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. 06, 1990
Filed:
Apr. 04, 1990
Mita Industrial Co., Ltd., Osaka, JP;
Abstract
Disclosed is an organic laminated photosensitive material of the positive charging type comprising an electroconductive substrate, a charge-transporting layer formed on the substrate and a charge-generating and transporting layer formed on the charge-transporting layer. The charge-transporting layer is composed of a binder resin containing a hole-transporting substance, and the charge-generating and transporting layer is composed of a binder resin containing a hole-transporting substance different from the hole-transporting substance in the charge-transporting layer and a charge-generating substance. The oxidation potential of the hole-transporting substance in the charge-generating and transporting layer is higher than that of the hole-transporting substance in the charge-transporting layer, but the difference of the oxidation potential between the hole-transporting substances of the two layers is smaller than 0.3 eV. In this photosensitive material, injection of holes between the two layers can be easily performed, and the sensitivity can be highly improved.