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:
Mar. 18, 2003
Filed:
May. 18, 2001
Masaya Kawada, Shizuoka, JP;
Toshiyuki Ehara, Kanagawa, JP;
Tetsuya Karaki, Shizuoka, JP;
Hironori Ohwaki, Shizuoka, JP;
Kunimasa Kawamura, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
To provide a Si photosensitive member and an image forming apparatus which prevents toner adherence at the time of cleaning and forms an excellent image, an electrophotographic photosensitive member comprising a photoconductive layer including amorphous Si and a surface protective layer which are formed on an electroconductive substrate has a difference in the height of concave and convex corresponding to 90% and 50% of a cumulative frequency of the height of concave and convex with respect to the most deepest point of surface roughness concave and convex within a range of 10 &mgr;m×10 &mgr;m of the photosensitive member as a standard which is set within a range of 3 nm to 200 nm.