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. 05, 2009
Filed:
Apr. 06, 2006
Hitoshi Iwatsuki, Numazu, JP;
Tomio Kondou, Numazu, JP;
Shinichiro Yagi, Numazu, JP;
Kousuke Suzuki, Numazu, JP;
Hitoshi Iwatsuki, Numazu, JP;
Tomio Kondou, Numazu, JP;
Shinichiro Yagi, Numazu, JP;
Kousuke Suzuki, Numazu, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A carrier contains a core material; and a coated film containing a binder resin, and a particulate material, the coated film covering the core material, wherein a ratio (D/h) of an average particle diameter (D) of the particulate material to an average thickness (h) of the coated film is from 0.01 to 1, and wherein the carrier has concavities and convexities on the surface of the carrier, the concavities and convexities having a difference of elevation of from 0.05 to 2.0 μm.