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:
Aug. 18, 2009
Filed:
Mar. 30, 2006
Yukinori Nakayama, Tsu, JP;
Kousuke Satou, Mie, JP;
Kouzou Teramoto, Higashi-Osaka, JP;
Hiroshi Mizuhata, Wakayama, JP;
Yukinori Nakayama, Tsu, JP;
Kousuke Satou, Mie, JP;
Kouzou Teramoto, Higashi-Osaka, JP;
Hiroshi Mizuhata, Wakayama, JP;
Kyocera Mita Corporation, Osaka, JP;
Abstract
The object is to provide a magnetic toner with which toner scattering, toner spent to carrier, development of scratch streaks by the magnetic brush on the photoreceptor drum can be prevented for a prolonged period and a good image characteristic (in image density and background fogging) can be maintained for a prolonged period, and an image forming method using the magnetic toner. A two-component developer comprising carriers and toner which contains magnetic particle at least in a binder resin thereof, the magnetic particle being of basically polyhedral shaped shape, vertexes and edges of said polyhedral shape being curved surfaces, said shape having peripheral parts taken as straight lines in a projected image thereof, saturation magnetization of said toner in a magnetic field of 79.6 kA/m being 4.0 to 15.0 Am/kg, is prepared, and the toner retaining members (carriers) bearing at least said magnetic toner to which electric charge is injected are allowed to face a latent image retaining member and an electrostatic latent image on said latent image retaining member is developed with said magnetic toner.