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:
Dec. 13, 1977
Filed:
May. 01, 1974
Applicant:
Inventors:
Tasuo Tamai, Minami-ashigara, JA;
Sadao Osawa, Minami-ashigara, JA;
Hajime Miyatuka, Minami-ashigara, JA;
Masaya Yamamoto, Minami-ashigara, JA;
Assignee:
Fuji Photo Film Co., Ltd., Minami-ashigara, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
252 / ; 96 / ; 427 15 ; 427 17 ;
Abstract
A liquid developer for electrophotography is disclosed which comprises toner particles, a regulating agent composed of a copolymer of a half-alkylamide of maleic acid and .alpha.-diisobutylene and an electric insulating carrier liquid and, if desired, an organic acid.