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:
Mar. 10, 1992
Filed:
Nov. 13, 1989
Applicant:
Inventors:
Hiroyuki Nomori, Hachioji, JP;
Katumi Matuura, Hachioji, JP;
Assignee:
Konica Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
430 96 ; 430 58 ; 525479 ;
Abstract
An electrophotographic photoreceptor is disclosed which has a photosensitive layer comprising block a copolymer composed of a polymer block A comprising a polysilane and a polymer block B comprising a polymer of anionic polymerizable monomers; or a graft copolymer composed of the polymer block A and a polymer block C comprising another polymer as a positive hole transportation material. The photoreceptor is excellent in the mechanical strength, stable chargeability and photosensitivity.