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:
May. 26, 1992
Filed:
Oct. 31, 1990
Yoshimi Kojima, Nara, JP;
Satoshi Katayama, Tenri, JP;
Yoshihide Shimoda, Nara, JP;
Hiroshi Sugimura, Osaka, JP;
Eiji Imada, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
1,2,4,5-Benzoylenebis(naphto[1,8-de]pyrimidine) compounds of the followig formula (I) or (II): ##STR1## wherein R and R' are, the same or different, hydrogen atom, a halogen atom, hydroxyl group, nitro group, cyano group, an alkyl group which may be substituted, an alkoxyl group which may be substituted, an aryl group which may be substituted, an aralkyl group which may be substituted, a carboxyl group which may be esterified or a carbamoyl group which may be substituted and m and n each are an integer from 1 to 6, and photosensitive members for electrophotography having a photosensitive layer containing them.