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:
Oct. 18, 2016
Filed:
Feb. 23, 2015
Konica Minolta, Inc., Tokyo, JP;
Satoshi Uchino, Hino, JP;
Shinya Obara, Fuchu, JP;
Yasuko Uchino, Hino, JP;
Ikuko Sakurada, Hachioji, JP;
KONICA MINOLTA, INC., Tokyo, JP;
Abstract
An image forming method includes: charging a surface of an electrostatic latent image holder with a charging roller; exposing the charged surface so as to form an electrostatic latent image; and developing the formed electrostatic latent image with toner. The toner contains at least a toner base particle and an external additive minute particle. The external additive minute particle contains a silica-polymer composite minute particle. A silicon atom abundance ratio obtained from abundances of a carbon atom, an oxygen atom and a silicon atom present on an outermost surface and within 3 nm from the outermost surface in a depth direction of the silica-polymer composite minute particle are measured with an x-ray photoelectron spectrometer satisfies at least the following condition A.15.0 atm %≦silicon atom abundance ratio ({Si/(C+O+Si)}×100)≦30.0 atm %  [Condition A]