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公开(公告)号：US09971261B2
公开(公告)日：2018-05-15
申请号：US15423187
申请日：2017-02-02
申请人： Satoshi Takahashi , Yoshihiro Moriya , Ryota Inoue , Masahiko Ishikawa , Tatsuki Yamaguchi , Satoshi Kojima
发明人： Satoshi Takahashi , Yoshihiro Moriya , Ryota Inoue , Masahiko Ishikawa , Tatsuki Yamaguchi , Satoshi Kojima
CPC分类号： G03G9/0827 , G03G9/0804 , G03G9/0819 , G03G9/0821 , G03G9/08711 , G03G9/08755 , G03G9/0904 , G03G9/0918
摘要： An electrostatic-image developing toner including at least a binder resin; a colorant; and a release agent, wherein an average circularity of particles having a particle diameter in a range of 0.79 times or more but less than 1.15 times as large as a most frequent diameter in a number particle size distribution of the toner is within a range of 1.010 times or more but less than 1.020 times as high as an average circularity of particles having a particle diameter of 1.15 times or more as large as the most frequent diameter.
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公开(公告)号：US20170146917A1
公开(公告)日：2017-05-25
申请号：US15423187
申请日：2017-02-02
申请人： Satoshi TAKAHASHI , Yoshihiro Moriya , Ryota Inoue , Masahiko Ishikawa , Tatsuki Yamaguchi , Satoshi Kojima
发明人： Satoshi TAKAHASHI , Yoshihiro Moriya , Ryota Inoue , Masahiko Ishikawa , Tatsuki Yamaguchi , Satoshi Kojima
CPC分类号： G03G9/0827 , G03G9/0804 , G03G9/0819 , G03G9/0821 , G03G9/08711 , G03G9/08755 , G03G9/0904 , G03G9/0918
摘要： An electrostatic-image developing toner including at least a binder resin; a colorant; and a release agent, wherein an average circularity of particles having a particle diameter in a range of 0.79 times or more but less than 1.15 times as large as a most frequent diameter in a number particle size distribution of the toner is within a range of 1.010 times or more but less than 1.020 times as high as an average circularity of particles having a particle diameter of 1.15 times or more as large as the most frequent diameter.
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公开(公告)号：US09785065B2
公开(公告)日：2017-10-10
申请号：US15305057
申请日：2015-03-24
申请人： Ryota Inoue , Yoshihiro Moriya , Masahiko Ishikawa , Satoshi Takahashi , Tatsuki Yamaguchi , Satoshi Kojima
发明人： Ryota Inoue , Yoshihiro Moriya , Masahiko Ishikawa , Satoshi Takahashi , Tatsuki Yamaguchi , Satoshi Kojima
CPC分类号： G03G9/0819 , G03G9/0804 , G03G9/081 , G03G9/0825 , G03G9/0827 , G03G9/08711 , G03G9/08755 , G03G9/08782 , G03G9/0904 , G03G9/09378 , G03G9/1075 , G03G9/1136
摘要： A toner including: binder resin; and release agent, wherein the release agent is 1% to 8% by mass to the toner, as equivalent mass of endothermic amount of the release agent determined by DSC, wherein the release agent present in region from surface of the toner to 0.3 μm depth is 0.1% to 4% by mass, as determined by FTIR-ATR, and wherein, in TEM image of torn surface of the toner, WDa
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公开(公告)号：US10151991B2
公开(公告)日：2018-12-11
申请号：US15675945
申请日：2017-08-14
申请人： Satoshi Kojima , Yoshihiro Moriya , Masahiko Ishikawa , Satoshi Takahashi , Tatsuru Moritani , Tatsuki Yamaguchi
发明人： Satoshi Kojima , Yoshihiro Moriya , Masahiko Ishikawa , Satoshi Takahashi , Tatsuru Moritani , Tatsuki Yamaguchi
摘要： Provided is a toner including at least: a binder resin; and a release agent, wherein in a transmission electron microscopic (TEM) image of a torn cross-section of the toner, the release agent has an acicular or filiform shape and an average aspect ratio of 31 or greater, and wherein a displacement amount of the toner when 250 micronewtons is applied to the toner in a microcompression test is 700 nm or less.
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公开(公告)号：US09618863B2
公开(公告)日：2017-04-11
申请号：US14928797
申请日：2015-10-30
CPC分类号： G03G9/0827 , G03G9/0804 , G03G9/0819 , G03G9/0821 , G03G9/08795
摘要： A toner is provided. The toner includes a binder resin, a colorant, a release agent and an external additive. The toner has an average circularity of from 0.965 to less than 0.985. The toner has BET specific surface area of less than 1.20 m2/g after liberation treatment of external additive.
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公开(公告)号：US20160077455A1
公开(公告)日：2016-03-17
申请号：US14837665
申请日：2015-08-27
CPC分类号： G03G9/1132 , G03G9/0806 , G03G9/0819 , G03G9/0821 , G03G9/08711 , G03G9/08755 , G03G9/08786
摘要： A toner is provided. The toner includes a binder resin and a release agent. The binder resin includes a polyester resin. The toner has a single exothermic peak measured by a differential scanning calorimetry (DSC) descending in a temperature range of from 150° C. to 0° C., wherein the exothermic peak is in a temperature range of from 40° C. to 60° C. and has a half bandwidth of at most 10° C. The release agent disperse to network form in the cross-sectional images of the toner observed with a transmission electron microscope (TEM).
摘要翻译： 提供调色剂。 调色剂包括粘合剂树脂和脱模剂。 粘合剂树脂包括聚酯树脂。 调色剂具有通过在150℃至0℃的温度范围内下降的差示扫描量热法（DSC）测量的单个放热峰，其中放热峰在40℃至60℃的温度范围内 ℃，并且具有至多10℃的半带宽。脱模剂在透射电子显微镜（TEM）观察到的调色剂的横截面图像中分散成网状。
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公开(公告)号：US10451989B2
公开(公告)日：2019-10-22
申请号：US16119653
申请日：2018-08-31
摘要： Provided is a toner including toner base particles and an external additive, wherein each of the toner base particles includes a binder resin, a release agent, and silica, an average abundance ratio (Xsurf) of the silica on a region adjacent to a surface of the toner base particle is from 70% through 90%, and a projected area average value S(180) per particle of the toner when the toner is heated to 180° C. and a projected area average value S(30) per particle of the toner when the toner is 30° C. satisfy Formula (1) below, 1.4≤S(180)/S(30)≤1.7 Formula (1).
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公开(公告)号：US20180373174A1
公开(公告)日：2018-12-27
申请号：US16119653
申请日：2018-08-31
摘要： Provided is a toner including toner base particles and an external additive, wherein each of the toner base particles includes a binder resin, a release agent, and silica, an average abundance ratio (Xsurf) of the silica on a region adjacent to a surface of the toner base particle is from 70% through 90%, and a projected area average value S(180) per particle of the toner when the toner is heated to 180° C. and a projected area average value S(30) per particle of the toner when the toner is 30° C. satisfy Formula (1) below, 1.4≤S(180)/S(30)≤1.7 Formula (1).
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公开(公告)号：US09977367B2
公开(公告)日：2018-05-22
申请号：US15340647
申请日：2016-11-01
CPC分类号： G03G15/0865 , G03G9/0819 , G03G9/0825 , G03G9/0827 , G03G9/087 , G03G9/09725 , G03G15/08
摘要： A toner includes a toner base particle including a binder resin; a release agent; and an inorganic fine particle, and an external additive. The inorganic fine particle is silica having an average abundance ratio at the surface of the toner base particle of from 70% to 90%. The toner base particle has a BET specific surface area of from 1.0 m2/g to 2.5 m2/g after the external additive is removed from the toner.
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公开(公告)号：US20180231902A1
公开(公告)日：2018-08-16
申请号：US15955094
申请日：2018-04-17
IPC分类号： G03G9/087
CPC分类号： G03G9/08755 , G03G9/0821 , G03G9/08795 , G03G9/08797 , G03G2215/0617
摘要： A toner including polyester, wherein an amount of heat of a peak derived from the polyester in a range of from 40° C. through 70° C. during a cooling process is from 1.0 J/g through 15 J/g in differential scanning calorimetry performed under conditions below, after maintaining the toner at −20° C., heating the toner to 130° C. at 10° C./min (a first heating process), after maintaining the toner at 130° C. for 1 minute, cooling the toner to −50° C. at cooling speed of 10° C./min (the cooling process), and after maintaining the toner at −50° C. for 5 minutes, heating the toner to 130° C. at 10° C./min (a second heating process).
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