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. 22, 1981
Filed:
Feb. 03, 1975
Applicant:
Inventors:
Assignee:
Elfotec A.G., Zumikon, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
430 31 ; 430 56 ;
Abstract
A process for improving the photoelectric properties of a laminated charge image carrier. In the process, an insulating layer, which can be doped before or after application, is applied between the substrate and the photoconductive layer. The insulating layer can also be applied in layers, one of which can be doped. Suitable dopants are acid, alkaline and halogen vapors, sensitizers and pigments.