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:
Dec. 04, 2012
Filed:
Oct. 07, 2010
Takeshi Naka, Susono, JP;
Yoshinobu Baba, Yokohama, JP;
Koh Ishigami, Mishima, JP;
Yoshiaki Shiotari, Mishima, JP;
Kentaro Kamae, Mishima, JP;
Takeshi Naka, Susono, JP;
Yoshinobu Baba, Yokohama, JP;
Koh Ishigami, Mishima, JP;
Yoshiaki Shiotari, Mishima, JP;
Kentaro Kamae, Mishima, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
When a surface of magnetic carrier core particles is coated with coating resin composition particles, the coating is conducted so that a surface of the magnetic carrier is free from cracks and chips and has fewer residual resin composition particles and a coating is uniform. In the method, a rotor having a plurality of stirring members on a surface thereof is rotated to coat the surface of magnetic carrier core particles with the resin composition particles. When the coating is conducted, while repeatedly conducting transportation in a direction of a driver and transportation in an anti-driver direction, the surface of the magnetic carrier core particles is coated with the resin composition. The resin composition particles has a 50% particle diameter (D50) based on volume of 0.2 μm or more to 6.0 μm or less and the proportion of particles of 10.0 μm or more is 2.0% by volume or less.