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. 27, 1979
Filed:
Dec. 23, 1976
Ronald E Karam, Webster, NY (US);
David J Swarthout, Allston, MA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
Disclosed is a method of forming finely divided photosensitive trigonal selenium particles which are submicron in size and generally spherical in shape. The method comprises forming an alkaline solution containing selenide and/or polyselenide ions, followed by the precipitation of finely divided trigonal selenium particles from said solution by the addition of an oxidizing agent to said alkaline solution. The trigonal selenium particles are formed into a binder layer photosensitive device by dispersing them with an organic resin in solution with an organic solvent which when applied to a substrate in a uniform layer, is heated to remove the solvent and form the device. Continued heat treatment of the device can result in enhancement of its ability to accept an electrostatic charge.