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:
Sep. 04, 2018
Filed:
Nov. 01, 2016
Fuji Xerox Co., Ltd., Tokyo, JP;
Masashi Ikeda, Kanagawa, JP;
Emi Takahashi, Kanagawa, JP;
Yuka Ishihara, Kanagawa, JP;
Manabu Furuki, Kanagawa, JP;
Makoto Kamisaki, Kanagawa, JP;
Teppei Yawada, Kanagawa, JP;
FUJI XEROX CO., LTD., Tokyo, JP;
Abstract
An electrostatic charge image developer includes: toner particles; silica particles treated with a silicone oil, which are externally added to the toner particles; and a carrier, wherein a volume average particle diameter of the carrier is equal to or greater than 20 μm and smaller than 30 μm, and a quantity ratio of an elemental silicon derived from a silicone oil and an elemental silicon derived from silica which are present on the surface of the carrier (silicone oil-derived elemental silicon/silica-derived elemental silicon) is in a range of 0.05 to 0.2.