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:
Jul. 16, 2013
Filed:
Jun. 26, 2009
Masaki Watanabe, Numazu, JP;
Hiroshi Yamashita, Numazu, JP;
Tsuyoshi Sugimoto, Mishima, JP;
Naohiro Watanabe, Shizuoka-ken, JP;
Shinichi Wakamatsu, Numazu, JP;
Masaki Watanabe, Numazu, JP;
Hiroshi Yamashita, Numazu, JP;
Tsuyoshi Sugimoto, Mishima, JP;
Naohiro Watanabe, Shizuoka-ken, JP;
Shinichi Wakamatsu, Numazu, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A toner produced by a method including dissolving or dispersing toner components comprising a colorant and at least one of a binder resin and a precursor thereof in an organic solvent to prepare a toner components liquid, dispersing the toner components liquid in an aqueous medium including a surfactant, a particulate resin A having the same polarity as the surfactant and a volume average particle diameter of from 5 to 50 nm, and a particulate resin B having a volume average particle diameter of from 10 to 500 nm to form liquid droplets, and removing the organic solvent from the liquid droplets. The particulate resin B is incompatible with the binder resin and swells in the organic solvent.