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:
Jan. 08, 2002
Filed:
Jul. 26, 2000
Akiteru Fujii, Kanagawa, JP;
Shinichi Suzuki, Kanagawa, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
The present invention provides a negative charging electrophotographic photoreceptor, which includes an electroconductive substrate; a charge generation layer disposed on the electroconductive substrate; and a charge transport layer disposed on the charge generation layer; wherein the charge transport layer is in a homogeneous state; and wherein the charge generation layer has a light transmittance of at least 10% per micrometer of film thickness of the charge generation layer, or wherein the photoreceptor has an E /E ratio in the range of 1 to 6, or wherein the charge generation layer has a light transmittance of at least 68% per micrometer of film thickness of the charge generation layer. The present invention provides methods of making and using the electrophotographic photoreceptor, and apparatuses which include the electrophotographic photoreceptor. The present invention also provides a method for optimizing an E /E ratio in an electrophotographic photoreceptor to obtain S-shaped, high-&ggr; characteristics in the electrophotographic photoreceptor. By use of the present invention, a negative charging electrophotographic photoreceptor is obtained having excellent performances with respect to digital light input (high-&ggr; characteristics) and having a long life and high stability which make the photoreceptor suitable for repeated use.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile