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:
Aug. 24, 1999
Filed:
Oct. 30, 1997
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An electrophotographic photoconductor has an electroconductive support and a photoconductive layer provided thereon, containing at least one phenol compound of formula (1): ##STR1## wherein R.sup.1 to R.sup.4 and R.sup.11 to R.sup.14 are each independently a hydrogen atom, an alkyl group which may have a substituent, an alkoxyl group which may have a substituent, an alkoxycarbonyl group which may have a substituent, an aryl group which may have a substituent, nitro group, cyano group or a halogen atom; and Y is ##STR2## in which R is a hydrogen atom, an alkyl group which may have a substituent, an alkoxyl group which may have a substituent, an alkoxycarbonyl group which may have a substituent, an aryl group which may have a substituent, nitro group, cyano group, hydroxyl group or a halogen atom, and n is an integer of 0 to 5, or --(CH.dbd.CH).sub.x --, in which x is an integer of 0 to 5.