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:
Sep. 04, 1990
Filed:
Nov. 01, 1988
Keiichi Endo, Hitachi, JP;
Yasushi Shinbo, Hitachi, JP;
Akira Kageyama, Hitachi, JP;
Yasuo Katsuya, Hitachi, JP;
Chihiro Kato, Hitachi, JP;
Masato Fukasawa, Hitachi, JP;
Makoto Sekine, Hitachi, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Abstract
In an electrophotographic plate, that having an undercoating layer with smooth surface when observed by using a scanning electron microscope and an electric conductivity of at least 2.times.10.sup.-14 .OMEGA..sup.-1 .multidot.cm.sup.-1 between an electroconductive substrate and a photosensitive layer is improved in electrophotographic properties which are hardly changed by changes of circumstances.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile