an electrophotographic photosensitive member comprising the steps of depositing a non-single crystal material composed basically of silicon atoms, on a cylindrical substrate in a deposition chamber, thereafter once taking the substrate with film out of the deposition chamber, then returning it to the deposition chamber, and thereafter again depositing thereon a non-single-crystal material composed basically of carbon atoms. In another embodiment, the process comprises the steps of depositing on a cylindrical substrate a photoconductive layer formed of a non-single crystal material, subjecting to surface processing the deposited film having protrusions present at its surface, and depositing on the processed surface a surface protective layer formed of a non-single-crystal material. Also disclosed is the electrophotographic photosensitive member thus obtained, and an electrophotographic apparatus having that member.