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:
Feb. 01, 2011
Filed:
May. 29, 2006
Applicants:
Tatsurou Yoshida, Tsukuba, JP;
Eri Yagi, Tsukuba, JP;
Inventors:
Tatsurou Yoshida, Tsukuba, JP;
Eri Yagi, Tsukuba, JP;
Assignee:
Canon Kasei Kabushiki Kaisha, Tsukuba-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08F 120/10 (2006.01); G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
To provide a positive charge control resin with which an electrophotographic functional component part coming into contact with a toner can be made chargeable in a polarity reverse to the polarity of the toner, and which has superior dispersibility in, and compatibility with, a main binder. The present invention is a positive charge control resin having a copolymer obtained by polymerizing specific acrylate or methacrylate monomer, amino-group-containing monomer(s) and carboxyl-group-containing monomer(s) as copolymerization components.