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:
Dec. 15, 1987
Filed:
Feb. 18, 1987
Applicant:
Inventors:
Annette Johncock, Royal Oak, MI (US);
Stephen J Hudgens, Southfield, MI (US);
Assignee:
Energy Conversion Devices, Inc., Troy, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
430 65 ; 430 66 ; 430 67 ; 430132 ;
Abstract
An improved enhancement layer operatively disposed between the top protective layer and the photoconductive layer of an electrophotographic device. The enhancement layer is specifically tailored from a semiconductor alloy material designed to substantially prevent charge carriers from being caught in deep midgap traps as said carriers move toward the surface of the electrophotographic device from the photoconductive layer thereof. A method of substantially improving charge fatigue and image flow characteristics through the use of such an improved enhancement layer is also disclosed.