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:
Jul. 31, 2007
Filed:
Oct. 07, 2003
Applicants:
Hidenori Tachi, Wakayama, JP;
Shinji Moriyama, Wakayama, JP;
Yoshihiro Fukushima, Wakayama, JP;
Inventors:
Assignee:
Kao Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/09 (2006.01);
U.S. Cl.
CPC ...
Abstract
A toner comprising a resin binder and a colorant comprising a composite oxide of two or more metals, wherein the composite oxide has a BET specific surface area of 0.5 to 7 m/g and a saturation magnetization of from 1 to 40 Am/kg; and a two-component developer comprising the above toner and a carrier having a saturation magnetization of from 40 to 100 Am/kg. The toner can be used for the development of a latent image formed in electrophotography, electrostatic recording method, electrostatic printing method or the like.