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:
Jan. 05, 1988
Filed:
Apr. 17, 1986
Applicant:
Inventors:
Hideyuki Takahashi, Yokohama, JP;
Masataka Yamashita, Kawasaki, JP;
Masakazu Matsumoto, Yokohama, JP;
Minoru Mabuchi, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 58 ; 430 59 ; 430 96 ;
Abstract
An electrophotographic photosensitive member comprises at least a charge generation layer and a charge transport layer on an electroconductive substrate, wherein said charge generation layer contains, as a binder, a polyvinylacetal resin obtained by acetalization reaction of polyvinyl alcohol and aldehyde compound represented by the following general formula:
Takahashi, Hideyuki. (1988). Electrophotographic photosensitive member containing polyvinylarylal (U.S. Patent No. 4717636). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4717636
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