Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yasuhito Noda0
Takashi Urabe0
Takayasu Aoki0
Tsuyoshi Ito0
Masahiro Ikuta0
Motonari Udo0
Satoshi Araki0
Takafumi Hara0
Date of Patent
December 7, 2010
0Patent Application Number
119478950
Date Filed
November 30, 2007
0Patent Primary Examiner
Patent abstract
A developing agent including a toner particle obtained by using a dispersion containing a solvent, a granular mixed compound having a binder resin and a coloring agent dispersed in the solvent, and, as an additive to disperse a compound, a combination of a surfactant and a basic compound or a combination of a sulfone-based surfactant and a polycarboxylic acid-based surfactant, wherein the additive remaining in the developing agent is within a predetermine range.
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