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:
Apr. 15, 2003
Applicants:
Yasunori Chigono, Shizuoka, JP;
Koichi Okuda, Tokyo, JP;
Yasushi Shimizu, Shizuoka, JP;
Masahiro Yoshida, Tokyo, JP;
Inventors:
Yasunori Chigono, Shizuoka, JP;
Koichi Okuda, Tokyo, JP;
Yasushi Shimizu, Shizuoka, JP;
Masahiro Yoshida, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 1502 ;
U.S. Cl.
CPC ...
Abstract
A charging member for charging a member to be charged and an image forming apparatus provided with the same have electrically conductive particles and an electrically conductive particle bearing member having elasticity and bearing the electrically conductive particles thereon, and the degree of cohesion of the electrically conductive particles is 0.1 to 85%. Thereby, the non-uniformity of a halftone image peculiar to particle charging can be improved.