公开(公告)号：US5744278A

公开(公告)日：1998-04-28

申请号：US835878

申请日：1997-04-08

申请人： Yasukazu Ayaki ,  Takeshi Ikeda ,  Tetsuro Fukui ,  Yoshinobu Baba ,  Hitoshi Itabashi ,  Yayoi Nagao

发明人： Yasukazu Ayaki ,  Takeshi Ikeda ,  Tetsuro Fukui ,  Yoshinobu Baba ,  Hitoshi Itabashi ,  Yayoi Nagao

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/093

CPC分类号： G03G9/08797 ,  G03G9/0819 ,  G03G9/0825 ,  G03G9/093 ,  G03G9/09392

摘要： A toner for electrophotography contains at least a colorant and a binder resin, and (i) contains 0.1 to 15 parts by weight of colorant per 100 parts by weight of binder resin, (ii) has a number average particle size of 0.5 to 6.0 .mu.m, (iii) has a coefficient of variation of 20% or less based on a number distribution, and (iv) has a capsule structure containing a shell layer and a core. The toner has solvent-mixture-soluble resin components extracted with a solvent mixture of ethanol and methyl ethyl ketone wherein the maximum glass transition temperature (Tg1) of a first soluble resin component obtained by extracting until 10% by weight of the total weight of the solvent-mixture-soluble resin components, and the maximum glass transition temperature (Tg2) of a second soluble resin component of the remainder satisfy the following relations: Tg1>Tg2 and Tg1.gtoreq.50.degree. C.

摘要翻译： 电子照相用调色剂至少含有着色剂和粘合剂树脂，（i）每100重量份粘合剂树脂含有0.1〜15重量份的着色剂，（ii）数均粒径为0.5〜6.0μm m，（iii）基于数量分布具有20％以下的变异系数，（iv）具有包含壳层和芯的胶囊结构。 调色剂具有用乙醇和甲基乙基酮的溶剂混合物萃取的溶剂混合物可溶性树脂组分，其中通过萃取获得的第一可溶性树脂组分的最大玻璃化转变温度（Tg1）至总重量的10重量％ 溶剂混合物溶解性树脂成分，其余的第二可溶性树脂成分的最高玻璃化转变温度（Tg2）满足以下关系：Tg1> Tg2，Tg1> = 50℃

公开(公告)号：US5985502A

公开(公告)日：1999-11-16

申请号：US994030

申请日：1997-12-18

申请人： Yasukazu Ayaki ,  Takeshi Ikeda ,  Tetsuro Fukui ,  Yoshinobu Baba ,  Hitoshi Itabashi

发明人： Yasukazu Ayaki ,  Takeshi Ikeda ,  Tetsuro Fukui ,  Yoshinobu Baba ,  Hitoshi Itabashi

IPC分类号： G03G9/08 ,  G03G9/087

CPC分类号： G03G9/0806 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08795

摘要： A toner has at least 100 parts by weight of binder resin and 0.1 to 15 parts by weight of colorant. The toner has a number average particle size (Dn) of 0.5 to 6.0 .mu.m, a particle size distribution coefficient (volume average particle size (Dv) / number average particle size (Dn)) of 1.0 to 1.3 and a variation coefficient of particle number distribution of 20% or less.The toner contains 0.1 to 5.0% by weight of methanol-soluble resin component extracted by the first Soxhlet extraction with methanol and 50 to 99% by weight of THF-soluble resin component extracted by a second Soxhlet extraction with tetrahydrofuran (THF) after the Soxhlet extraction with methanol, wherein the maximum glass transition point (Tg.sub.2) of the methanol-soluble resin component and the glass transition point (Tg.sub.1) of the THF-soluble resin component satisfies the following relation;0 (.degree. C.)

摘要翻译： 调色剂具有至少100重量份的粘合剂树脂和0.1至15重量份的着色剂。 调色剂的数均粒径（Dn）为0.5〜6.0μm，粒径分布系数（体积平均粒径（Dv）/数均粒径（Dn））为1.0〜1.3，粒子的变异系数 数量分布在20％以下。 调色剂含有0.1至5.0重量％的甲醇可溶性树脂组分，通过第一次索格利特甲醇萃取提取甲醇溶解树脂组分，以及50至99重量％的THF可溶性树脂组分，经索氏提取后通过第四次索格利特萃取 用甲醇萃取，其中甲醇可溶性树脂组分的最大玻璃化转变温度（Tg2）和THF可溶性树脂组分的玻璃化转变温度（Tg1）满足以下关系： 0（℃）

公开(公告)号：US06566028B2

公开(公告)日：2003-05-20

申请号：US09819067

申请日：2001-07-16

申请人： Yayoi Tazawa ,  Takeshi Ikeda ,  Yoshinobu Baba ,  Hitoshi Itabashi ,  Yuzo Tokunaga ,  Yasukazu Ayaki

发明人： Yayoi Tazawa ,  Takeshi Ikeda ,  Yoshinobu Baba ,  Hitoshi Itabashi ,  Yuzo Tokunaga ,  Yasukazu Ayaki

IPC分类号： G03G500

CPC分类号： G03G9/0825 ,  G03G9/08773 ,  G03G9/097 ,  G03G9/09775

摘要： A toner is comprised of toner particles composed of at least a binder resin and a clorant, wherein the toner particles each have a coating layer formed on their surfaces in a state of particulate matters being stuck to one another. The particulate matters contains at least a silicon compound.

公开(公告)号：US06358658B1

公开(公告)日：2002-03-19

申请号：US09443133

申请日：1999-11-18

申请人： Yayoi Tazawa ,  Takeshi Ikeda ,  Yoshinobu Baba ,  Hitoshi Itabashi ,  Yuzo Tokunaga ,  Yasukazu Ayaki

发明人： Yayoi Tazawa ,  Takeshi Ikeda ,  Yoshinobu Baba ,  Hitoshi Itabashi ,  Yuzo Tokunaga ,  Yasukazu Ayaki

IPC分类号： G03G900

CPC分类号： G03G9/0825 ,  G03G9/08773 ,  G03G9/097 ,  G03G9/09775

摘要： A toner is comprised of toner particles composed of at least a binder resin and a clorant, wherein the toner particles each have a coating layer formed on their surfaces in a state of particulate matters being stuck to one another. The particulate matters contains at least a silicon compound.

公开(公告)号：US5766814A

公开(公告)日：1998-06-16

申请号：US826678

申请日：1997-04-07

申请人： Yoshinobu Baba ,  Takeshi Ikeda ,  Yuko Sato ,  Hitoshi Itabashi ,  Yuzo Tokunaga

发明人： Yoshinobu Baba ,  Takeshi Ikeda ,  Yuko Sato ,  Hitoshi Itabashi ,  Yuzo Tokunaga

IPC分类号： G03G9/10 ,  G03G9/107 ,  G03G9/113

CPC分类号： G03G9/1136 ,  G03G9/10 ,  G03G9/107

摘要： A magnetic coated carrier suitable for constituting a two-component type developer for use in electrophotography is composed of magnetic coated carrier particles comprising magnetic carrier core particles and a resinous surface coated layer coating the magnetic carrier core particles. The carrier is suitably constituted so as to satisfy the condition of: (a) the magnetic carrier core particles has a resistivity of at least 1.times.10.sup.10 ohm.cm, and the magnetic coated carrier has a resistivity of at least 1.times.10.sup.12 ohm.cm, (b) the magnetic coated carrier has a number-average particle size of 1-100 .mu.m and has such a particle size distribution that particles having particle sizes of at most a half of the number-average particle size occupy an accumulative percentage of at most 20% by number, (c) the magnetic coated carrier has a shape factor SF-1 of 100-130, (d) the magnetic coated carrier has a magnetization at 1 kilo-oersted of 40-250 emu/cm.sup.3, and (e) the resinous surface coating layer comprises a coating resin composition which in turn comprises a straight silicone resin and a coupling agent. The straight silicone resin includes trifunctional silicon and difunctional silicon in an atomic ratio of 100:0-40:60.

摘要翻译： 适用于构成用于电子照相术的双组分型显影剂的磁性涂层载体由包括磁性载体芯颗粒的磁性涂覆载体颗粒和涂覆磁性载体芯颗粒的树脂表面涂层组成。 载体适当地构成为满足以下条件：（a）磁性载体芯颗粒具有至少1×10 10欧姆·厘米的电阻率，并且磁性涂覆载体的电阻率至少为1×10 12欧姆·厘米，（b ）磁性涂布载体的数均粒径为1-100μm，并且具有这样的粒度分布，使得粒径至多为数均粒径的一半的颗粒占累积百分比至多为20 （c）磁性涂层载体的形状因子SF-1为100-130，（d）磁性涂层载体的磁化强度为1千奥斯特值为40-250emu / cm3，（e） 树脂表面涂层包括涂层树脂组合物，其又包含直的有机硅树脂和偶联剂。 直的有机硅树脂包括原子比为100:0-40:60的三官能硅和二官能硅。

公开(公告)号：US5576133A

公开(公告)日：1996-11-19

申请号：US502182

申请日：1995-07-13

申请人： Yoshinobu Baba ,  Takeshi Ikeda ,  Yasuko Amano ,  Hitoshi Itabashi

发明人： Yoshinobu Baba ,  Takeshi Ikeda ,  Yasuko Amano ,  Hitoshi Itabashi

IPC分类号： G03G9/107

CPC分类号： G03G9/1075

摘要： A two component-type developer for electrophotography showing improved electrophotographic performances and also free from carrier adhesion (undesirable carrier transfer to the photosensitive member and recording materials) is constituted by using a magnetic carrier of 5-100 .mu.m in particle size. The carrier has a bulk density of at most 30 g/cm.sup.3, and magnetic properties including: a magnetization of 30-150 emu/cm.sup.3 under a magnetic field strength of 1000 oersted, a magnetization (residual magnetization .sigma..sub.r) of at least 25 emu/cm.sup.3 under a magnetic field strength of zero oersted, a coercive force of less than 300 oersted, and a relationship of:.vertline..sigma..sub.1000 -.sigma..sub.300 .vertline./.sigma..sub.1000 .ltoreq.0.40wherein .sigma..sub.1000 and .sigma..sub.300 denote magnetizations under magnetic field strength of 1000 oersted and 300 oersted, respectively.

摘要翻译： 通过使用粒径为5-100μm的磁性载体，构成了电子照相显示改善的电子照相性能并且不含载体粘附性（不希望的载体转移到感光构件和记录材料）的双组分型显影剂。 载体的体积密度至多为30g / cm 3，磁特性包括：在1000奥斯特的磁场强度下磁化强度为30-150emu / cm 3，磁化强度（剩余磁化σr）至少为25emu / cm3，磁场强度为零奥斯特，矫顽力小于300奥斯特，关系为：| 西格玛1000西格玛300 | /西格玛1000

公开(公告)号：US5573880A

公开(公告)日：1996-11-12

申请号：US363959

申请日：1994-12-27

申请人： Shinya Mayama ,  Takeshi Ikeda ,  Yuko Sato ,  Yoshinobu Baba ,  Hiroshi Aoto ,  Yasuko Hayashi ,  Hitoshi Itabashi ,  Yuzo Tokunaga

发明人： Shinya Mayama ,  Takeshi Ikeda ,  Yuko Sato ,  Yoshinobu Baba ,  Hiroshi Aoto ,  Yasuko Hayashi ,  Hitoshi Itabashi ,  Yuzo Tokunaga

IPC分类号： G03G9/08 ,  G03G9/10 ,  G03G9/107 ,  G03G9/113 ,  G03G15/08 ,  G03G15/09

CPC分类号： G03G9/1075 ,  G03G9/10 ,  G03G9/1132

摘要： A carrier for use in electrophotography has carrier particles. The carrier particles each comprise a carrier core particle and a resin for coating the carrier core particle and having a resistivity of 10.sup.10 .OMEGA..multidot.cm or above under conditions of a temperature of 23.degree. C. and a humidity of 50% RH. The carrier particles have an average particle diameter of not larger than 100 .mu.m and a resistivity of 10.sup.10 .OMEGA..multidot.cm or above. The carrier particles comprise not less than 80% by number of resin-coated carrier particles whose carrier core particles are each coated with a resin in a coverage of not less than 90%.

摘要翻译： 用于电子照相术的载体具有载体颗粒。 载体颗粒各自包含载体芯颗粒和用于涂覆载体芯颗粒的树脂，并且在23℃和50％RH的湿度的条件下具有1010ΩEGAxcm或更高的电阻率。 载体颗粒的平均粒径不大于100μm，电阻率为1010欧米伽×厘米或以上。 载体颗粒包含不少于80个数量的树脂涂覆的载体颗粒，其载体芯颗粒各自以不低于90％的覆盖率覆盖树脂。

公开(公告)号：US6165663A

公开(公告)日：2000-12-26

申请号：US422105

申请日：1999-10-20

申请人： Yoshinobu Baba ,  Takeshi Ikeda ,  Yuko Sato ,  Hitoshi Itabashi ,  Yuzo Tokunaga

发明人： Yoshinobu Baba ,  Takeshi Ikeda ,  Yuko Sato ,  Hitoshi Itabashi ,  Yuzo Tokunaga

IPC分类号： G03G9/08 ,  G03G9/10 ,  G03G9/107 ,  G03G9/113 ,  G03G13/09

CPC分类号： G03G9/0827 ,  G03G9/0821 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1132 ,  G03G9/1136

摘要： A magnetic coated carrier suitable for constituting a two-component type developer for use in electrophotography is composed of magnetic coated carrier particles comprising magnetic coated carrier particles comprising magnetic carrier core particles each comprising a binder resin and metal oxide particles, and a coating layer surface-coating each carrier core particle. The metal oxide particles have been subjected to a surface lipophilicity-imparting treatment. The magnetic carrier core particles have a resistivity of at least 1.times.10.sup.10 ohm.cm, and the magnetic coated carrier has a resistivity of at least 1.times.10.sup.12 ohm.cm. The magnetic coated carrier has a particle size distribution such that (i) it has a number-average particle size Dn of 5-100 .mu.m, (ii) it satisfies a relationship of Dn/.sigma..gtoreq.3.5, wherein .sigma. denotes a standard deviation of number-basis particle size distribution of the carrier, and (iii) it contains at most 25% by number of particles having particle sizes of at most Dn.times.2/3.

摘要翻译： 适用于构成用于电子照相术的双组分型显影剂的磁性涂层载体由包括磁性涂覆载体颗粒的磁性涂覆载体颗粒组成，所述磁性涂覆载体颗粒包括各自包含粘合剂树脂和金属氧化物颗粒的磁性载体芯颗粒，以及涂层表面 - 涂覆每个载体芯颗粒。 金属氧化物颗粒已进行表面亲油性赋予处理。 磁性载体芯颗粒具有至少1×10 10欧姆·厘米的电阻率，并且磁性涂覆载体的电阻率至少为1×10 12欧姆·厘米。 磁性涂层载体具有如下的粒度分布：（i）其数均粒径Dn为5-100μm，（ii）满足Dn / sigma = 3.5的关系，其中σ表示 载体的基于数量的粒度分布的标准偏差，和（iii）其含有至多25％数量的粒径至多Dnx + E，fra 2/3 + EE的颗粒。

公开(公告)号：US20080050670A1

公开(公告)日：2008-02-28

申请号：US11846308

申请日：2007-08-28

申请人： Yasukazu Ayaki ,  Takeshi Ikeda ,  Tomohito Ishida ,  Nobuyuki Itoh

发明人： Yasukazu Ayaki ,  Takeshi Ikeda ,  Tomohito Ishida ,  Nobuyuki Itoh

IPC分类号： G03G9/08

CPC分类号： G03G9/0821 ,  G03G9/09 ,  G03G9/0906 ,  G03G9/0926

摘要： The present invention provides: a toner kit having a deep toner and a pale toner which are separated from each other, wherein: the deep toner and the pale toner satisfy prescribed conditions for an L*a*b* color coordinate system where a* represents a hue in the red-green direction, b* represents a hue in the yellow-blue direction, and L* represents a lightness; the pale toner and the deep toner to be used in the toner kit; and a method for forming an image using the toner kit. Thus, the present invention can form a high quality image, while suppressing graininess and roughness over the areas covering from the low density area to the high density area.

摘要翻译： 本发明提供：具有相互分离的深调色剂和淡调色剂的调色剂试剂盒，其中：深色调色剂和淡调色剂满足L * a * b *色坐标系的规定条件，其中a表示 红绿色方向的色调b *表示黄 - 蓝方向的色调，L *表示亮度; 调色剂盒中使用的淡色调色剂和深色调色剂; 以及使用调色剂试剂盒形成图像的方法。 因此，本发明能够形成高质量的图像，同时抑制从低密度区域到高密度区域覆盖的区域的颗粒性和粗糙度。

公开(公告)号：US06879788B2

公开(公告)日：2005-04-12

申请号：US10648318

申请日：2003-08-27

申请人： Nobuyuki Ito ,  Takeshi Ikeda ,  Yukio Nagase ,  Isami Itoh ,  Yasukazu Ayaki ,  Tomohito Ishida

发明人： Nobuyuki Ito ,  Takeshi Ikeda ,  Yukio Nagase ,  Isami Itoh ,  Yasukazu Ayaki ,  Tomohito Ishida

IPC分类号： G03G15/08 ,  G01N21/59 ,  G03G15/00 ,  G03G15/01 ,  G03G15/06 ,  G03G15/14 ,  G03G21/00

CPC分类号： G01N21/5907 ,  G01N2021/5915 ,  G03G15/5041 ,  G03G15/5058 ,  G03G2215/00042

摘要： The image forming apparatus includes an image forming unit capable of forming an image with a hypochromic toner and a hyperchromic toner of a substantially same hue, a first toner containing portion containing the hypochromic toner, a second toner containing portion containing the hyperchromic toner, and a density detecting unit which detects a density of an image formed with the hypochromic toner and the hyperchromic toner. Thus an image can be formed with the hypochromic toner and the hyperchromic toner of a substantially same hue.

摘要翻译： 图像形成装置包括能够形成具有低色调调色剂的图像的图像形成单元和基本相同的色相的增色调色剂，包含低色调调色剂的第一调色剂容纳部分，含有超色调色剂的第二调色剂容纳部分和 密度检测单元，其检测由所述低色调剂和所述增色调色剂形成的图像的浓度。 因此，可以用低色调调色剂和基本相同色调的变色调色剂形成图像。