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:
Feb. 23, 1993
Filed:
Mar. 22, 1991
Applicant:
Inventor:
Yukihiro Ishii, Kanagawa, JP;
Assignee:
Fuji Xerox Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430110 ; 430109 ; 430105 ;
Abstract
A toner for developing an electrostatic image is disclosed, essentially comprising as a colorless charge electrification controlling agent causing no environmental pollution, a complex compound containing a silicon atom to which at least 2 mols of at least one of a chelating monocyclic or polycyclic aromatic diol, monocyclic or polycyclic aromatic hydroxycarboxylic acid, or monocyclic or polycyclic aromatic dicarboxylic acid is coordinated per mol of the silicon atom. The toner exhibits stable charging properties against environmental changes or on repeated use.