公开(公告)号：US20090180788A1

公开(公告)日：2009-07-16

申请号：US12319628

申请日：2009-01-09

申请人： Nozomu Tamoto ,  Hiromi Tada ,  Takafumi Iwamoto ,  Yoshinori Inaba

发明人： Nozomu Tamoto ,  Hiromi Tada ,  Takafumi Iwamoto ,  Yoshinori Inaba

IPC分类号： G03G15/00

CPC分类号： G03G5/0535 ,  G03G5/043 ,  G03G5/047 ,  G03G5/0564 ,  G03G5/0614 ,  G03G5/0696 ,  G03G5/14721 ,  G03G5/14769 ,  G03G15/0266 ,  G03G15/20 ,  G03G15/751 ,  G03G2215/00957 ,  G03G2215/025

摘要： An image forming apparatus including an image bearing member bearing an electrostatic latent image thereon, a charging device charging the image bearing member, a light irradiating device irradiating the charged image bearing member with light to form the electrostatic latent image, and a developing device developing the electrostatic latent image to form a toner image, wherein the charging time determined by dividing the width of a charging area charged by the charging device in units of mm by the linear velocity of the image bearing member in units of mm/msec is not shorter than the transit time of the image bearing member. The transit time is defined as the time at which an inflection point is firstly observed in a curve showing relationship of the interval between light irradiation and measurement of potential of an irradiated portion with the potential of the irradiated portion, when the interval is shortened.

摘要翻译： 一种图像形成装置，包括在其上承载静电潜像的图像承载部件，对图像承载部件充电的充电装置，用光照射带电图像承载部件以形成静电潜像的光照射装置，以及显影装置， 静电潜像以形成调色剂图像，其中通过将由充电装置充电的充电区域的宽度以mm为单位以图像承载部件的线速度除以mm / msec为单位而确定的充电时间不短于 图像承载部件的通行时间。 通过时间定义为在间隔缩短时示出在光照射与照射部分的电位与测量照射部分的电位之间的关系的曲线中首次观察到拐点的时间。

公开(公告)号：US20090185821A1

公开(公告)日：2009-07-23

申请号：US12319806

申请日：2009-01-12

申请人： Takafumi Iwamoto ,  Nozomu Tamoto ,  Hiromi Tada

发明人： Takafumi Iwamoto ,  Nozomu Tamoto ,  Hiromi Tada

IPC分类号： G03G21/18 ,  G03G15/02 ,  G03G5/07 ,  G03G15/00

CPC分类号： G03G5/0696 ,  G03G5/0535 ,  G03G5/0614 ,  G03G5/14721 ,  G03G5/14734 ,  G03G5/14791 ,  G03G15/75

摘要： An electrophotographic photoreceptor including a conductive substrate; a charge generation layer comprising a metal phthalocyanine pigment as a charge generation material, located overlying the conductive substrate; a charge transport layer comprising a charge transport material having a triarylamine structure, located overlying the charge generation layer; and a cross-linked charge transport layer formed by hardening a radical-polymerizable monomer having no charge transport structure and a radical-polymerizable compound having a charge transport structure, located overlying the charge transport layer. The electrophotographic photoreceptor satisfies the following equations (1) and (2): −0.16≦Ip(T)−Ip(G)≦0.07   (1) 0.07

摘要翻译： 一种电子照相感光体，包括导电性基材; 电荷产生层，其包含金属酞菁颜料作为电荷产生材料，位于导电基底的上方; 电荷输送层，其包含位于电荷产生层上方的具有三芳基胺结构的电荷输送材料; 以及通过硬化具有电荷输送结构的自由基聚合性单体和具有电荷输送结构的自由基聚合性化合物形成的交联电荷输送层，位于电荷输送层的上方。 电子照相感光体满足以下等式（1）和（2）：<？in-line-formula description =“In-line formula”end =“lead”？> 0.16 <= Ip（T）-Ip（G） <= 0.07（1）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> 0.07 其中Ip（G），Ip（T） Ip（O）分别表示电荷产生层，电荷输送层和交联电荷输送层的电离电位。

公开(公告)号：US08178266B2

公开(公告)日：2012-05-15

申请号：US12489833

申请日：2009-06-23

申请人： Hiromi Tada ,  Nozomu Tamoto ,  Tomoyuki Shimada ,  Takafumi Iwamoto

发明人： Hiromi Tada ,  Nozomu Tamoto ,  Tomoyuki Shimada ,  Takafumi Iwamoto

IPC分类号： G03G5/047

CPC分类号： G03G5/144 ,  G03G5/0521 ,  G03G5/0542 ,  G03G5/0592 ,  G03G5/0596 ,  G03G5/0614 ,  G03G5/0672 ,  G03G5/0696 ,  G03G5/14791 ,  Y10S430/103

摘要： An electrophotographic photoreceptor is provided that contains a conductive substrate, an undercoat layer, a charge generation layer, and a charge transport layer, wherein the under coat layer contains a binder resin and multiple inorganic pigments each having different average primary particle diameters in a total amount of from 75 to 86% by weight, the charge generation layer contains a binder resin and a titanyl phthalocyanine pigment having a specific X-ray diffraction spectrum in an amount of from 70 to 85% by weight, the charge transport layer comprises a specific distyryl compound, and the following formulae (2-1) to (2-3) are satisfied: 0.2≦(D(F2)/D(G))≦0.5  (2-1) 0.2≦D(F1)  (2-2) D(F2)≦D(F1)  (2-3) wherein D(F1) (μm) and D(F2) (μm) represent average primary particle diameters of the largest and smallest inorganic pigments, respectively, and D(G) (μm) represents an average primary particle diameter of the titanyl phthalocyanine pigment.

摘要翻译： 提供一种电子照相感光体，其包含导电性基材，底涂层，电荷产生层和电荷输送层，其中，所述底涂层含有粘合剂树脂和各自具有总量不同的平均一次粒径的多种无机颜料 为75〜86重量％，电荷产生层含有粘合剂树脂和重量百分比为70〜85重量％的特定X射线衍射光谱的钛酞菁颜料，电荷传输层包含特定的二苯乙烯基 化合物，满足下列式（2-1）〜（2-3）：0.2＆nlE;（D（F2）/ D（G））＆nlE; 0.5（2-1）0.2＆ 2-2）D（F2）＆nlE; D（F1）（2-3）其中D（F1）（μm）和D（F2）（μm）分别代表最大和最小无机颜料的平均一次粒径， D（G）（μm）表示钛酞菁颜料的平均一次粒径。

公开(公告)号：US20090324281A1

公开(公告)日：2009-12-31

申请号：US12489833

申请日：2009-06-23

申请人： Hiromi Tada ,  Nozomu Tamoto ,  Tomoyuki Shimada ,  Takafumi Iwamoto

发明人： Hiromi Tada ,  Nozomu Tamoto ,  Tomoyuki Shimada ,  Takafumi Iwamoto

IPC分类号： G03G21/16 ,  G03G5/04 ,  G03G15/00

CPC分类号： G03G5/144 ,  G03G5/0521 ,  G03G5/0542 ,  G03G5/0592 ,  G03G5/0596 ,  G03G5/0614 ,  G03G5/0672 ,  G03G5/0696 ,  G03G5/14791 ,  Y10S430/103

摘要： An electrophotographic photoreceptor is provided that contains a conductive substrate, an undercoat layer, a charge generation layer, and a charge transport layer, wherein the under coat layer contains a binder resin and multiple inorganic pigments each having different average primary particle diameters in a total amount of from 75 to 86% by weight, the charge generation layer contains a binder resin and a titanyl phthalocyanine pigment having a specific X-ray diffraction spectrum in an amount of from 70 to 85% by weight, the charge transport layer comprises a specific distyryl compound, and the following formulae (2-1) to (2-3) are satisfied: 0.2≦(D(F2)/D(G))≦0.5  (2-1) 0.2≦D(F1)  (2-2) D(F2)≦D(F1)  (2-3) wherein D(F1) (μm) and D(F2) (μm) represent average primary particle diameters of the largest and smallest inorganic pigments, respectively, and D(G) (μm) represents an average primary particle diameter of the titanyl phthalocyanine pigment.

摘要翻译： 提供一种电子照相感光体，其包含导电性基材，底涂层，电荷产生层和电荷输送层，其中，所述底涂层含有粘合剂树脂和各自具有总量不同的平均一次粒径的多种无机颜料 为75〜86重量％，电荷产生层含有粘合剂树脂和重量百分比为70〜85重量％的特定X射线衍射光谱的钛酞菁颜料，电荷传输层包含特定的二苯乙烯基 化合物和满足以下公式（2-1）至（2-3）：0.2D（F2）/ D（G））0.2D（F1）（2-2）D（F2）D（F1）（ 2-3）其中D（F1）（mum）和D（F2）（mum）分别表示最大和最小的无机颜料的平均一次粒径，D（G）（mum）表示平均一次粒径 钛酞菁颜料。

公开(公告)号：US08568945B2

公开(公告)日：2013-10-29

申请号：US12625746

申请日：2009-11-25

申请人： Hiromi Tada ,  Naohiro Toda ,  Yuuji Tanaka ,  Norio Nagayama ,  Yoshinori Inaba ,  Takafumi Iwamoto

发明人： Hiromi Tada ,  Naohiro Toda ,  Yuuji Tanaka ,  Norio Nagayama ,  Yoshinori Inaba ,  Takafumi Iwamoto

IPC分类号： G03G5/047 ,  G03G15/04

CPC分类号： G03G5/0575 ,  G03G5/0542 ,  G03G5/0592 ,  G03G5/0696 ,  G03G2215/00957

摘要： An electrophotographic photoreceptor, including a charge generation layer and a charge transport layer on an electroconductive substrate, wherein the charge generation layer includes titanylphthalocyanine and a binder resin which is a crosslinked material of a resin comprising a polyvinylbutyrat site having the following formula (1) and an isocyanate compound having the following formula (2): wherein R1 and R2 independently represent an alkyl group having 1 to 3 carbon atoms; k, l, m and n represent composition ratios and k+1 is from 0.60 to 0.80, wherein k or 1 may be 0, m is from 0.02 to 0.03, and n is from 0.20 to 0.40; wherein A represents a substituted or unsubstituted organic group having 2 to 4 valences; and O represents an integer of from 2 to 4.

摘要翻译： 一种电子照相感光体，包括在导电性基体上的电荷产生层和电荷传输层，其中电荷产生层包括钛氧基酞菁和作为包含具有下式（1）的聚乙烯基丁酸酯位置的树脂的交联材料的粘合剂树脂和 具有下式（2）的异氰酸酯化合物：其中R 1和R 2独立地表示具有1至3个碳原子的烷基; k，l，m和n表示组成比，k + 1为0.60〜0.80，其中k或1可以为0，m为0.02〜0.03，n为0.20〜0.40; 其中A表示取代或未取代的有2-4价的有机基团; O表示2〜4的整数。

公开(公告)号：US08512436B2

公开(公告)日：2013-08-20

申请号：US11575360

申请日：2005-08-22

申请人： Mitsuo Kawasaki ,  Osamu Kajita ,  Ayu Onishi ,  Sachiko Masuoka ,  Takafumi Iwamoto ,  Eitaro Yasuda

发明人： Mitsuo Kawasaki ,  Osamu Kajita ,  Ayu Onishi ,  Sachiko Masuoka ,  Takafumi Iwamoto ,  Eitaro Yasuda

IPC分类号： B22F9/14 ,  B82Y40/00

CPC分类号： B22F9/02 ,  B22F1/0018 ,  B22F2998/00 ,  B82Y30/00 ,  Y10T428/2982 ,  B22F2202/11 ,  B22F1/0022

摘要： There is provided a method for efficiently manufacturing metal nano particles without condensing laser beams by using a lens etc. In this method, first, metallic foil pieces, which are a starting material, are dispersed in a dispersion liquid. Next, laser beams are irradiated directly to the metallic foil pieces without providing a condensing means, by which many metal fine particles are yielded. The particle diameters of the metal fine particles obtained can be controlled to sizes from nano particles to submicron particles by utilizing the relationship between the shape (especially thickness) of the metallic foil piece which is a starting material and the absorbed energy of the laser beam.

摘要翻译： 提供了通过使用透镜等而有效地制造金属纳米颗粒而不凝聚激光束的方法。首先，将作为原料的金属箔片分散在分散液中。 接下来，激光束直接照射到金属箔片上，而不提供冷凝装置，由此产生许多金属微粒。 通过利用作为起始材料的金属箔片的形状（特别是厚度）与激光束的吸收能量之间的关系，可以将所获得的金属微粒的粒径控制为从纳米颗粒到亚微米颗粒的尺寸。

公开(公告)号：US20090053523A1

公开(公告)日：2009-02-26

申请号：US11575360

申请日：2005-08-22

申请人： Mitsuo Kawasaki ,  Osamu Kajita ,  Ayu Onishi ,  Sachiko Masuoka ,  Takafumi Iwamoto ,  Eitaro Yasuda

发明人： Mitsuo Kawasaki ,  Osamu Kajita ,  Ayu Onishi ,  Sachiko Masuoka ,  Takafumi Iwamoto ,  Eitaro Yasuda

IPC分类号： B32B15/02 ,  B22F9/14 ,  C07C49/08 ,  C07C49/00

CPC分类号： B22F9/02 ,  B22F1/0018 ,  B22F2998/00 ,  B82Y30/00 ,  Y10T428/2982 ,  B22F2202/11 ,  B22F1/0022

摘要： There is provided a method for efficiently manufacturing metal nano particles without condensing laser beams by using a lens etc. In this method, first, metallic foil pieces, which are a starting material, are dispersed in a dispersion liquid. Next, laser beams are irradiated directly to the metallic foil pieces without providing a condensing means, by which many metal fine particles are yielded. The particle diameters of the metal fine particles obtained can be controlled to sizes from nano particles to submicron particles by utilizing the relationship between the shape (especially thickness) of the metallic foil piece which is a starting material and the absorbed energy of the laser beam.

摘要翻译： 提供了通过使用透镜等而有效地制造金属纳米颗粒而不凝聚激光束的方法。首先，将作为原料的金属箔片分散在分散液中。 接下来，激光束直接照射到金属箔片上，而不提供冷凝装置，由此产生许多金属微粒。 通过利用作为起始材料的金属箔片的形状（特别是厚度）与激光束的吸收能量之间的关系，可以将所获得的金属微粒的粒径控制为从纳米颗粒到亚微米颗粒的尺寸。

公开(公告)号：US09298113B2

公开(公告)日：2016-03-29

申请号：US14155716

申请日：2014-01-15

申请人： Toshihiro Ishida ,  Hiroshi Ikuno ,  Tetsuya Toshine ,  Naohiro Toda ,  Takafumi Iwamoto ,  Kazuhiro Egawa

发明人： Toshihiro Ishida ,  Hiroshi Ikuno ,  Tetsuya Toshine ,  Naohiro Toda ,  Takafumi Iwamoto ,  Kazuhiro Egawa

IPC分类号： G03G15/04 ,  G03G15/01 ,  G03G5/06 ,  G03G5/05 ,  G03G5/147

CPC分类号： G03G5/0614 ,  G03G5/0596 ,  G03G5/14704 ,  G03G5/14708 ,  G03G5/14795

摘要： An electrophotographic photoconductor, including: an electroconductive substrate; and at least a photoconductive layer and a surface layer in this order over the electroconductive substrate, wherein the surface layer includes a resin having no charge transport properties, and first inorganic fine particles, and wherein the first inorganic fine particles are inorganic fine particles having surfaces modified with at least one of a primary amino group and a secondary amino group, and a volume resistivity of the first inorganic fine particles is 1×108 Ω·cm or less.

摘要翻译： 电子照相感光体，包括：导电性基材; 以及至少一层导电层和表面层，其中表面层包括不具有电荷传输性能的树脂和第一无机细颗粒，并且其中第一无机细颗粒是具有表面的无机细颗粒 用伯氨基和仲氨基中的至少一种进行了改性，第一无机微粒的体积电阻率为1×10 8Ω·cm·cm以下。

公开(公告)号：US08637216B2

公开(公告)日：2014-01-28

申请号：US13272515

申请日：2011-10-13

申请人： Takafumi Iwamoto ,  Naohiro Toda ,  Chieko Yamazaki

发明人： Takafumi Iwamoto ,  Naohiro Toda ,  Chieko Yamazaki

IPC分类号： G03G5/00

CPC分类号： G03G15/751 ,  G03G5/14704 ,  G03G5/14708 ,  G03G5/14717 ,  G03G5/14791 ,  G03G5/14795

摘要： An electrophotographic photoreceptor including an electroconductive substrate, a photosensitive layer, and a cured protection layer, wherein the cured protection layer comprises a cured material of a tri- or more functional radical polymerizable compound and a filler exposed from the surface of the cured protection layer which comprises a bump along the surface of the filler, and wherein the cured protection layer has a thickness (T) larger than a diameter (2r) of the filler therein and the following relationships (a) is satisfied: (the number of the fillers present to a depth of T/2 from a free surface of the cured protection layer/the total number of the fillers in the cured protection layer)×100≧7%  (a).

摘要翻译： 一种电子照相感光体，包括导电性基体，感光层和固化保护层，其中固化保护层包含三官能以上的自由基聚合性化合物的固化物和从固化保护层的表面露出的填料， 包括沿着填料表面的凸块，其中固化保护层的厚度（T）大于其中填料的直径（2r），并满足以下关系式（a）：（存在的填料数量 从固化保护层的自由表面/固化保护层中的填料总数到T / 2的深度）×100> = 7％（a）。

公开(公告)号：US20080311499A1

公开(公告)日：2008-12-18

申请号：US12133089

申请日：2008-06-04

申请人： Hidetoshi KAMI ,  Tetsuro Suzuki ,  Hiroshi Tamura ,  Hiroshi Ikuno ,  Yukio Fujiwara ,  Takafumi Iwamoto

发明人： Hidetoshi KAMI ,  Tetsuro Suzuki ,  Hiroshi Tamura ,  Hiroshi Ikuno ,  Yukio Fujiwara ,  Takafumi Iwamoto

IPC分类号： G03G15/04 ,  G03G15/00

CPC分类号： G03G5/14769 ,  G03G5/1476 ,  G03G5/14791 ,  G03G15/75

摘要： An electrophotographic photoreceptor, including an electroconductive substrate; a photosensitive layer, located overlying the electroconductive substrate; and a crosslinked resin surface layer, located overlying the photo sensitive layer, wherein the crosslinked resin surface layer includes a crosslinked body of trimethylolpropanetriacrylate, isocyanate including a radical polymerizable functional group and a heat or a light-curable charge transport material.

摘要翻译： 电子照相感光体，包括导电性基材; 位于导电基底上的感光层; 和位于上述光敏层的交联树脂表面层，其中交联树脂表面层包括三羟甲基丙烷三丙烯酸酯的交联体，含有可自由基聚合的官能团的异氰酸酯，以及加热或可光固化的电荷输送材料。