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. 21, 2014
Filed:
Jan. 14, 2011
Kazunori Noguchi, Suntou-gun, JP;
Harunobu Ogaki, Suntou-gun, JP;
Shio Murai, Namazu, JP;
Atsushi Ochi, Hino, JP;
Koji Takahashi, Suntou-gun, JP;
Kazunori Noguchi, Suntou-gun, JP;
Harunobu Ogaki, Suntou-gun, JP;
Shio Murai, Namazu, JP;
Atsushi Ochi, Hino, JP;
Koji Takahashi, Suntou-gun, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A charge transport layer, which is the surface layer of an electrophotographic photosensitive member, contains a charge transporting material, and a polyester resin A having a repeating structural unit including a specific siloxane moiety and at least one of a polyester resin C having a specific structure and a polycarbonate resin D having a specific structure as a binder resin. The content of the siloxane moiety in the polyester resin A is from 5% by mass or more to 30% by mass or less based on the total mass of the polyester resin A. The charge transport layer includes a domain made of the polyester resin A in a matrix made of the charge transporting material and at least one of the polyester resin C and the polycarbonate resin D.