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:
Oct. 29, 1991
Filed:
Dec. 15, 1989
Kenichi Fujimori, Nakakoma, JP;
Yoshitaro Nakayama, Higashiyatsushiro, JP;
Hajime Suzuki, Kofu, JP;
Yoshiko Shima, Nakakoma, JP;
Shindengen Electric Manufacturing Co., Ltd, Tokyo, JP;
Yamanashi Electronics Co., Ltd., Yamanashi, JP;
Abstract
An electrophotographic photoreceptor comprising a support having thereon a photosensitive layer, in which said photosensitive layer contains a butadiene compound represented by the following general formula: ##STR1## wherein each of A.sub.1 -A.sub.4, which may be the same or different, is an alkyl group, a hydrazone compound represented by the following general formula [II]: ##STR2## wherein each of B.sub.1 and B.sub.2, which may be the same or different, is an alkyl group, a phenyl group, a benzyl group or a methoxyphenyl group, R.sub.1 is hydrogen, an alkyl group or O-R in which R is a straight-chain or branched alkyl, alkenyl or alkadienyl group having from 5 to 10 carbon atoms or an aralkyl group having from 7 to 10 carbon atoms, and R.sub.2 is an alkyl group, a phenyl group, a methoxy group, an ethoxy group, a benzyl group, a methoxyphenyl group, a tolyl group or a naphtyl group, and a monophenol compound. the photoreceptor is not destroyed or does not crack even when oil drops or fingerprints adhere to the photoreceptor.