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:
Mar. 08, 1977
Filed:
Aug. 01, 1974
Applicant:
Inventors:
Johannes Berle, Ruthen, DT;
Hartmut Dulken, Belecke, DT;
Gottfried Guder, Belecke, DT;
Karl-Heinz Kassel, Belecke, DT;
Assignee:
Licentia Patent-Verwaltungs-G.m.b.H., Frankfurt am Main, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
96-15 ; 427 76 ; 4272 / ; 4273 / ;
Abstract
In the fabrication of an electrophotographic recording material of the type composed of selenium, selenium compounds, or alloys with selenium, the method is simplified by initially vapor-depositing the photoconductive recording material onto a carrier at a temperature below the glass transformation temperature, and then heating the recording material to a higher second temperature range between the glass transformation temperature and a temperature just below that at which the electrophotographic properties of the recording material begin to change.