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. 18, 2010
Filed:
Mar. 24, 2006
Applicants:
Norikazu Fujimoto, Susono, JP;
Yasukazu Ayaki, Yokohama, JP;
Shigeto Tamura, Suntoh-gun, JP;
Tetsuya Yano, Tokyo, JP;
Inventors:
Norikazu Fujimoto, Susono, JP;
Yasukazu Ayaki, Yokohama, JP;
Shigeto Tamura, Suntoh-gun, JP;
Tetsuya Yano, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A charge control resin containing a copolymer which has a unit having a sulfonic acid ester group having a specific structure and has the unit in specific proportions. The charge control resin can provide a toner with superior charging performance. Also disclosed is a toner having such a charge control resin.