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:
Mar. 03, 2015
Filed:
Sep. 24, 2012
Takayuki Shimizu, Shizuoka, JP;
Kazumi Ohtaki, Shizuoka, JP;
Shinichiro Yagi, Shizuoka, JP;
Takeshi Sako, Shizuoka, JP;
Idzumi Okajima, Shizuoka, JP;
Takayuki Shimizu, Shizuoka, JP;
Kazumi Ohtaki, Shizuoka, JP;
Shinichiro Yagi, Shizuoka, JP;
Takeshi Sako, Shizuoka, JP;
Idzumi Okajima, Shizuoka, JP;
Ricoh Company, Ltd., Tokyo, JP;
National University Corporation Shizuoka University, Shizuoka-shi, JP;
Abstract
A method for regenerating a carrier core material for electrophotography, including: treating a carrier for electrophotography including a carrier core material for electrophotography and a coating layer on a surface of the carrier core material for electrophotography with an aqueous solution including an oxidant in a subcritical state or a supercritical state having a temperature of 280° C. or greater and a density of 0.20 g/cmor greater, wherein an amount of the oxidant in a total amount of the aqueous solution used in the treating is greater than 0.05 parts by mass with respect to 1 part by mass of the carrier for electrophotography to be treated in the treating.