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. 16, 1983
Filed:
Nov. 09, 1981
Yoshio Takasu, Tama, JP;
Norie Takebayashi, Tokyo, JP;
Kiyoshi Sakai, Mitaka, JP;
Minoru Mabuchi, Tokyo, JP;
Shozo Ishikawa, Sayama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrophotographic photosensitive member is characterized by having a layer containing at least one hydrazone compound represented by the following formula [I] or [II]: ##STR1## wherein R.sub.11 and R.sub.12 represent hydrogen, halogen, substituted or unsubstituted alkyl, alkoxy, substituted or unsubstituted aryloxy, or substituted amino, provided that at least one of R.sub.11 and R.sub.12 is substituted amino or alkoxy; R.sub.13 and R.sub.14 represent substituted or unsubstituted alkyl or substituted or unsubstituted aryl, provided that at least one of R.sub.13 and R.sub.14 is substituted or unsubstituted aryl, or R.sub.13 and R.sub.14, together with the nitrogen atom which links them, represent a nitrogen-containing heterocyclic ring; R.sub.15, R.sub.16, R.sub.17, and R.sub.18 represent hydrogen, halogen, substituted or unsubstituted alkyl, alkoxy, substituted or unsubstituted aryloxy, or substituted amino; m and n represent 0 or 1; R.sub.21 and R.sub.22 represent substituted or unsubstituted alkyl, or substituted or unsubstituted aryl, or R.sub.21 and R.sub.22, together with the nitrogen atom which links them, represent a five- or six-membered ring; R.sub.23 and R.sub.24 represent substituted or unsubstituted alkyl, substituted or unsubstituted aryl, or R.sub.23 and R.sub.24, together with the nitrogen atom which links them, represent a five- or six-membered ring; R.sub.25 and R.sub.26 represent hydrogen, halogen, nitro, substituted or unsubstituted alkyl, alkoxy, substituted or unsubstituted aryloxy, substituted or unsubstituted acyl, or substituted or unsubstituted amino; and R represents divalent organic residue.