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:
Feb. 21, 2006
Filed:
Aug. 26, 2003
Takakazu Tanaka, Shizuoka, JP;
Akira Yoshida, Kanagawa, JP;
Hidetoshi Hirano, Shizuoka, JP;
Yuka Ishiduka, Shizuoka, JP;
Harunobu Ogaki, Shizuoka, JP;
Takakazu Tanaka, Shizuoka, JP;
Akira Yoshida, Kanagawa, JP;
Hidetoshi Hirano, Shizuoka, JP;
Yuka Ishiduka, Shizuoka, JP;
Harunobu Ogaki, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In an electrophotographic photosensitive member having a support, and provided thereon a photosensitive layer, a surface layer of the electrophotographic photosensitive member contains an electrically insulating binder resin and a random-copolymer type high-molecular-weight charge-transporting material having two kinds of specific repeating structural units. Also disclosed are a process cartridge and an electrophotographic apparatus which have such an electrophotographic photosensitive member.