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. 25, 1990
Filed:
Feb. 23, 1990
Applicant:
Inventor:
Masaaki Hiro, Kanagawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 58 ; 430 59 ; 430135 ;
Abstract
An electrophotographic photosensitive member having an electroconductive substrate and a photosensitive layer or layers contains pigment particles of 0.5 .mu. or below in size in an amount of 80% or more in weight or number of the total pigment. The particles of the above-mentioned size distribution are dispersed in a binder.