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:
Sep. 21, 2010
Filed:
Sep. 06, 2007
Minoru Nakamura, Suntoh-gun, JP;
Arihiro Yamamoto, Mishima, JP;
Masaki Yamada, Mishima, JP;
Masahiro Kurachi, Mishima, JP;
Minoru Nakamura, Suntoh-gun, JP;
Arihiro Yamamoto, Mishima, JP;
Masaki Yamada, Mishima, JP;
Masahiro Kurachi, Mishima, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A developing member is provided which is capable of forming a high-quality image by simultaneously solving the problem of fogging in a high temperature and high humidity environment and the problem of ghosts in a low temperature and low humidity environment. The developing member includes a mandrel and a resin layer formed on the periphery of the mandrel, and has an outermost surface layer containing a non-reactive silicone compound. The non-reactive silicone compound satisfies the following requirements: (A) a copolymer of silicone and polyoxyethylene; (B) a specific gravity (25° C.) d of 0.99≦d≦1.03; and (C) a solubility in water (25° C.) of less than 0.1% by mass.