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. 31, 2006
Filed:
Apr. 25, 2003
Harunobu Ogaki, Shizuoka, JP;
Akira Yoshida, Kanagawa, JP;
Takakazu Tanaka, Shizuoka, JP;
Itaru Takaya, Kanagawa, JP;
Yuka Ishiduka, Shizuoka, JP;
Harunobu Ogaki, Shizuoka, JP;
Akira Yoshida, Kanagawa, JP;
Takakazu Tanaka, Shizuoka, JP;
Itaru Takaya, Kanagawa, JP;
Yuka Ishiduka, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention relates to an electrophotographic photosensitive member having a support and provided thereon a photosensitive layer. The photosensitive layer contains a high-molecular weight charge-transporting material having a specific repeating structural unit. The high-molecular weight charge-transporting material has a weight-average molecular weight Mw of 1,500 or more and an energy level of highest occupied molecular orbital, E, of from −8.3 eV or more to −8.0 eV or less as found by semiempirical molecular-orbital calculation. The present invention also relates to a process cartridge and an electrophotographic apparatus which have such an electrophotographic photosensitive member.