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:
Jan. 10, 2012
Filed:
Feb. 17, 2009
Masahiro Anno, Tokyo, JP;
Masahiko Nakamura, Tokyo, JP;
Tsuyoshi Uchida, Tokyo, JP;
Kenichi Onaka, Tokyo, JP;
Junya Onishi, Tokyo, JP;
Naoya Tonegawa, Tokyo, JP;
Masahiro Anno, Tokyo, JP;
Masahiko Nakamura, Tokyo, JP;
Tsuyoshi Uchida, Tokyo, JP;
Kenichi Onaka, Tokyo, JP;
Junya Onishi, Tokyo, JP;
Naoya Tonegawa, Tokyo, JP;
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Abstract
Provided is a method for forming an image containing the steps of: (a) forming an electrostatic latent image on an electrostatic latent image carrier; and (b) developing the electrostatic latent image by a two component developer comprising a toner and a carrier, wherein the two component developer is continually replenished in the developing step (b); and the toner includes: colored particles; and external additive particles comprising a complex oxide incorporating silicon atoms and at least one of titanium atoms and aluminum atoms, and a surface existing ratio of the silicon atoms (R) in a surface of the external additive particles being larger than an average existing ratio of the silicon atoms (R) in an entirety of the external additive particles.