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:
May. 27, 2008
Filed:
Jul. 23, 2004
Applicants:
Michiyo Sekiya, Shizuoka, JP;
Hiroki Uematsu, Chiba, JP;
Shuji Ishii, Chiba, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 5/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides an electrophotographic photosensitive member having a support and a photosensitive layer on the support, the electrophotographic photosensitive member having a surface with a universal hardness (HU) in the range of between 150 and 220 N/mmand an elastic deformation ratio in the range of between 50 and 65%. The present invention also provides a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member.