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:
Nov. 10, 1998
Filed:
Apr. 09, 1997
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
The present invention prevents the deterioration of electrophotographic photoreceptor properties due to non-uniform dissolution of the surface of an aluminum substrate or production of hydrates during rinsing or drying from hot pure water in an aqueous cleaning process, assuring the uniformity and stability on the surface of an electrically-conductive substrate for electrophotographic photoreceptor. The resulting electrically-conductive substrate for electrophotographic photoreceptor exhibits an excellent corrosion resistance that can be expected to provide a high environmental stability. Further, the resulting electrophotographic photoreceptor can exhibit improved electrical properties. The present invention provides a novel electrically-conductive substrate for electrophotographic photoreceptor comprising aluminum or aluminum alloy, wherein the element ratio of aluminum in metallic form to aluminum in oxide form on the surface of said substrate as determined by X-ray photoelectron spectroscopy is 1:1 to 1:2.5 and the element ratio of aluminum to phosphorus on the surface of said substrate as determined by X-ray photoelectron spectroscopy is 1:0.02 to 1:0.1.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile