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. 21, 2006
Filed:
Jul. 01, 2003
Applicants:
Kanji Yokomori, Kanagawa, JP;
Kojiro Yasui, Shizuoka, JP;
Tachio Kawai, Kanagawa, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electrophotographic photosensitive drum for use in an electrophotographic image forming apparatus includes a cylinder and flanges provided on end portions in the axial direction of the cylinder. One flange has an outer peripheral portion, a hole portion and ribs, and the flange is caulked by bending part of the cylinder inwardly in the radial direction at two positions opposing each other across the hole portion, those two positions being other than positions at which the ribs intersect the outer peripheral portion in the extending direction of the ribs.