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. 05, 2015
Filed:
Aug. 29, 2013
Applicant:
Kyocera Document Solutions Inc., Osaka-shi, JP;
Inventor:
Seiji Kikushima, Osaka, JP;
Assignee:
KYOCERA Document Solutions Inc., Osaka-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/093 (2006.01); G03G 9/087 (2006.01); G03G 9/08 (2006.01);
U.S. Cl.
CPC ...
G03G 9/0804 (2013.01); G03G 9/09307 (2013.01); G03G 9/09321 (2013.01); G03G 9/0935 (2013.01); G03G 9/09357 (2013.01); G03G 9/09392 (2013.01); G03G 9/08755 (2013.01);
Abstract
A toner for electrostatic-charge image development contains toner particles in which the surfaces of core particles, including a binder resin composed of a polyester resin, are coated with shell layers. The shell layer is formed of a resin composed of a copolymer of monomers including a monomer having a quaternary ammonium group and a (meth)acrylic copolymer. The molar ratio of units derived from a monomer having a quaternary ammonium group is 5 mol % or more and 35 mol % or less.