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. 07, 2017
Filed:
Oct. 23, 2013
Tsuyoshi Nozaki, Osaka, JP;
Takuya Kadota, Hyogo, JP;
Yoshihiro Mikuriya, Hyogo, JP;
Yoshimichi Ishikawa, Hyogo, JP;
Kazuoki Fuwa, Hyogo, JP;
Tomohiro Fukao, Osaka, JP;
Tomoharu Miki, Osaka, JP;
Tsuyoshi Nozaki, Osaka, JP;
Takuya Kadota, Hyogo, JP;
Yoshihiro Mikuriya, Hyogo, JP;
Yoshimichi Ishikawa, Hyogo, JP;
Kazuoki Fuwa, Hyogo, JP;
Tomohiro Fukao, Osaka, JP;
Tomoharu Miki, Osaka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A toner is prepared by wet granulation methods, including a monoester wax having carbon atoms of from 36 to 46 on average as a release agent. The toner has a DSC endothermic energy amount (ΔH1) originating from the wax of from 10 to 12 mJ/mg and a DSC endothermic energy amount (ΔH2) originating from the wax of from 0.6 to 0.9 times as much as ΔH1 after a part of the wax is separated by hexane extraction from the toner. The hexane extraction includes mixing 1 g of the toner in 7 ml of n-hexane to prepare a mixture; stirring the mixture at 120 rpm for 1 min by a pot mill to prepare a dispersion; and subjecting the dispersion to suction filtration.