Patent · US Active

Electrostatic charge image developing toner

US7537876B2 · kind B2 · utility

2Cited by

1References

7Claims

0Family size

Assignee

Konica Minolta Business Technologies, Inc. · JP

Inventors

Masahiro Anno · Sakai, JP
Mikihiko Sukeno · Ashiya, JP
Takanori Tanaka · Tokyo, JP

Key dates

Filing date	Dec 28, 2005
Grant date	May 26, 2009
Priority date	—
Expiry date	Apr 11, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG03G9/09716
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Disclosed is an electrostatic charge image developing toner containing external additives possessing at least amorphous silica and a crystallized metal oxide selected from titanium oxide, aluminum oxide, zirconium oxide, or calcium oxide, wherein the amorphous silica is placed as a nucleus, and the crystallized metal oxide is present on the silica surface.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.