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. 26, 1989
Filed:
Jan. 19, 1988
Applicant:
Inventor:
Noriyuki Hosoi, Fujinomiya, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430110 ; 430137 ; 430138 ;
Abstract
An improved electrostatographic toner comprises toner particles which comprise a colorant and a binder, wherein to a surface of said toner particle are attached polymer chains formed by a graft polymerization reaction of a monomer having two or more polymerizable double bonds and a monomer having a charge-control group and a polymerizable double bond.
Hosoi, Noriyuki. (1989). Toner for use in electrostatography (U.S. Patent No. 4869990). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4869990
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile