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:
Aug. 30, 1988
Filed:
Mar. 09, 1987
Applicant:
Inventors:
Ken Hashimoto, Kanagawa, JP;
Masayuki Maruta, Kanagawa, JP;
Hidehiko Soyama, Kanagawa, JP;
Yukihiro Ishii, Kanagawa, JP;
Assignee:
Fuji Xerox Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430110 ; 430108 ; 430115 ;
Abstract
A method for controlling charging of toner particles and/or charge-imparting materials used in electrophotography is disclosed, which comprises using as a charge-exchange control agent an organic boron compound composed of a boron-containing organic anion component and a cation component. A color developer containing the charge-exchange control agent is also disclosed, which is free from variation of tone and reduction of transparency due to the addition of the charge-exchange control agent.