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. 27, 2007
Filed:
Jul. 16, 2002
Kunitoshi Sugiyama, Numazu, JP;
Yoshihiko Itoh, Fuji, JP;
Hideyuki Santoh, Numazu, JP;
Kunio Arai, Sendai, JP;
Tadafumi Ajiri, Sendai, JP;
Kunitoshi Sugiyama, Numazu, JP;
Yoshihiko Itoh, Fuji, JP;
Hideyuki Santoh, Numazu, JP;
Kunio Arai, Sendai, JP;
Tadafumi Ajiri, Sendai, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A method for use in two-components electrostatic image developers is disclosed, in which secure separation of a carrier coating resinous materials from a core magnetic material is achieved without affecting the properties of the core materials through process steps benign to the environment in super- or sub-critical water compositions under the conditions of a temperature of 300° C. or more and a pressure of 20 MPa. The core magnetic material is subsequently recycled for forming carrier. This method may also be useful for processing waste including magnetic materials with silicone resin coating.