Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kenji Koido0
Toru Ishihara0
Date of Patent
August 15, 2006
0Patent Application Number
103705170
Date Filed
February 24, 2003
0Patent Primary Examiner
Patent abstract
In order to control the filming, a developer comprises developer primary particles, each comprising at least a resin and a colorant and an additive agent added to the developer primary particles and having a particle diameter smaller than that of the developer primary particles, wherein an extrication amount of the additive agent in the developer primary particles is smaller than 5.2×10−5 part by weight with respect to the developer primary particles.
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