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. 24, 1992
Filed:
May. 24, 1990
Applicant:
Inventors:
Jin Mizuguchi, Fribourg, CH;
Seiji Homma, Kawanishi, JP;
Hiroshi Yamamoto, Ikeda, JP;
Takashi Deno, Takarazuka, JP;
Assignee:
Japat Ltd., Basel, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 78 ; 430 58 ; 430 59 ; 430 83 ;
Abstract
The present invention provides an electrophotographic photoreceptor consisting essentially of an electrically conductive substrate and a photosensitive layer containing at least one charge transport material selected from the compound shown by formulae (1), (2), (3), (4), and (5): ##STR1## and at least one charge generating material selected from pyrrolopyrrole compounds of formula (6) ##STR2##