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11. 发明授权

US07555241B2 Image forming device using a single-layer-type electrophotographic photoconductor and image forming method using the same 有权
标题翻译：使用单层电子照相感光体的图像形成装置及使用其的图像形成方法
公开(公告)号：US07555241B2
公开(公告)日：2009-06-30
申请号：US11503812
申请日：2006-08-14
申请人： Makoto Shishido , Shiho Okawa , Eiichi Miyamoto , Yasufumi Mizuta
发明人： Makoto Shishido , Shiho Okawa , Eiichi Miyamoto , Yasufumi Mizuta
IPC分类号： G03G15/00 , G03G21/00
CPC分类号： G03G21/06
摘要： An image forming apparatus which can exhibit an excellent charge eliminating effect by erasing a transfer memory using a precharging device with optimized conditions even when a positively-charged single-layer-type electrophotographic photoconductor is used as a photoconductor. In the image forming apparatus which sequentially arranges a charging device, a developing device, a transfer device, and a charge eliminating device around a single-layer-type electrophotographic photoconductor, the charging device charges a surface of the single-layer-type electrophotographic photoconductor with a positive polarity, a precharging device having a conductive member is arranged on an upstream side of the charge eliminating device, the conductive member is brought into contact with the electrophotographic photoconductor, and a current density Ib (μA/m2) of the injected current into the photoconductor from the conductive member is set to a value of 700 (μA/m2) or more.
摘要翻译：即使使用带正电的单层型电子照相感光体作为光电导体，也能够利用优化条件的预充电装置擦除转印存储器，能够表现出优异的电荷消除效果的图像形成装置。在单层型电子照相光电导体周围依次配置充电装置，显影装置，转印装置和电荷消除装置的图像形成装置中，充电装置对单层型电子照相感光体具有正极性，具有导电部件的预充电装置设置在电荷消除装置的上游侧，导电部件与电子照相感光体接触，并且注入电流的电流密度Ib（μA/ m 2）从导电部件入射到感光体中的值设定为700（μmA/ m 2）以上。

12. 发明授权

US5424157A Electrophotosensitive material containing disazo compound as charge-generating agent 失效
标题翻译：含有双偶氮化合物作为电荷发生剂的电子感光材料
公开(公告)号：US5424157A
公开(公告)日：1995-06-13
申请号：US158783
申请日：1993-12-01
申请人： Eiichi Miyamoto , Yasufumi Mizuta
发明人： Eiichi Miyamoto , Yasufumi Mizuta
IPC分类号： G03G5/06
CPC分类号： G03G5/0683 , G03G5/0679 , G03G5/0681
摘要： An electrophotosensitive material containing, as a charge-generating agent, a compound represented by the following general formula (1), ##STR1## wherein Cp is an azo coupling component, Y is a divalent organic group containing at least one aromatic ring or heterocyclic ring, R1 and R8 are alkyl groups or halogen atoms, respectively, and R2 and R4 are alkyl groups, halogen atoms or hydrogen atoms, respectively. The charge-generating agent used here remains chemically stable and exhibits excellent recurring property and charge-forming efficiency.
摘要翻译：含有作为电荷产生剂的由以下通式（1）表示的化合物的光敏材料：其中Cp是偶氮偶合组分，Y是含有至少一个芳族环或杂环的二价有机基团 R 1和R 8分别是烷基或卤原子，R 2和R 4分别是烷基，卤素原子或氢原子。这里使用的电荷产生剂保持化学稳定，显示出优异的重复性和电荷形成效率。

13. 发明申请

US20060141377A1 Electrophotographic photoreceptor and image forming apparatus 有权
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 )

14. 发明授权

US5750308A Electrophotographic developing method using developing bias voltage based on light decay characteristics of photosensitive material 失效
标题翻译：使用基于感光材料的光衰减特性的显影偏压的电子照相显影方法
公开(公告)号：US5750308A
公开(公告)日：1998-05-12
申请号：US754624
申请日：1996-11-21
申请人： Mitsuji Tsujita , Nariaki Tanaka , Takashi Terada , Takuji Terada , Ichiro Yamazato , Eiichi Miyamoto
发明人： Mitsuji Tsujita , Nariaki Tanaka , Takashi Terada , Takuji Terada , Ichiro Yamazato , Eiichi Miyamoto
IPC分类号： G03G13/22 , G03G15/06 , G03G13/06
CPC分类号： G03G15/065 , G03G13/22
摘要： An electrophotographic method in which an electrostatic latent image on a single-layer organic photosensitive material is developed while applying a developing bias voltage of the same polarity as the polarity of the charge of the photosensitive material. The developing bias voltage is set to be higher than a potential that corresponds to a point where a curve approximating the zone of a large amount of exposure to light and a curve approximating the zone of a small amount of exposure to light in a light decay characteristics curve intersect each other.
摘要翻译：一种电子照相方法，其中在施加与感光材料的电荷的极性相同极性的显影偏压的同时显影单层有机感光材料上的静电潜像。显影偏压被设定为高于对应于近似于大量曝光区域的曲线和接近光衰减特性中少量曝光区域的曲线的点的电位曲线相交。

15. 发明授权

US08679710B2 Electrophotographic photoreceptor and image forming apparatus 有权
标题翻译：电子照相感光体和成像装置
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）

16. 发明授权

US06573017B2 Single-layer type electrophotosensitive material 有权
公开(公告)号：US06573017B2
公开(公告)日：2003-06-03
申请号：US10012306
申请日：2001-12-12
申请人： Jun Azuma , Yukimasa Watanabe , Hisakazu Honma , Ayako Yashima , Maki Uchida , Eiichi Miyamoto
发明人： Jun Azuma , Yukimasa Watanabe , Hisakazu Honma , Ayako Yashima , Maki Uchida , Eiichi Miyamoto
IPC分类号： G03G500
CPC分类号： G03G5/04 , G03G5/05 , G03G5/0609 , G03G5/0614 , G03G5/0651 , G03G5/0666
摘要： Disclosed is a single-layer type electrophotosensitive material comprising a conductive substrate and a photosensitive layer made of a binder resin containing at least an electric charge generating material and an electric charge transferring material, which is formed on the conductive substrate, wherein an oxygen transmission rate of the binder resin is not more than 35 cc·mm/m2·day·atom, wherein it is preferred that a mobility at an electric field strength of 5×105 V/cm of the hole transferring material is not less than 5×10−6 cm2/V/sec and a solid content of the electric charge transferring material is not less than 30% by weight and not more than 50% by weight based on the whole solid content; said electrophotosensitive material has good ozone resistance and does not cause defects such as image black belt due to lowering of the charge capability, an ozone of which is 5.0 ppm at most, and is also superior in sensitivity and wear resistance.

17. 发明授权

US5767315A Naphthylenediamine derivative 失效
标题翻译：萘二胺衍生物
公开(公告)号：US5767315A
公开(公告)日：1998-06-16
申请号：US539620
申请日：1995-10-05
申请人： Eiichi Miyamoto , Mikio Kakui , Hideo Nakamori , Yukikatsu Imanaka , Tadashi Sakuma , Maki Uchida
发明人： Eiichi Miyamoto , Mikio Kakui , Hideo Nakamori , Yukikatsu Imanaka , Tadashi Sakuma , Maki Uchida
IPC分类号： C07C211/58 , C07C211/59 , C07C217/84 , C07C217/92 , C07C217/94 , C07C255/58 , G03G5/06
CPC分类号： G03G5/0618 , C07C211/58 , C07C217/84 , G03G5/0609 , G03G5/0614 , G03G5/0651
摘要： The present invention provides a novel naphthylenediamine derivative which is superior in electric charge transferring capability, compatibility with binding resin and stability. The above naphthylenediamine derivative is represented by the following general formula (1) ##STR1## wherein R.sup.1 to R.sup.4, R.sup.5a to R.sup.5f and a to d are as defined.
摘要翻译：本发明提供了一种新颖的萘二胺衍生物，它具有优异的电荷转移能力，与粘结树脂的相容性和稳定性。上述萘二胺衍生物由以下通式（1）表示：其中R1至R4，R5a至R5f和a至d如上所定义。

18. 发明授权

US5213923A Photosensitive material for electrophotography comprising a charge transport layer comprising an organopolysilane and diphenoquinone 失效
标题翻译：用于包含包含有机聚硅氧烷和二氢醌的电荷运输层的电泳图像的感光材料
公开(公告)号：US5213923A
公开(公告)日：1993-05-25
申请号：US605272
申请日：1990-10-30
申请人： Masaaki Yokoyama , Eiichi Miyamoto , Yasuhiro Yamaguchi
发明人： Masaaki Yokoyama , Eiichi Miyamoto , Yasuhiro Yamaguchi
IPC分类号： G03G5/06 , G03G5/07
CPC分类号： G03G5/062 , G03G5/0609 , G03G5/078
摘要： Disclosed is a photosensitive material for the electrophotography, comprising as the charge-transporting substance a composition comprising an organic polysilane and a member selected from the group consisting of an electron-accepting substance, a diphenoquinone derivative, a low-molecular-weight hole-transporting substance, a high-molecular-weight polycyclic hindered phenol and an n-type charge-generating substance. Even if this photosensitive material is subjected to charging and light exposure repeatedly or irradiated with ultraviolet rays, quantities of charges of the surface voltage and residual voltage are very small, and the photosensitive material has an excellent resistance to the repetition of charging and light exposure operations and an excellent light resistance.

19. 发明授权

US5106536A .alpha.-type titanyl phthalocyanine composition, method for production thereof, and electrophotographic sensitive material using same 失效
标题翻译：（ALPHA）-TYPE TITANYL PHTHALOCYANINE COMPOSITION，其制备方法和使用其的电子感光敏感材料
公开(公告)号：US5106536A
公开(公告)日：1992-04-21
申请号：US574851
申请日：1990-08-30
申请人： Eiichi Miyamoto , Nariaki Mutou , Tooru Nakazawa , Tatsuo Maeda
发明人： Eiichi Miyamoto , Nariaki Mutou , Tooru Nakazawa , Tatsuo Maeda
IPC分类号： C09B47/04 , C09B67/16 , C09B67/22 , C09B67/50 , C09B67/54 , G03G5/06
CPC分类号： G03G5/0696 , C09B47/045 , C09B67/0019 , C09B67/0026 , C09B67/0035 , C09B67/0096
摘要： A stable .alpha.-type titanyl phthalocyanine composition including an .alpha.-type titanyl phthalocyanine and a metal-free phthalocyanine is disclosed having a wide range of absorption wavelengths and high in spectral sensitivity. The method for making the phthalocyanine composition is carried out by pigmenting a concentrated sulfuric acid solution containing at least titanyl phthalocyanine by an acid paste process. The concentrated sulfuric acid solution is poured into water to produce an .alpha.-type titanyl phthalocyanine composition which is stable to withstand the impact of aging. Also disclosed is an electrophotographic sensitive material which includes a sensitive layer having the .alpha.-type titanyl phthalocyanine composition superposed on an electroconductive substrate. This electrophotographic sensitive material excels in its charging property and its dark attenuation property and exhibits high sensitivity and low residual potential. The electrophotographic sensitive material having a sensitive layer comprising the .alpha.-type titanyl phthalocyanine composition and an electric charge transferring material can also be superposed on an electroconductive substrate. This electrophotographic photosensitive material exhibits an oxidation potential in the ranage of 0.45 to 0.65 eV, enjoys high sensitivity, and shows low residual potential.

20. 发明授权

US07057034B2 Titanyl phthalocyanine crystal and production method of the same, and electrophotosensitive material 有权
标题翻译：钛菁酞菁晶体及其制备方法相同，并具有电光敏材料
公开(公告)号：US07057034B2
公开(公告)日：2006-06-06
申请号：US10648719
申请日：2003-08-27
申请人： Kazunari Hamasaki , Daisuke Kuboshima , Hisakazu Honma , Jun Azuma , Eiichi Miyamoto
发明人： Kazunari Hamasaki , Daisuke Kuboshima , Hisakazu Honma , Jun Azuma , Eiichi Miyamoto
IPC分类号： C07D487/22
CPC分类号： C09B47/045 , C09B67/0026
摘要： The present invention relates to a novel titanyl phthalocyanine crystal which can prepare a coating solution having excellent storage stability because it satisfies both of the following two characteristics (a) and (b), a method of producing the same, an electrophotosensitive material using the above crystal as an electric charge generating material. (a) The crystal has a maximum peak at a Bragg angle 2θ±0.2°=27.2° and has no peak at 7.4° in a CuKα characteristic X-ray diffraction spectrum. (b) The crystal does not have a peak of a change in temperature within a range from 50 to 400° C. except for a peak associated with evaporation of adsorbed water in differential scanning calorimetry.
摘要翻译：本发明涉及一种新的钛酞菁结晶，其可以制备具有优异的储存稳定性的涂布溶液，因为它满足以下两个特征（a）和（b），其制备方法，使用上述的电光敏材料晶体作为电荷产生材料。（a）晶体在布拉格角2θ±0.2°= 27.2°处具有最大峰值，并且在CuKalpha特征X射线衍射光谱中在7.4°没有峰值。（b）在差示扫描量热法中，与吸附水的蒸发相关的峰除外，晶体的温度变化的峰值在50〜400℃的范围内。

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