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:
Oct. 31, 2006
Filed:
Jun. 23, 2005
Michiyo Sekiya, Mishima, JP;
Hideaki Nagasaka, Sunto-gun, JP;
Kunihiko Sekido, Numazu, JP;
Nobumichi Miki, Sunto-gun, JP;
Yosuke Morikawa, Yokohama, JP;
Michiyo Sekiya, Mishima, JP;
Hideaki Nagasaka, Sunto-gun, JP;
Kunihiko Sekido, Numazu, JP;
Nobumichi Miki, Sunto-gun, JP;
Yosuke Morikawa, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrophotographic photosensitive member which has V, V, and d satisfying an expression (|−600−V|−|−600−V|)/d=0.13 and Vsatisfying an expression −5=−(−450−V)=2 provides an excellent suppressing effect on ghost images and hardly causes a ghost phenomenon even when it is mounted on a color electrophotographic apparatus or an electrophotographic apparatus having no electrostatic removal device. The invention also relates to a process cartridge and an electrophotographic apparatus each having such an electrophotographic photosensitive member.