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:
May. 07, 2013
Filed:
Jul. 18, 2011
Kosuke Nakamura, Tokyo, JP;
Hiroyuki Kozuru, Yamanashi, JP;
Yoshiyasu Matsumoto, Tokyo, JP;
Takanari Kayamori, Kanagawa, JP;
Junya Ueda, Tokyo, JP;
Kosuke Nakamura, Tokyo, JP;
Hiroyuki Kozuru, Yamanashi, JP;
Yoshiyasu Matsumoto, Tokyo, JP;
Takanari Kayamori, Kanagawa, JP;
Junya Ueda, Tokyo, JP;
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Abstract
Disclosed is a production method of a two-component developer for developing an electrostatic image comprising a toner and a resin coated carrier having a porous magnetic core particle and a resin coated layer, wherein the porous magnetic core particle are composed of a porous ferrite material and have pore apertures on a surface of the particle, and the method comprises steps of blocking the pore apertures of the porous magnetic core particle with rubber particles by dry mixing of the porous magnetic core particle and the rubber particles, forming the resin coated carrier by forming a resin layer on the porous magnetic core particle whose pore apertures have been blocked, and mixing the resin coated carrier and the toner.