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:
Sep. 27, 2005
Filed:
Jun. 26, 2003
Nam-jeong Lee, Gyeonggi-do, KR;
Hae-ree Joo, Seoul, KR;
Saburo Yokota, Gyeonggi-do, KR;
Kyung-yol Yon, Gyeonggi-do, KR;
Hwan-koo Lee, Gyeonggi-do, KR;
Beom-jun Kim, Gyeonggi-do, KR;
Nam-jeong Lee, Gyeonggi-do, KR;
Hae-ree Joo, Seoul, KR;
Saburo Yokota, Gyeonggi-do, KR;
Kyung-yol Yon, Gyeonggi-do, KR;
Hwan-koo Lee, Gyeonggi-do, KR;
Beom-jun Kim, Gyeonggi-do, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A double-layered positively-charged organic photoreceptor has a charge transport layer with effective adhesion to an electroconductive support and effective resistance against dissolving when in contact with a hydrocarbon-based solvent of a wet developer. Therefore, the double-layered positively-charged organic photoreceptor requires neither anodizing on the electroconductive support nor an additional adhesive layer, and is compatible with wet developing methods. The double-layered positively-charged organic photoreceptor includes: an electroconductive support; a charge transport layer formed on a surface of the electroconductive support and including a charge transport material for transporting holes, a polycarbonate-based first binder resin, and a second binder resin of a polyester copolymer with a biphenylfluorene group; and a charge generating layer formed on the surface of the charge transport layer.