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:
Oct. 29, 1991
Filed:
Oct. 13, 1989
Applicant:
Inventors:
Kazuo Tsubuko, Numazu, JP;
Shinichi Kuramoto, Numazu, JP;
Kazuhiko Umemura, Susono, JP;
Hidemi Uematsu, Fuji, JP;
Assignee:
Ricoh Company Ltd., Ohta, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430109 ; 430110 ;
Abstract
A toner for developing latent electrostatic images comprising a coloring agent and a fluorine-contained graft copolymer which is prepared by grafting a fluorine-contained monomer to a main polymer comprising a repeating unit represented by formula (I): ##STR1## wherein R and R' each independently represent H or CH.sub.3, and m represent san integer of 1 to 20.
Tsubuko, Kazuo. (1991). Toner for electrophotography including fluorine contained graft copolymer (U.S. Patent No. 5061587). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5061587
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile