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:
Jun. 29, 2010
Filed:
Aug. 10, 2009
Hideaki Nagasaka, Sunto-gun, JP;
Kunihiko Sekido, Numazu, JP;
Michiyo Sekiya, Mishima, JP;
Nobumichi Miki, Sunto-gun, JP;
Yosuke Morikawa, Yokohama, JP;
Hideaki Nagasaka, Sunto-gun, JP;
Kunihiko Sekido, Numazu, JP;
Michiyo Sekiya, Mishima, JP;
Nobumichi Miki, Sunto-gun, JP;
Yosuke Morikawa, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrophotographic photosensitive member has a support, a charge generation layer containing a charge-generating material and a binder resin, provided on the support, and a hole transport layer containing a hole-transporting material, provided on the charge generation layer. The charge generation layer contains a phenanthrene compound having a structure represented by the following formula (2): wherein Zand Zeach independently represent an oxygen atom, a ═C(CN)group or a ═N-Ph group; Rrepresents a hydrogen atom, a halogen atom, a nitro group, a substituted or unsubstituted alkyl group or a substituted or unsubstituted alkoxy group; and Rrepresents a halogen-atom-substituted alkyl group.