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. 27, 2011
Filed:
Oct. 11, 2007
Hitoshi Iwatsuki, Numazu, JP;
Tomio Kondou, Numazu, JP;
Shinichiro Yagi, Numazu, JP;
Masashi Nagayama, Mishima, JP;
Hitoshi Iwatsuki, Numazu, JP;
Tomio Kondou, Numazu, JP;
Shinichiro Yagi, Numazu, JP;
Masashi Nagayama, Mishima, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A carrier for use in an image forming apparatus in which a toner and a carrier are fed to an image developer thereof and an extra developer including the toner and the carrier in the image developer is discharged therefrom, wherein at least one of the carrier fed to the image developer and a carrier readily contained therein includes a core material; and a coated film coating the core material, and wherein the coated film includes a binder resin and a particulate material having a ratio of an average particle diameter thereof to an average thickness of the coated film of from 0.01 to 1, and includes concavities and convexities having an average difference of elevation of from 0.02 to 3.0 μm.