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:
Nov. 25, 2008
Filed:
Oct. 27, 2005
Naruo Yabe, Osaka, JP;
Kouzou Teramoto, Osaka, JP;
Norio Kubo, Osaka, JP;
Takeo Mizobe, Osaka, JP;
Kyocera Mita Corporation, Osaka, JP;
Abstract
A two-component developing agent retained on the periphery surface of a magnetic rollerand a development rollerare brought in contact with each other, the nonmagnetic toner in the two-component developing agent is electrostatically adhered to the periphery surface of the development roller, and the nonmagnetic toner on the development rolleris sprayed on the periphery surface of a photosensitive drum, thereby causing an image of an electrostatic latent image to appear on the photosensitive drumas a toner image. The two-component developing agent for an image forming device thus configured comprises a nonmagnetic toner comprising color particles, and a magnetic carrier, wherein the magnetic carrier has a resin coating layer on the magnetic particle surface, and the critical surface tension of this resin coating layer is 25 dyn/cm or less.