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:
Jun. 08, 1993
Filed:
Dec. 20, 1990
Applicant:
Inventors:
Fumio Yamada, Yokosuka, JP;
Hiromitsu Kikuchi, Tokyo, JP;
Tsuyoshi Yamamoto, Yokohama, JP;
Jun Saito, Kawasaki, JP;
Shizuo Kitahara, Kawaguchi, JP;
Assignees:
Nippon Zeon Co., Ltd., Tokyo, JP;
Casco Nobel AB, Stockholm, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430137 ; 430111 ; 524718 ; 524719 ; 524720 ;
Abstract
Disclosed herein is a process for the preparation of a toner, which comprises dissolving or dispersing a compound having at least one >C.dbd.N.sup..sym. < bond in its molecule and a colorant in a vinyl monomer and then suspension-polymerizing the vinyl monomer in an aqueous dispersion medium.