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. 25, 2013
Filed:
Oct. 26, 2010
Michiyo Sekiya, Mishima, JP;
Hideaki Nagasaka, Suntou-gun, JP;
Kunihiko Sekido, Numazu, JP;
Shinji Takagi, Yokohama, JP;
Akihiro Maruyama, Susono, JP;
Michiyo Sekiya, Mishima, JP;
Hideaki Nagasaka, Suntou-gun, JP;
Kunihiko Sekido, Numazu, JP;
Shinji Takagi, Yokohama, JP;
Akihiro Maruyama, Susono, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The electrophotographic photosensitive member contains a support; and a first intermediate layer, a second intermediate layer and a photosensitive layer which are provided on the support in this order, in which the second intermediate layer contains a polyolefin resin and a metal oxide particle having a volume-average particle diameter of 20 nm or less, and the first intermediate layer contains a metal oxide particle, and the volume-average particle diameter of the metal oxide particle contained in the first intermediate layer is 10 times or more to 200 times or less as large as the volume average particle diameter of the metal oxide particle contained in the second intermediate layer.