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:
Oct. 11, 2005
Filed:
May. 14, 2003
Tadashi Doujo, Shizuoka, JP;
Yuichi Mizoh, Ibaraki, JP;
Nene Shibayama, Shizuoka, JP;
Yusuke Hasegawa, Ibaraki, JP;
Tadashi Doujo, Shizuoka, JP;
Yuichi Mizoh, Ibaraki, JP;
Nene Shibayama, Shizuoka, JP;
Yusuke Hasegawa, Ibaraki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A toner comprises toner particles comprising at least a binder resin, a colorant, and a sulfur-containing resin, in which the toner particles comprise the sulfur-containing resin so as to satisfy a relation of; 0.50≦I/T≦0.95 where Tdenotes a content of sulfur in the toner particles, and Idenotes a content of sulfur in isopropyl alcohol insoluble components of the toner particles, whereby it is possible to obtain a high quality image having an excellent developing resistance regardless of the surrounding conditions and a uniform charge amount distribution regardless of processing speed.