Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kenji Yamane0
Ryuji Kitani0
Masafumi Uchida0
Kenji Hayashi0
Kouji Sugama0
Date of Patent
January 4, 2011
0Patent Application Number
125783170
Date Filed
October 13, 2009
0Patent Primary Examiner
Patent abstract
An embodiment may be an electrophotographic toner which comprises at least one toner particle which comprises an inner layer and an outer layer covering the inner layer, wherein a cross-sectional area ratio of the outer layer to the inner layer is 0.05-0.46, and wherein a non-uniform thickness exists in the outer layer, and further the average thickness (t) taken at 5 positions as calculated by, is about 0.2—about 1.0 μm, t=(t1+t2+t3+t4+t5)/5 (unit of t1-t5 is μm)
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