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. 12, 1989
Filed:
Sep. 14, 1987
Applicant:
Inventors:
Katsuhiko Tanaka, Tokyo, JP;
Hiroshi Fukumoto, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
4301066 ; 430102 ; 430110 ; 430903 ; 556 88 ;
Abstract
A triboelectrically chargeable composition for use in development of electrostatic latent images. The composition contains an organotin oxide represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 are the same or different groups selected from cycloalkyl groups, substituted cycloalkyl groups, aralkyl groups and substituted aralkyl groups. The composition is embodied typically as a positively chargeable toner and also as a charge-imparting material for charging a toner.