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.

Date of Patent:
Feb. 14, 1995

Filed:

Jul. 21, 1993
Applicant:
Inventors:

Kazufumi Tomita, Minami Ashigara, JP;

Izuru Matsui, Minami Ashigara, JP;

Koichi Takashima, Minami Ashigara, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430138 ; 430109 ;
Abstract

A capsule toner and a process for producing the same, the capsule toner comprising a core material containing a fixing component, an outer shell covering the core material, and a chargeable substance adhered on the surface of the outer shell, the outer shell containing a polyurea resin and/or a polyurethane resin each obtained from an aliphatic polyisocyanate and an aromatic polyisocyanate. The capsule toner exhibits satisfactory charging properties while surely holding the fixing component inside to provide high quality images with excellent fixing properties.


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