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:
Sep. 19, 1989
Filed:
Nov. 01, 1988
Applicant:
Inventors:
Shoji Ohtani, Osaka, JP;
Yukiya Sato, Wakayama, JP;
Kazunari Takemura, Wakayama, JP;
Rikio Tsushima, Wakayama, JP;
Assignee:
Kao Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430137 ; 430110 ;
Abstract
A toner composition is obtained by the dispersion polymerization of a monomer in the presence of a charge-controlling agent, a colorant and a specified dispersant of a higher fatty acid salt of a long-chain alkyl or hydroxyalkyl amine, a polyoxyalkene-phenyl or alkylphenyl-ether or a polyethyleneimine. The toner composition is useful for developing an electrostatic image in an electrophotographic process and the like.