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:
Apr. 05, 2016
Filed:
Jul. 13, 2010
Nobuyuki Yoshioka, Osaka, JP;
Takanori Kamoto, Osaka, JP;
Osamu Wada, Osaka, JP;
Tadashi Iwamatsu, Osaka, JP;
Nobuyuki Yoshioka, Osaka, JP;
Takanori Kamoto, Osaka, JP;
Osamu Wada, Osaka, JP;
Tadashi Iwamatsu, Osaka, JP;
SHARP KABUSHIKI KAISHA, Osaka, JP;
Abstract
A two-component developer is provided. The two-component developer includes a toner containing a binder resin, a colorant and a release agent, and a resin-coated carrier composed of a carrier core material and a resin coating layer formed on a surface of the carrier core material. The toner has an exposure rate of the release agent on the toner surface of 1.00% or above and 3.07% or below. The carrier core material has an apparent density of 1.86 g/cmor more and 2.45 g/cmor less. The exposure rate of the release agent of the toner and the apparent density of the carrier core material satisfy the following formula (1):≦−1.54+5.93  (1)wherein y represents the exposure rate of the release agent of the toner, and x represents the apparent density of the carrier core material.