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:
Jul. 17, 2007
Filed:
Apr. 29, 2004
Yoshinobu Baba, Kanagawa, JP;
Ryoichi Fujita, Tokyo, JP;
Takaaki Kaya, Shizuoka, JP;
Kazuo Terauchi, Shizuoka, JP;
Yoshinobu Baba, Kanagawa, JP;
Ryoichi Fujita, Tokyo, JP;
Takaaki Kaya, Shizuoka, JP;
Kazuo Terauchi, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A magnetic carrier includes a magnetic material-dispersed resin core containing at least a magnetic material and a binder resin. The surface of the magnetic material-dispersed resin core is coated with a coating material containing at least a fluorine resin and 1 to 40 parts by weight of fine particles based on 100 parts by weight of the fluorine resin. The coating material is in an amount of 0.3 to 4.0 parts by weight based on 100 parts by weight of the magnetic material-dispersed resin core. The magnetic carrier has a contact angle of 95 to 125°. A two-component developer is also provided which makes use of the magnetic carrier.