Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Akifumi Matsubara0
Takeshi Hashimoto0
Tsubasa Fujisaki0
Yuto Onozaki0
Hiroyuki Fujikawa0
Hitoshi Sano0
Ichiro Kanno0
Masayuki Hama0
...
Date of Patent
September 3, 2019
0Patent Application Number
156009290
Date Filed
May 22, 2017
0Patent Citations Received
...
Patent Primary Examiner
Patent abstract
A toner comprises a toner particle containing an amorphous polyester, wherein the amorphous polyester contains an amorphous polyester 1, the amorphous polyester contains a tin compound and a titanium compound, a Sn/Ti abundance ratio between Sn and Ti in the amorphous polyester according to x-ray fluorescence analysis is 20/80 to 80/20, and a weight-average molecular weight Mw1 of the amorphous polyester 1 according to measurement by gel permeation chromatography (GPC) is Mw1<7,000.
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