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1. 发明授权

US5550290A Benzidine derivative and electrophotosensitive material using the same 失效
标题翻译：联苯胺衍生物和使用它们的电光敏材料
公开(公告)号：US5550290A
公开(公告)日：1996-08-27
申请号：US314375
申请日：1994-09-28
申请人： Yasufumi Mizuta , Masashi Tanaka , Nariaki Muto , Toshiyuki Fukami , Hideo Nakamori , Mikio Kakui , Sakae Saito , Hiroshi Shiomi , Keisuke Sumida , Maki Uchida
发明人： Yasufumi Mizuta , Masashi Tanaka , Nariaki Muto , Toshiyuki Fukami , Hideo Nakamori , Mikio Kakui , Sakae Saito , Hiroshi Shiomi , Keisuke Sumida , Maki Uchida
IPC分类号： C07C211/54 , G03G5/06 , C07C217/92
CPC分类号： C07C211/54 , G03G5/0614
摘要： The present invention relates to a benzidine derivative represented by the general formula (1): ##STR1## wherein R.sup.1 to R.sup.6, m and n are as defined in the present specification. The benzidine derivative improves durability and heat resistance of a membrane containing the same while maintaining high hole transferring capability. Therefore, an electrophotosensitive material, which comprises a photosensitive layer containing the benzidine derivative, has high sensitivity and is superior in durability and heat resistance.
摘要翻译：本发明涉及由通式（1）表示的联苯胺衍生物：其中R1至R6，m和n如本说明书中所定义。联苯胺衍生物在保持高空穴转移能力的同时提高了含有该组合物的膜的耐久性和耐热性。因此，包含含有联苯胺衍生物的感光层的电光敏材料具有高灵敏度，耐久性和耐热性优异。

2. 发明授权

US5994012A Naphthoquinone derivative and electrophotosensitive material using same 失效
标题翻译：萘醌衍生物和使用它们的电光敏材料
公开(公告)号：US5994012A
公开(公告)日：1999-11-30
申请号：US937448
申请日：1997-09-25
申请人： Yukimasa Watanabe , Sakae Saito , Hirofumi Kawaguchi , Akiyoshi Urano , Fumio Sugai , Atsushi Fujii , Yasufumi Mizuta , Toshiyuki Fukami , Ichiro Yamazato , Yuji Tanaka , Eiichi Miyamoto , Hideo Nakamori , Mitsuo Ihara
发明人： Yukimasa Watanabe , Sakae Saito , Hirofumi Kawaguchi , Akiyoshi Urano , Fumio Sugai , Atsushi Fujii , Yasufumi Mizuta , Toshiyuki Fukami , Ichiro Yamazato , Yuji Tanaka , Eiichi Miyamoto , Hideo Nakamori , Mitsuo Ihara
IPC分类号： C07C45/67 , C07C45/68 , C07C46/06 , C07C50/38 , C07C69/757 , G03G5/05 , G03G5/06 , G03G5/047 , G03G5/09
CPC分类号： G03G5/0614 , C07C45/67 , C07C45/68 , C07C46/06 , C07C50/38 , G03G5/0517 , G03G5/0609
摘要： The present invention provides a naphthoquinone derivative represented by the general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are as defined in the specification. An electrophotosensitive material containing this naphthoquinone derivative as an electron transferring material has high sensitivity.
摘要翻译：本发明提供由通式（I）表示的萘醌衍生物：其中R1和R2如说明书中所定义。含有该萘醌衍生物作为电子转移材料的光敏材料具有高灵敏度。

3. 发明授权

US5863688A Naphthoquinone derivative 失效
标题翻译：萘醌衍生物
公开(公告)号：US5863688A
公开(公告)日：1999-01-26
申请号：US709040
申请日：1996-09-06
申请人： Yukimasa Watanabe , Sakae Saito , Hirofumi Kawaguchi , Akiyoshi Urano , Fumio Sugai , Atsushi Fujii , Yasufumi Mizuta , Toshiyuki Fukami , Ichiro Yamazato , Yuji Tanaka , Eiichi Miyamoto , Hideo Nakamori , Mitsuo Ihara
发明人： Yukimasa Watanabe , Sakae Saito , Hirofumi Kawaguchi , Akiyoshi Urano , Fumio Sugai , Atsushi Fujii , Yasufumi Mizuta , Toshiyuki Fukami , Ichiro Yamazato , Yuji Tanaka , Eiichi Miyamoto , Hideo Nakamori , Mitsuo Ihara
IPC分类号： C07C45/67 , C07C45/68 , C07C46/06 , C07C50/38 , C07C69/757 , G03G5/05 , G03G5/06 , G03G5/00
CPC分类号： G03G5/0614 , C07C45/67 , C07C45/68 , C07C46/06 , C07C50/38 , G03G5/0517 , G03G5/0609
摘要： The present invention provides a naphthoquinone derivative represented by the general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are as defined in the specification. An electrophotosensitive material containing this naphthoquinone derivative as an electron transferring material has high sensitivity.
摘要翻译：本发明提供由通式（I）表示的萘醌衍生物：在本说明书中。含有该萘醌衍生物作为电子转移材料的光敏材料具有高灵敏度。

4. 发明授权

US5773613A Tryptoanthrinimine derivative and electrophotosensitive material using the same 失效
标题翻译：色氨酸亚胺衍生物和使用其的电光敏材料
公开(公告)号：US5773613A
公开(公告)日：1998-06-30
申请号：US563545
申请日：1995-11-28
申请人： Hirofumi Kawaguchi , Nobuko Akiba , Yukimasa Watanabe , Hiroaki Iwasaki , Yasuyuki Hanatani , Yasufumi Mizuta , Fumio Sugai , Sakae Saito , Syunichi Matsumoto , Toshiyuki Fukami , Ichiro Yamazato , Hisakazu Uegaito , Yuji Tanaka
发明人： Hirofumi Kawaguchi , Nobuko Akiba , Yukimasa Watanabe , Hiroaki Iwasaki , Yasuyuki Hanatani , Yasufumi Mizuta , Fumio Sugai , Sakae Saito , Syunichi Matsumoto , Toshiyuki Fukami , Ichiro Yamazato , Hisakazu Uegaito , Yuji Tanaka
IPC分类号： G03G5/06 , C07D487/02
CPC分类号： G03G5/0642 , G03G5/0614
摘要： The present invention provides a tryptoanthrinimine derivative represented by the general formula (Y): ##STR1## wherein R.sup.A to R.sup.M are as defined. Such a derivative of the general formula (Y) is superior in electron transferring capability. Accordingly, an electrophotosensitive material comprising a photosensitive layer containing this derivative (Y) is superior in sensitivity.
摘要翻译：本发明提供由通式（Y）表示的色氨酰亚胺衍生物：其中RA与RM的定义相同。这种通式（Y）的衍生物在电子转移能力上是优异的。因此，包含含有该衍生物（Y）的感光层的电光敏材料的灵敏度优异。

5. 发明授权

US5705694A Trinitrofluoroenonimine derivative and electrophotosensitive material using the same 失效
标题翻译：三硝基氟代亚胺衍生物和使用其的电光敏材料
公开(公告)号：US5705694A
公开(公告)日：1998-01-06
申请号：US560493
申请日：1995-11-17
申请人： Hirofumi Kawaguchi , Yasufumi Mizuta , Syunichi Matsumoto , Nobuko Akiba , Toshiyuki Fukami , Ichiro Yamazato , Hisakazu Uegaito , Yuji Tanaka
发明人： Hirofumi Kawaguchi , Yasufumi Mizuta , Syunichi Matsumoto , Nobuko Akiba , Toshiyuki Fukami , Ichiro Yamazato , Hisakazu Uegaito , Yuji Tanaka
IPC分类号： C07C251/20 , G03G5/06 , C07C251/24 , G03G15/00 , G03G15/02
CPC分类号： G03G5/0618 , C07C251/20 , C07C2103/18
摘要： The present invention provides a novel trinitrofluorenonimine derivative represented by the general formula (1): ##STR1## wherein R.sup.0 is an alkyl group; and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same or different and indicate a hydrogen atom, an alkyl, an alkoxy, an aryl, an aralkyl, a halogen atom or an alkyl halide. This derivative is superior in electron transferring capability and compatibility with binding resin. Accordingly, an electrophotosensitive material comprising this derivative as an electron transferring material is superior in sensitivity.
摘要翻译：本发明提供由通式（1）表示的新型三硝基芴酮亚胺衍生物：其中R 0为烷基; R 1，R 2，R 3，R 4和R 5相同或不同，表示氢原子，烷基，烷氧基，芳基，芳烷基，卤原子或烷基卤。该衍生物具有优异的电子转移能力和与粘合树脂的相容性。因此，包含该衍生物作为电子转移材料的电光敏材料的灵敏度优异。

6. 发明授权

US5616441A Tryptoanthorine derivative contained in electrophotosensitive material 失效
标题翻译：含有光敏材料的色氨酸衍生物
公开(公告)号：US5616441A
公开(公告)日：1997-04-01
申请号：US527776
申请日：1995-09-13
申请人： Hirofumi Kawaguchi , Yasufumi Mizuta , Syunichi Matsumoto , Nobuko Akiba , Toshiyuki Fukami , Ichiro Yamazato , Hisakazu Uegaito , Yuji Tanaka
发明人： Hirofumi Kawaguchi , Yasufumi Mizuta , Syunichi Matsumoto , Nobuko Akiba , Toshiyuki Fukami , Ichiro Yamazato , Hisakazu Uegaito , Yuji Tanaka
IPC分类号： C07D487/04 , G03G5/06
CPC分类号： C07D487/04 , G03G5/0614 , G03G5/0651
摘要： According to the present invention, there is provided a novel tryptoanthorine derivative represented by the formula: ##STR1## wherein R.sup.1a, R.sup.1b, R.sup.1c, R.sup.1d, R.sup.2a, R.sup.2b, R.sup.2c, and R.sup.2d are the same or different and indicate a hydrogen atom, an alkyl group or a halogenated alkyl group; provided that R.sup.1a, R.sup.1b, R.sub.1c and R.sup.1d do not indicate a hydrogen atom, simultaneously. Tryptoanthorine and a derivative thereof are suitably used for an electrophotosensitive material because of their excellent electron transferring capability.
摘要翻译：根据本发明，提供了一种由下式表示的新颖的色氨酸衍生物：其中R1a，R1b，R1c，R1d，R2a，R2b，R2c和R2d相同或不同，表示氢原子，烷基或卤代烷基; 条件是R1a，R1b，R1c和R1d同时不表示氢原子。由于其优异的电子传递能力，所以色素和其衍生物适用于电光敏材料。

7. 发明申请

US20070077089A1 Image forming apparatus and image forming method 有权
标题翻译：图像形成装置及图像形成方法
公开(公告)号：US20070077089A1
公开(公告)日：2007-04-05
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： G03G21/00
CPC分类号： G03G21/06
摘要： The present invention provides an image forming apparatus which can exhibit an excellent charge eliminating effect by erasing a transfer memory using a precharging means 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 means, a developing means, a transfer means, and a charge eliminating means around a single-layer-type electrophotographic photoconductor, the charging means charges a surface of the single-layer-type electrophotographic photoconductor with a positive polarity, a precharging means having a conductive member is arranged on an upstream side of the charge eliminating means, 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：本发明提供一种图像形成装置，即使使用带正电的单层电子照相感光体作为光电导体，也可以通过利用具有优化条件的预充电装置擦除转印存储器而具有优异的电荷消除效果。在单层型电子照相感光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，电流密度I B（从导电部件向光电导体注入的电流的μA/ m 2 2）设定为700（μA/ m 2以上）以上的值。

8. 发明授权

US6127076A Naphthalenetetracarboxylic acid diimide derivatives and photosensitive material for electrophotography 有权
标题翻译：萘四甲酸二酰亚胺衍生物和电子照相用感光材料
公开(公告)号：US6127076A
公开(公告)日：2000-10-03
申请号：US320561
申请日：1999-05-27
申请人： Kou Ishigami , Fumio Sugai , Yasufumi Mizuta
发明人： Kou Ishigami , Fumio Sugai , Yasufumi Mizuta
IPC分类号： G03G5/06 , C07D471/04 , C07D471/06 , G03G5/047 , G03G5/09
CPC分类号： C07D471/06
摘要： Naphthalenetetracarboxylic acid diimide derivatives represented by the following general formula, ##STR1## wherein R is a hydrogen atom, an alkyl group, an alkoxyl group or a halogen atom, R1 and R2 are different from each other and may be a substituted or unsubstituted alkyl group, alkoxyl group or an aryl group, respectively, and R3 is a hydrogen atom, a substituted or unsubstituted alkyl group, an alkoxyl group or an aryl group.The derivatives exhibit excellent solubility in an organic solvent, excellent compatibility with a resin binder and excellent photosensitivity, and are very useful as an electron transporting agent for the electrophotosensitive material.
摘要翻译：由以下通式表示的萘四甲酸二酰亚胺衍生物，其中R是氢原子，烷基，烷氧基或卤素原子，R1和R2彼此不同，可以是取代或未取代的烷基，烷氧基或芳基，R 3为氢原子，取代或未取代的烷基，烷氧基或芳基。该衍生物在有机溶剂中表现出优异的溶解性，与树脂粘合剂的相容性优异，并且具有优异的光敏性，并且作为电光敏材料的电子传输剂是非常有用的。

9. 发明授权

US5185228A Electrophotosensitive material containing p-benzylbiphenyl 失效
标题翻译：包含对苯二酚的电致感材料
公开(公告)号：US5185228A
公开(公告)日：1993-02-09
申请号：US567057
申请日：1990-08-14
申请人： Tatsuo Maeda , Masato Katsukawa , Hiroaki Iwasaki , Yasufumi Mizuta
发明人： Tatsuo Maeda , Masato Katsukawa , Hiroaki Iwasaki , Yasufumi Mizuta
IPC分类号： G03G5/06
CPC分类号： G03G5/0605
摘要： The present invention provides an electrophotosensitive material having a layer containing a binding resin, a charge transferring material and a biphenyl derivative of the following formula [I], or a compound of which energy level in a triplet state is not more than the energy level in an excited state of the charge transferring material. The present invention prevents the charge transferring material from being decreased in charge amount and sensitivity due to light irradiation: ##STR1## wherein R.sup.1 is an aryl or aralkyl group.

10. 发明授权

US06174638B1 Naphthalenetetracarboxylic acid diimide derivatives and photosensitive materials for electrophotography 有权
标题翻译：萘四甲酸二酰亚胺衍生物和电子照相用感光材料
公开(公告)号：US06174638B1
公开(公告)日：2001-01-16
申请号：US09320562
申请日：1999-05-27
申请人： Kou Ishigami , Fumio Sugai , Yasufumi Mizuta
发明人： Kou Ishigami , Fumio Sugai , Yasufumi Mizuta
IPC分类号： G03G506
CPC分类号： G03G5/0651
摘要： Naphthalenetetracarboxylic acid diimide derivatives represented by the general formula (1), wherein m and n are integers inclusive of 0 but not larger than 6, and are different from each other, R1 is a hydrogen atom, an alkyl group, an alkoxyl group or a halogen atom, either one of R2 or R3 is a substituted or unsubstituted aryl group, and the other one is an alkyl group, an alkoxyl group or an amino group, and wherein when R2 or R3 is an alkoxyl group or an amino group, the number n or m of methylene chains to which this group is bonded is not zero. The derivatives exhibit excellent solubility in an organic solvent, excellent compatibility with a resin binder and excellent photosensitivity, and are very useful as an electron-transporting agent for the photosensitive material for electrophotography.
摘要翻译：由通式（1）表示的萘四甲酸二酰亚胺衍生物，其中，m和n为0以上且6以下的整数，并且彼此不同，R 1为氢原子，烷基，烷氧基或卤素原子，R2或R3中的任一个为取代或未取代的芳基，另一个为烷基，烷氧基或氨基，并且其中当R 2或R 3为烷氧基或氨基时，该基团的亚甲基链数n或m不为零。该衍生物在有机溶剂中表现出优异的溶解性，与树脂粘合剂的相容性优异，并且具有优异的光敏性，并且作为光敏电子传输剂是非常有用的电子照相用材料

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