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:
May. 22, 1979
Filed:
Mar. 18, 1975
Applicant:
Inventors:
Akio Mukoh, Hitachi, JP;
Yasuki Mori, Hitachi, JP;
Hirosada Morishita, Hitachi, JP;
Nobuhiko Shito, Hitachi, JP;
Shigeyoshi Tanaka, Hitachi, JP;
Assignees:
Hitachi, Ltd., BOTH OF, JP;
Hitachi Chemical Company, Ltd., BOTH OF, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
427 15 ; 96 / ; 252 / ; 526317 ; 526320 ;
Abstract
A liquid developer for electro photography which comprises a coloring agent, a coating agent, a resistivity controlling agent and a carrier liquid which disperses or dissolves the said three agents is suitable for providing high reproducibility of images when at least one of the following copolymers are used as said coating agent: