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:
Apr. 15, 2008
Filed:
Jul. 18, 2003
Tsuyoshi Fujiki, Osaka, JP;
Hiroki Sakamoto, Osaka, JP;
Hiroaki Murase, Osaka, JP;
Masashi Tanaka, Osaka, JP;
Shinichi Kawasaki, Osaka, JP;
Mitsuaki Yamada, Osaka, JP;
Tsuyoshi Fujiki, Osaka, JP;
Hiroki Sakamoto, Osaka, JP;
Hiroaki Murase, Osaka, JP;
Masashi Tanaka, Osaka, JP;
Shinichi Kawasaki, Osaka, JP;
Mitsuaki Yamada, Osaka, JP;
Osaka Gas Co., Ltd., Osaka, JP;
Abstract
A top surface layer of an electrophotographic photosensitive element (e.g., a charge-transporting layer) is rendered to contain a cyclic polysilane represented by the following formula (1). In the formula, Rand Rare the same or different from each other and each represents a group such as an alkyl group, an aryl group, and 'm' denotes an integer of not less than 4. The cyclic polysilane may be a copolysilane. The content of the cyclic polysilane may be about 0.01 to 10% by weight relative to the whole components of the top surface layer.