公开(公告)号：US5976750A

公开(公告)日：1999-11-02

申请号：US14001

申请日：1998-01-27

申请人： Masayuki Hagi ,  Junichi Tamaoki ,  Takeshi Arai ,  Hiroyuki Fukuda

发明人： Masayuki Hagi ,  Junichi Tamaoki ,  Takeshi Arai ,  Hiroyuki Fukuda

IPC分类号： G03G9/08 ,  G03G9/097

CPC分类号： G03G9/0819 ,  G03G9/09708

摘要： The present invention provides an electrostatic latent developing toner which comprises:toner particles containing a colorant and a binder resin, the toner particles satisfying the following relation:1.45-0.05 D.sub.50 .ltoreq.D.sub.25 /D.sub.75 .ltoreq.1.75-0.05D.sub.50(1)(in which D.sub.25, D.sub.50 and D.sub.75 denote toner particle sizes such that when the toner particles are integrated from the larger particle side, the volume percentages of toner particles of respective particle sizes are 25%, 50%, and 75% based on the total volume of the toner particles), particle size D.sub.50 being within the range of from 3 to 7 .mu.m; orthe toner particles having a volume-mean particle size of 3 to 7 .mu.m and a shape factor SF1 of 100 to 130 as expressed by the following relation (2):SF1={100 .pi..times.(max length).sup.2 }/{4.times.(area)} (2)(in which, "max length" represents mean value of maximum lengths of projected toner particle images, and "area" represents mean value of projected toner particle areas); andan external additive admixed with the toner particles, the external additive containing hydrophobic inorganic fine particles A having a number-mean particle size of 5 to 70 nm, and inorganic fine particles B having a number-mean particle size of 80 to 800 nm with a 20 number % or less content of particles having a particle size of 1000 nm or more.

摘要翻译： 本发明提供了一种静电潜像显影调色剂，其包括：含有着色剂和粘合剂树脂的调色剂颗粒，满足以下关系的调色剂颗粒：1.45-0.05 D50 D25 / D75

公开(公告)号：US20110244383A1

公开(公告)日：2011-10-06

申请号：US13080053

申请日：2011-04-05

申请人： Atsushi YAMAMOTO ,  Takuya Kadota ,  Masayuki Hagi

发明人： Atsushi YAMAMOTO ,  Takuya Kadota ,  Masayuki Hagi

IPC分类号： G03G9/00 ,  G03G15/08

CPC分类号： G03G9/08755 ,  G03G9/0806 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09328 ,  G03G9/09335 ,  G03G9/09371 ,  G03G9/09378 ,  G03G2215/0604

摘要： A toner including an amorphous resin (R), a crystalline material (A) which is compatible with the amorphous resin (R) and has a melting point of 80° C. or lower, a resin (I) which is different from the amorphous resin (R), and a colorant, wherein the crystalline material (A) is capsulated by the resin (I) and the capsulated crystalline material (A) is present in the amorphous resin (R).

摘要翻译： 包含非晶性树脂（R），与无定形树脂（R）相容并且具有80℃或更低的熔点的结晶材料（A）的调色剂，不同于非晶态的树脂（I） 树脂（R）和着色剂，其中结晶材料（A）被树脂（I）包封，并且包封的结晶材料（A）存在于无定形树脂（R）中。

公开(公告)号：US06777151B2

公开(公告)日：2004-08-17

申请号：US10334221

申请日：2002-12-31

申请人： Masayuki Hagi ,  Junichi Tamaoki ,  Megumi Aoki ,  Hiroaki Kato

发明人： Masayuki Hagi ,  Junichi Tamaoki ,  Megumi Aoki ,  Hiroaki Kato

IPC分类号： G03G908

CPC分类号： G03G9/09716 ,  G03G9/09708 ,  G03G9/09725 ,  G03G13/013 ,  G03G2215/0119

摘要： The present invention relates to a negatively chargeable toner, comprising: toner particles prepared by means of a wet granulation method; and external additives externally added to the toner particles, wherein the external additives comprises a first hydrophobic silica having a mean primary particle size of 5 nm to 18 nm, a second hydrophobic silica having a mean primary particle size of 18 nm to 50 nm, which is greater than that of the first hydrophobic silica, and a hydrophobic titanium oxide having a mean primary particle size of 10 nm to 40 nm, and a full color image-forming method using the negatively chargeable toner.

摘要翻译： 本发明涉及带负电的调色剂，其包括：通过湿式造粒法制备的调色剂颗粒; 外部添加剂外部添加到调色剂颗粒中，其中外部添加剂包括平均一次粒径为5nm至18nm的第一疏水性二氧化硅，第一疏水性二氧化硅的平均一次粒径为18nm至50nm，其为 大于第一疏水性二氧化硅和平均一次粒径为10nm至40nm的疏水性氧化钛，以及使用可带负电荷的调色剂的全色图像形成方法。

公开(公告)号：US06335135B1

公开(公告)日：2002-01-01

申请号：US09477369

申请日：2000-01-04

申请人： Takeshi Arai ,  Junichi Tamaoki ,  Masayuki Hagi ,  Megumi Aoki

发明人： Takeshi Arai ,  Junichi Tamaoki ,  Masayuki Hagi ,  Megumi Aoki

IPC分类号： G03G908

CPC分类号： G03G9/09716 ,  G03G9/0819 ,  G03G9/09708

摘要： The present invention relates to a toner comprising toner particles and an external additive comprising strontium titanate particles that have a number-average particle size of 80 to 800 nm and do not have a peak of strontium carbonate in qualitative analysis by X-ray diffraction.

摘要翻译： 本发明涉及包含调色剂颗粒和外部添加剂的外部添加剂，其通过X射线衍射定性分析，包括数均粒径为80至800nm且不具有碳酸锶峰的钛酸锶颗粒。

公开(公告)号：US06194116B1

公开(公告)日：2001-02-27

申请号：US09461114

申请日：1999-12-14

申请人： Yoshikazu Nishihara ,  Junichi Tamaoki ,  Masayuki Hagi ,  Takeshi Arai

发明人： Yoshikazu Nishihara ,  Junichi Tamaoki ,  Masayuki Hagi ,  Takeshi Arai

IPC分类号： G03G9097

CPC分类号： G03G9/09733 ,  G03G9/097

摘要： The present invention relates to toner comprising: toner particles containing a binder resin and a colorant; and organic fine particles admixed with the toner particles, the organic fine particles having a volume average particle size of 0.1 to 20 &mgr;m and containing alkyl carboxylic acid having a number average molecular weight of 300 to 1000. The organic fine particles may be specified by an average number of carbon atoms of 20 to 70.

摘要翻译： 本发明涉及调色剂，其包含：含有粘合剂树脂和着色剂的调色剂颗粒; 和与调色剂颗粒混合的有机细颗粒，有机细颗粒的体积平均粒径为0.1至20μm，含有数均分子量为300至1000的烷基羧酸。有机细颗粒可以由平均值 碳原子数为20〜70。

公开(公告)号：US6132920A

公开(公告)日：2000-10-17

申请号：US435623

申请日：1999-11-08

申请人： Masayuki Hagi ,  Junichi Tamaoki ,  Takeshi Arai ,  Megumi Aoki

发明人： Masayuki Hagi ,  Junichi Tamaoki ,  Takeshi Arai ,  Megumi Aoki

IPC分类号： G03G9/08 ,  G03G9/097

CPC分类号： G03G9/09708

摘要： The present invention relates to a toner comprising:toner particles containing a binder resin and a colorant; andan external addition agent that is admixed with the toner particles,the external addition agent comprising titanium oxide particles which are produced through a vapor-phase oxidizing method and has a number-average particle size of 0.1 to 0.7 .mu.m.

摘要翻译： 本发明涉及一种调色剂，其包含：含有粘合剂树脂和着色剂的调色剂颗粒; 和与调色剂颗粒混合的外部添加剂，外部添加剂包括通过气相氧化法制备的数均粒径为0.1-0.7μm的氧化钛颗粒。

公开(公告)号：US5759728A

公开(公告)日：1998-06-02

申请号：US803162

申请日：1997-02-19

申请人： Masayuki Hagi ,  Junichi Tamaoki ,  Takeshi Arai ,  Hiroyuki Fukuda

发明人： Masayuki Hagi ,  Junichi Tamaoki ,  Takeshi Arai ,  Hiroyuki Fukuda

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

CPC分类号： G03G9/0904

摘要： The present invention relates to a black toner for developing electrostatic latent images, comprising at least a binder resin and carbon black, characterized in that a mean primary particles size and particle size distribution of the carbon black dispersed in the binder resin are adjusted within a specified range.

摘要翻译： 本发明涉及一种用于显影静电潜像的黑色调色剂，其至少包含粘合剂树脂和炭黑，其特征在于将分散在粘合剂树脂中的炭黑的平均一次颗粒尺寸和颗粒尺寸分布调整到指定的 范围。

公开(公告)号：US5840458A

公开(公告)日：1998-11-24

申请号：US600375

申请日：1996-02-13

申请人： Kenichi Kido ,  Katsunori Kurose ,  Takeshi Arai ,  Masayuki Hagi

发明人： Kenichi Kido ,  Katsunori Kurose ,  Takeshi Arai ,  Masayuki Hagi

IPC分类号： G03G9/087 ,  G03G9/097 ,  G03G9/08

CPC分类号： G03G9/08755 ,  G03G9/09708 ,  Y10S430/104

摘要： The present invention relates to a developer comprising toner to which laminated titanium oxide is externally added.

摘要翻译： 本发明涉及一种包含调色剂的显影剂，向外部添加层压氧化钛。

公开(公告)号：US5794105A

公开(公告)日：1998-08-11

申请号：US609834

申请日：1996-03-01

申请人： Junichi Tamaoki ,  Ichiro Demizu ,  Takeshi Arai ,  Katsunori Kurose ,  Masayuki Hagi ,  Hiroyuki Fukuda

发明人： Junichi Tamaoki ,  Ichiro Demizu ,  Takeshi Arai ,  Katsunori Kurose ,  Masayuki Hagi ,  Hiroyuki Fukuda

IPC分类号： G03G9/087 ,  G03G13/01 ,  G03G13/20 ,  G03G9/08 ,  G03G15/00

CPC分类号： G03G9/08797 ,  G03G13/013 ,  G03G13/20 ,  G03G9/08704 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08795

摘要： A toner for full-color development for use in a developing system of a full-color image forming apparatus which comprises a binder resin having a glass transition point Tg of from 60.degree. to 75.degree. C., a number-average molecular weight Mn of from 3500 to 6000, a ratio of a weight-average molecular weight Mw to the number-average molecular weight Mn (Mw/Mn) ranging from 3 to 8, and a difference between a temperature T.sub.1 at the apparent melt viscosity of 1.times.10.sup.5 poise and a temperature T.sub.2 at the apparent melt viscosity of 1.times.10.sup.6 poise DT (=T.sub.1 -t.sub.2) in the range of from 8.degree. to 15.degree. C.

摘要翻译： 一种用于全色图像形成装置的显影系统中的全色显影用调色剂，其包含玻璃化转变点Tg为60〜75℃的粘合剂树脂，数均分子量Mn为 从3500至6000，重均分子量Mw与数均分子量Mn（Mw / Mn）的比例为3至8，表观熔体粘度为1×10-5泊的温度T1与 表观熔体粘度为1×106泊DT（= T1-t2）的温度T2为8〜15℃。

公开(公告)号：US5776646A

公开(公告)日：1998-07-07

申请号：US879330

申请日：1997-06-20

申请人： Masayuki Hagi ,  Takeshi Arai ,  Junichi Tamaoki ,  Hiroyuki Fukuda

发明人： Masayuki Hagi ,  Takeshi Arai ,  Junichi Tamaoki ,  Hiroyuki Fukuda

IPC分类号： G03G9/097 ,  G03G9/107

CPC分类号： G03G9/097 ,  G03G9/09708

摘要： The invention relates to: (1) negatively chargeable toner particles with inorganic fine particles externally added thereto, the inorganic fine particles having a specified number-mean particle size and a specified chargeability, and (2) toner particles with silica fine particles and titania fine particles added to the toner particles in specified quantities and respectively having a specified number-mean particle size and a specified degree of hydrophobicity and, in combination therewith, inorganic particles having a specified number-mean particle size added to the toner particles. The toner of the present invention has good environmental stability, non-sticking characteristic, and good storage stability, and is capable of forming good images without aggregation noise and free of fogging after repetition of copy. The toner is suitable for full-color image formation in particular.

摘要翻译： 本发明涉及：（1）具有外部添加的无机细颗粒的带负电荷的调色剂颗粒，所述无机细颗粒具有指定的数均粒径和指定的带电性，和（2）具有二氧化硅细颗粒和二氧化钛的调色剂颗粒 颗粒以规定的量添加到调色剂颗粒中，并且分别具有指定的数均粒径和特定的疏水度，并且与其组合，添加到调色剂颗粒中的具有指定数均粒径的无机颗粒。 本发明的调色剂具有良好的环境稳定性，不粘特性和良好的储存稳定性，能够在没有聚集噪声的情况下形成良好的图像，并且在重复复制之后不会起雾。 该调色剂特别适用于全色图像形成。