公开(公告)号：US06090514A

公开(公告)日：2000-07-18

申请号：US367897

申请日：1999-08-20

申请人： Mikio Kakui ,  Hirofumi Kawaguchi ,  Akihiko Kawahara ,  Kazunari Hamasaki ,  Yoshio Inagaki ,  Ayako Yashima

发明人： Mikio Kakui ,  Hirofumi Kawaguchi ,  Akihiko Kawahara ,  Kazunari Hamasaki ,  Yoshio Inagaki ,  Ayako Yashima

IPC分类号： G03G5/06

CPC分类号： G03G5/0666 ,  G03G5/0614 ,  G03G5/0657 ,  G03G5/0681 ,  G03G5/0696

摘要： The present invention provides an electrophotosensitive material comprising a conductive substrate and a single photosensitive layer containing a stilbene derivative (hole transferring material) represented by the general formula (1): ##STR1## (wherein R.sup.1, R.sup.2, R.sup.5 and R.sup.6 are the same or different and represent an alkyl group, an alkoxy group, an aryl group, an aralkyl group or a halogen atom; m, n, p and q are the same or different and represent an integer of 0 to 3, with the proviso that m and n represent a different integer when substituents represented by R.sup.1 and R.sup.2 are the same and that p and q represent a different integer when substituents represented by R.sup.5 and R.sup.6 are the same; and R.sup.3 and R.sup.4 are the same or different and represent a hydrogen atom or an alkyl group) and an electron transferring material, which is provided on the conductive substrate. This photosensitive material has high sensitivity and can be applied to any of positive and negative charging types with a single construction, and is also superior in optical characteristics.

摘要翻译： PCT No.PCT / JP98 / 00787 Sec。 371日期1999年8月20日 102（e）日期1999年8月20日PCT提交1998年2月25日PCT公布。 公开号WO98 / 38551 日期：1998年9月3日本发明提供一种电光敏材料，其包含导电性基材和含有通式（1）表示的二苯乙烯衍生物（空穴转移材料）的单一感光层：（其中R1，R2，R5和R6为 相同或不同，表示烷基，烷氧基，芳基，芳烷基或卤素原子; m，n，p和q相同或不同，表示0〜3的整数，条件是 当由R 1和R 2表示的取代基相同时，m和n表示不同的整数，并且当由R 5和R 6表示的取代基相同时，p和q表示不同的整数;并且R 3和R 4相同或不同，表示氢 原子或烷基）和电子转移材料，其设置在导电基板上。 该感光材料具有高灵敏度，并且可以应用于具有单一结构的任何正和负电荷类型，并且还具有优异的光学特性。

公开(公告)号：US06528645B1

公开(公告)日：2003-03-04

申请号：US09672021

申请日：2000-09-29

申请人： Kazunari Hamasaki ,  Yukimasa Watanabe ,  Hirofumi Kawaguchi ,  Mitsuo Ihara ,  Susumu Hiroshima ,  Daisuke Kuboshima

发明人： Kazunari Hamasaki ,  Yukimasa Watanabe ,  Hirofumi Kawaguchi ,  Mitsuo Ihara ,  Susumu Hiroshima ,  Daisuke Kuboshima

IPC分类号： C07D48722

CPC分类号： C09B67/0026 ,  C09B67/0022 ,  G03G5/0696

摘要： The present invention relates to a titanyl phthalocyanine crystal having excellent storage stability of coating solution, to satisfy that (a) the crystal does not have a peak of a change in temperature except for a peak associated with evaporation of adsorbed water in differential scanning calorimetry or that (b) the crystal recovered after dipping in an organic solvent for 24 hours at least a maximum peak at a Bragg angle 2&thgr;±0.2°=27.2° and has no peak at 26.2° in a CuK &agr; characteristic X-ray diffraction spectrum, and a method of producing the same; and an electrophotosensitive material using the above crystal, and a method of producing the same.

摘要翻译： 本发明涉及具有优异的涂布溶液保存稳定性的氧钛酞菁结晶，以满足以下条件：（a）晶体除差示扫描量热法中吸附水的蒸发相关峰值以外，不具有温度变化的峰值，或 （b）在有机溶剂中浸渍24小时后晶体在布拉格角2θ±0.2°= 27.2°处至少最大峰处回收，并且在CuKα特征X射线衍射光谱中在26.2°处没有峰， 及其制造方法。 和使用上述晶体的电光敏材料及其制造方法。

公开(公告)号：US08679710B2

公开(公告)日：2014-03-25

申请号：US11317852

申请日：2005-12-22

申请人： Daisuke Kuboshima ,  Eiichi Miyamoto ,  Kazunari Hamasaki ,  Norio Nakai ,  Yoshio Inagaki ,  Hideki Okada ,  Tetsuya Ichiguchi ,  Keiji Maruo

发明人： Daisuke Kuboshima ,  Eiichi Miyamoto ,  Kazunari Hamasaki ,  Norio Nakai ,  Yoshio Inagaki ,  Hideki Okada ,  Tetsuya Ichiguchi ,  Keiji Maruo

IPC分类号： G03G5/047 ,  G03G5/06

CPC分类号： G03G5/0614 ,  G03G5/047 ,  G03G5/0564 ,  G03G5/0605 ,  G03G5/0616 ,  G03G5/0666 ,  G03G5/0668

摘要： The present invention provides an electrophotographic photoreceptor comprising a photosensitive layer that contains at least a charge generating agent, a hole transport agent and a prede mulas (A) and (B). The electrophotographic photoreceptor prevents image defect termined additive. The hole transport agent satisfies the following for from occurring and can meet the demand for higher speed image forming apparatuses, by reducing the adhesion of paper dust and preventing the occurrence of cracks. ⁢ μ M 5.0 × 10 - 6 ⁢ ⁢ μ ⁢ : ⁢ ⁢ Hole ⁢ ⁢ mobility ⁢ ⁢ ( cm 2 · V - 1 · second - 1 ) ⁢ ⁢ of ⁢ ⁢ hole ⁢ ⁢ transport ⁢ ⁢ agent ⁢ ⁢ in ⁢ ⁢ the ⁢ ⁢ electric ⁢ ⁢ field ⁢ ⁢ intensity ⁢ ⁢ of ⁢ ⁢ 3 × 10 5 ⁢ ( V / cm ) ⁢ ⁢ M ⁢ : ⁢ ⁢ Molecular ⁢ ⁢ weight ⁢ ⁢ of ⁢ ⁢ hole ⁢ ⁢ transport ⁢ ⁢ agent ( B )

摘要翻译： 本发明提供一种电子照相感光体，其包含至少含有电荷产生剂，空穴传输剂和前体（A）和（B）的光敏层。 电子照相感光体防止图像缺陷终止的添加剂。 空穴输送剂由于发生而满足以下要求，可以通过降低纸灰尘的粘附性和防止发生裂纹而满足对高速成像装置的需求。 μM <1.2×10 -8（A）μ> 5.0×10 -6表示ud孔：胡氏迁移率（cm 2·V -1·第二-1） 孔侯传输üüüéééééééééé⁢⁢⁢⁢⁢⁢⁢⁢⁢3×10 5（V / cm） （B）

公开(公告)号：US07700251B2

公开(公告)日：2010-04-20

申请号：US11582588

申请日：2006-10-18

申请人： Norio Nakai ,  Kazunari Hamasaki ,  Daisuke Kuboshima ,  Yoshio Inagaki ,  Hideki Okada ,  Tetsuya Ichiguchi ,  Keiji Maruo

发明人： Norio Nakai ,  Kazunari Hamasaki ,  Daisuke Kuboshima ,  Yoshio Inagaki ,  Hideki Okada ,  Tetsuya Ichiguchi ,  Keiji Maruo

IPC分类号： G03G5/06

CPC分类号： G03G5/047 ,  G03G5/0517 ,  G03G5/0605 ,  G03G5/0609 ,  G03G5/0612 ,  G03G5/0618 ,  G03G5/062

摘要： An electrophotographic photoconductor having an excellent crack resistance and wear resistance as well as excellent sensitivity characteristics, while keeping good image characteristics of the photoconductor is provided. In addition, an image-forming apparatus equipped with such an electrophotographic photoconductor is also provided. The electrophotographic photoconductor includes a photosensitive layer containing at least a charge-generating agent, a hole-transfer agent, and a binder resin on a conductive substrate. The hole-transfer agent has a solubility of 5 to 35% by weight with respect to triglyceride oleate and the photosensitive layer contains a compound represented by the following general formula (1) as an additive:

摘要翻译： 提供具有优异的耐龟裂性和耐磨性以及优异的灵敏度特性的电子照相感光体，同时保持感光体的良好图像特性。 此外，还提供了配备有这种电子照相感光体的图像形成装置。 电子照相感光体包括在导电性基材上至少含有电荷发生剂，空穴转移剂和粘合剂树脂的感光层。 空穴转移剂相对于甘油三酯油酸盐的溶解度为5〜35重量％，感光层含有下述通式（1）表示的化合物作为添加剂：

公开(公告)号：US20070111118A1

公开(公告)日：2007-05-17

申请号：US11582588

申请日：2006-10-18

申请人： Norio Nakai ,  Kazunari Hamasaki ,  Daisuke Kuboshima ,  Yoshio Inagaki ,  Hideki Okada ,  Tetsuya Ichiguchi ,  Keiji Maruo

发明人： Norio Nakai ,  Kazunari Hamasaki ,  Daisuke Kuboshima ,  Yoshio Inagaki ,  Hideki Okada ,  Tetsuya Ichiguchi ,  Keiji Maruo

IPC分类号： G03G5/06

CPC分类号： G03G5/047 ,  G03G5/0517 ,  G03G5/0605 ,  G03G5/0609 ,  G03G5/0612 ,  G03G5/0618 ,  G03G5/062

摘要： An electrophotographic photoconductor having an excellent crack resistance and wear resistance as well as excellent sensitivity characteristics, while keeping good image characteristics of the photoconductor is provided. In addition, an image-forming apparatus equipped with such an electrophotographic photoconductor is also provided. The electrophotographic photoconductor includes a photosensitive layer containing at least a charge-generating agent, a hole-transfer agent, and a binder resin on a conductive substrate. The hole-transfer agent has a solubility of 5 to 35% by weight with respect to triglyceride oleate and the photosensitive layer contains a compound represented by the following general formula (1) as an additive:

摘要翻译： 提供具有优异的耐龟裂性和耐磨性以及优异的灵敏度特性的电子照相感光体，同时保持感光体的良好图像特性。 此外，还提供了配备有这种电子照相感光体的图像形成装置。 电子照相感光体包括在导电性基材上至少含有电荷发生剂，空穴转移剂和粘合剂树脂的感光层。 空穴转移剂相对于甘油三酯油酸盐的溶解度为5〜35重量％，感光层含有下述通式（1）表示的化合物作为添加剂：

公开(公告)号：US20070077507A1

公开(公告)日：2007-04-05

申请号：US11523370

申请日：2006-09-19

申请人： Junichiro Otsubo ,  Jun Azuma ,  Keiji Maruo ,  Yoshio Inagaki ,  Norio Nakai ,  Kazunari Hamasaki ,  Shiho Okawa

发明人： Junichiro Otsubo ,  Jun Azuma ,  Keiji Maruo ,  Yoshio Inagaki ,  Norio Nakai ,  Kazunari Hamasaki ,  Shiho Okawa

IPC分类号： G03G5/14

CPC分类号： G03G5/047 ,  G03G5/142 ,  G03G5/144

摘要： The present invention provides an electrophotographic photoconductor which can reduce the generation of fogging under a high-temperature and high-moisture condition and can be easily manufactured, and a method of manufacturing such an electrophotographic photoconductor. In an electrophotographic photoconductor which includes a support base body, an intermediate layer and a photoconductor layer and a manufacturing method of such an electrophotographic photoconductor, the intermediate layer contains titanium oxide and a binding resin and a ΔL value of the intermediate layer satisfies a following relationship formula (1) or a ΔA value of the intermediate layer satisfies a following relationship formula (2), that is, −5.0≦ΔL≦0 (1) and ΔA≦0.055 (2), wherein the ΔL value is a value which is obtained by subtracting an L value (a parameter value which is measured by a color-difference meter in accordance with JIS Z 8722) which is measured with respect to a single support base body from the L value which is measured in a state that the intermediate layer is formed on the support base body, and the ΔA value is a value which is obtained by subtracting reflection absorbance (a parameter value which is measured by a color-difference meter) which is measured with respect to a single support base body from the reflection absorbance which is measured in a state that the intermediate layer is formed on the support base body.

摘要翻译： 本发明提供一种电子照相感光体，其可以在高温高湿条件下降低发烟，并且可以容易地制造，以及制造这种电照相感光体的方法。 在包括支撑基体，中间层和感光体层的电子照相感光体中，以及这种电子照相感光体的制造方法，中间层含有氧化钛和粘合树脂，中间层的ΔL值满足以下关系 式（1）或中间层的ΔA值满足关系式（2），即-5.0 <=ΔL<= 0（1）和ΔA<= 0.055（2），其中ΔL值为 通过从在一个状态下测量的L值中减去相对于单个支撑基体测量的L值（由根据JIS Z 8722测量的色差计的参数值）获得的值 中间层形成在支撑基体上，DeltaA值是通过减去反射吸光度（通过色差计测量的参数值）而获得的值 r），其从在支撑基体上形成中间层的状态下测量的反射吸光度相对于单个支撑体基体测量。

公开(公告)号：US20060141377A1

公开(公告)日：2006-06-29

申请号：US11317852

申请日：2005-12-22

申请人： Daisuke Kuboshima ,  Eiichi Miyamoto ,  Kazunari Hamasaki ,  Norio Nakai ,  Yoshio Inagaki ,  Hideki Okada ,  Tetsuya Ichiguchi ,  Keiji Maruo

发明人： Daisuke Kuboshima ,  Eiichi Miyamoto ,  Kazunari Hamasaki ,  Norio Nakai ,  Yoshio Inagaki ,  Hideki Okada ,  Tetsuya Ichiguchi ,  Keiji Maruo

IPC分类号： G03G5/06

CPC分类号： G03G5/0614 ,  G03G5/047 ,  G03G5/0564 ,  G03G5/0605 ,  G03G5/0616 ,  G03G5/0666 ,  G03G5/0668

摘要： The present invention provides an electrophotographic photoreceptor comprising a photosensitive layer that contains at least a charge generating agent, a hole transport agent and a predetermined additive. The hole transport agent satisfies the following formulas (A) and (B). The electrophotographic photoreceptor prevents image defect from occurring and can meet the demand for higher speed image forming apparatuses, by reducing the adhesion of paper dust and preventing the occurrence of cracks.   ⁢ μ M 5.0 × 10 - 6 ⁢ ⁢ μ ⁢ : ⁢   ⁢ Hole ⁢   ⁢ mobility ⁢   ⁢ ( cm 2 · V - 1 · second - 1 ) ⁢   ⁢ of ⁢   ⁢ hole ⁢   ⁢ transport ⁢   ⁢ agent ⁢   ⁢ in ⁢   ⁢ the ⁢   ⁢ electric ⁢   ⁢ field ⁢   ⁢ intensity ⁢   ⁢ of ⁢   ⁢ 3 × 10 5 ⁢ ( V / cm ) ⁢ ⁢ M ⁢ : ⁢   ⁢ Molecular ⁢   ⁢ weight ⁢   ⁢ of ⁢   ⁢ hole ⁢   ⁢ transport ⁢   ⁢ agent ( B )

公开(公告)号：US07844201B2

公开(公告)日：2010-11-30

申请号：US12173831

申请日：2008-07-16

申请人： Kazunari Hamasaki ,  Yuko Iwashita

发明人： Kazunari Hamasaki ,  Yuko Iwashita

IPC分类号： G03G15/00

CPC分类号： G03G5/102 ,  G03G5/144 ,  G03G15/75 ,  G03G21/0064 ,  G03G2215/0614

摘要： There is provided a tandem color image forming apparatus and the like, which is capable of suppressing the generation of black spots during a continuous image forming process, even though a non-magnetic single-component developer is used and a cleaner-less type is adopted. The color image forming apparatus is a tandem type that includes a plurality of image carriers and a cleaner-less type that does not include a blade cleaner, wherein the resistance per square centimeter of a base body of an image carrier using for at least a black developer among the plurality of image carriers, or the resistance per square centimeter of the base body through an intermediate layer is set in a range of 1×105 to 1×108Ω or more.

摘要翻译： 提供了一种串联彩色图像形成装置等，其能够在连续成像处理期间抑制黑点的产生，即使使用非磁性单组分显影剂，并且采用无清洁剂型 。 彩色图像形成装置是串联型，其包括多个图像载体和不包括刮板清洁器的无清洁器类型，其中每平方厘米的图像载体的基体的电阻至少使用黑色 多个图像载体中的显影剂或通过中间层的基体的每平方厘米的电阻被设定在1×105〜1×108＆OHgr的范围内。 或者更多。

公开(公告)号：US07838191B2

公开(公告)日：2010-11-23

申请号：US11717274

申请日：2007-03-12

申请人： Daisuke Kuboshima ,  Kazunari Hamasaki ,  Yuko Iwashita

发明人： Daisuke Kuboshima ,  Kazunari Hamasaki ,  Yuko Iwashita

IPC分类号： G03G5/06

CPC分类号： G03G5/0696 ,  G03G5/056 ,  G03G5/0614 ,  G03G5/0618 ,  G03G5/0637

摘要： The present invention provides a monolayer type electrophotographic photoconductor which can effectively suppress the generation of an exposure memory and exhibits high sensitivity and an image forming apparatus using the monolayer type electrophotographic photoconductor. In an electrophotographic photoconductor which has a monolayer type photoconductive layer including at least a charge generating agent, a hole transfer agent, an electron transfer agent and a binding resin on a substrate, the charge generating agent contains oxo-titanyl phthalocyanine crystal, the electron transfer agent has a reduction potential thereof set to a value which falls within a range from −0.97 to −0.83 V, and the reflection absorbance (A/−) of the photoconductive layer with respect to light having a wavelength of 700 nm, a film thickness (d/m) of the photoconductive layer, and the concentration (C/weight %) of the oxo-titanyl phthalocyanine crystal of the photoconductive layer (100 weight %) satisfy a following formula (1). A·C−1·d−1>1.75×104  (1)

摘要翻译： 本发明提供了一种单层型电子照相感光体，其能够有效地抑制曝光记忆体的产生并显示出高灵敏度，以及使用单层型电子照相感光体的图像形成装置。 在具有至少包括电荷产生剂，空穴转移剂，电子转移剂和基底上的结合树脂的单层型光电导层的电子照相感光体中，电荷产生剂含有氧代 - 氧钛 - 酞菁结晶，电子转移 试剂的还原电位设定在-0.97〜-0.83V的范围内，光电导层相对于波长为700nm的光的反射吸光度（A / - ），膜厚 （d / m），光导电层的氧代 - 氧钛氧基酞菁结晶的浓度（C /重量％）满足下式（1）。 A·C-1·d-1> 1.75×104（1）

公开(公告)号：US07416825B2

公开(公告)日：2008-08-26

申请号：US11325061

申请日：2006-01-04

申请人： Daisuke Kuboshima ,  Kazunari Hamasaki ,  Norio Nakai

发明人： Daisuke Kuboshima ,  Kazunari Hamasaki ,  Norio Nakai

IPC分类号： G03G5/06

CPC分类号： G03G5/0592 ,  G03G5/0517 ,  G03G5/0564 ,  G03G5/0578 ,  G03G5/0609 ,  G03G5/0614 ,  G03G5/0651 ,  G03G5/0696 ,  G03G5/102

摘要： The present invention provides a single layer type electrophotographic photoconductor which exhibits the small number of generated black spots in a formed image and exhibits the excellent sensitivity characteristic even when the photoconductor is used for a long time or a photoconductor drum is rotated at a high speed and an image display device which includes the single layer type electrophotographic photoconductor. In the single layer type electrophotographic photoconductor which includes a photoconductive layer containing a binding resin, a hole transporting agent and an charge generating agent, the photoconductor contains a water-repellant polycarbonate resin as the binding resin, and a contact angle of pure water (measured temperature: 25° C.) with respect to the photoconductive layer is set to 100° or more.