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。

公开(公告)号：US5514508A

公开(公告)日：1996-05-07

申请号：US445055

申请日：1995-05-19

申请人： Toshiyuki Fukami ,  Hideo Nakamori ,  Hiroshi Shiomi ,  Hirofumi Kawaguchi ,  Hisakazu Uegaito ,  Nariaki Muto ,  Mikio Kakui ,  Keisuke Sumida ,  Sakae Saito ,  Maki Uchida

发明人： Toshiyuki Fukami ,  Hideo Nakamori ,  Hiroshi Shiomi ,  Hirofumi Kawaguchi ,  Hisakazu Uegaito ,  Nariaki Muto ,  Mikio Kakui ,  Keisuke Sumida ,  Sakae Saito ,  Maki Uchida

IPC分类号： G03G5/06

CPC分类号： G03G5/0679 ,  G03G5/0605 ,  G03G5/0607 ,  G03G5/0609 ,  G03G5/0612 ,  G03G5/0618 ,  G03G5/062 ,  G03G5/0681

摘要： The present invention provides an electrophotosensitive material having an improved sensitivity in comparison with a conventional one, obtained by combining a trinitrofluorenoneimine derivative represented by the formula (1): ##STR1## wherein 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 group, an alkoxy group, an aryl group which may contain a substituent, an aralkyl group which may contain a substituent, or a halogen atom! as an electron transferring material with a prescribed electric charge generating material or hole transferring material.

摘要翻译： 本发明提供了一种通过组合由式（1）表示的三硝基芴酮亚胺衍生物获得的传统的光敏感材料：其中R1，R2，R3，R4和R5是 相同或不同，表示氢原子，烷基，烷氧基，可以含有取代基的芳基，可以含有取代基的芳烷基或卤原子]作为具有规定电子的电子转移材料 电荷产生材料或空穴转移材料。

公开(公告)号：US5153088A

公开(公告)日：1992-10-06

申请号：US485320

申请日：1990-02-28

申请人： Nariaki Muto ,  Tatsuo Maeda ,  Hirotsugu Nishikawa ,  Mikio Kakui ,  Keisuke Sumida ,  Toru Nakazawa

发明人： Nariaki Muto ,  Tatsuo Maeda ,  Hirotsugu Nishikawa ,  Mikio Kakui ,  Keisuke Sumida ,  Toru Nakazawa

IPC分类号： G03G5/06

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

摘要： This invention provides an electrophotosensitive material comprising a conductive substrate and a photosensitive layer formed thereon, the photosensitive layer includes a perylene compound (I) and an X-type metal-free phtalocyanine as a charge-generating ingredient and a diamine derivative (II) as a charge-transferring ingredient in the binding resin. This electrophotosensitive material is especially superior in sensitivity and reproductivity. Formulas (I) and (II) are defined as follows: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9 l, m, n, o and p have the same meanings as defined in the text of the specification.

公开(公告)号：US5059503A

公开(公告)日：1991-10-22

申请号：US501040

申请日：1990-03-29

申请人： Nariaki Muto ,  Tatsuo Maeda ,  Toshihiko Nishiguchi ,  Mikio Kakui ,  Keisuke Sumida ,  Toru Nakazawa

发明人： Nariaki Muto ,  Tatsuo Maeda ,  Toshihiko Nishiguchi ,  Mikio Kakui ,  Keisuke Sumida ,  Toru Nakazawa

IPC分类号： G03G5/06

CPC分类号： G03G5/0629 ,  G03G5/0614 ,  G03G5/0616

摘要： The present invention provides an electrophotosensitive material containing the diamine derivative represented by the following general formula (I) and at least one selected from the group consisting of the hydrazone compound, fluorene compound and m-phenylenediamine compound. ##STR1## wherein R.sup.5 to R.sup.9, l, m, n, o and p are as defined.

公开(公告)号：US5223364A

公开(公告)日：1993-06-29

申请号：US724664

申请日：1991-07-02

申请人： Tatsuo Maeda ,  Eiichi Miyamoto ,  Nariaki Muto

发明人： Tatsuo Maeda ,  Eiichi Miyamoto ,  Nariaki Muto

IPC分类号： G03G5/06

CPC分类号： G03G5/0657

摘要： The electrophotographic photoconductor of the present invention includes a conductive substrate and a photosensitive layer containing perylene pigment as a charge generating material formed on the conductive substrate. The X-ray diffraction peak of the perylene pigment exhibits its peak when the value of 2.theta. is 14.degree.(.+-.0.3.degree.), and the half-width of the peak when the value of 2.theta. is 14.degree. (.+-.0.3.degree.) is 0.5 or more. This electrophotographic photoconductor has excellent qualities of low residual potential and stabilized quality.

公开(公告)号：US5087544A

公开(公告)日：1992-02-11

申请号：US498647

申请日：1990-03-26

申请人： Nariaki Muto ,  Mikio Kakui ,  Keisuke Sumida ,  Toru Nakazawa ,  Kazuo Matsumoto

发明人： Nariaki Muto ,  Mikio Kakui ,  Keisuke Sumida ,  Toru Nakazawa ,  Kazuo Matsumoto

IPC分类号： G03G5/06

CPC分类号： G03G5/0614

摘要： The present invention provides an electrophotosensitive material comprising a conductive substrate, and a photosensitive layer provided on the conductive substrate and containing a m-phenylenediamine compound represented by the general formula [I]: ##STR1## (wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R are the same as defined before). The present electrophotosensitive material has high sensitivity and is easy to be manufactured.

公开(公告)号：US5851712A

公开(公告)日：1998-12-22

申请号：US457393

申请日：1995-06-01

申请人： Nariaki Muto ,  Keisuke Sumida ,  Hiroaki Iwasaki ,  Tsuneo Oki ,  Eiichi Miyamoto ,  Yasuyuki Hanatani ,  Hiroaki Sakai

发明人： Nariaki Muto ,  Keisuke Sumida ,  Hiroaki Iwasaki ,  Tsuneo Oki ,  Eiichi Miyamoto ,  Yasuyuki Hanatani ,  Hiroaki Sakai

IPC分类号： G03G5/05 ,  G03G5/06

CPC分类号： G03G5/0609 ,  G03G5/0517 ,  G03G5/0521 ,  G03G5/0564 ,  G03G5/0578 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/062 ,  G03G5/0629 ,  G03G5/0631 ,  G03G5/0657 ,  G03G5/0681 ,  G03G5/0685 ,  G03G5/0688

摘要： An electrophotosensitive material of the present invention is formed by providing a photosensitive layer containing a bis-azo pigment expressed in formula (1): ##STR1## wherein A.sup.1, A.sup.2, R.sup.1 and n are as defined, as a charge generating material, and a diamine compound expressed in formula (2): ##STR2## wherein R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 p and q k, l, m and o are as defined, as a charge-trasferring material, on a conductive substrate. As a charge generating material, a perylene pigment, anthanthrone pigment, X-type metal-free phthalocyanine pigment, imidazoleperylene pigment or perylene bis-azo pigment are preferable used together with the bis-azo pigment. Thus, photosensitive material is excellent in sensitivity and durability.

公开(公告)号：US5521044A

公开(公告)日：1996-05-28

申请号：US6317

申请日：1993-01-22

申请人： Nariaki Muto ,  Keisuke Sumida ,  Hiroaki Iwasaki ,  Tsuneo Oki ,  Eiichi Miyamoto ,  Yasuyuki Hanatani ,  Hiroaki Sakai

发明人： Nariaki Muto ,  Keisuke Sumida ,  Hiroaki Iwasaki ,  Tsuneo Oki ,  Eiichi Miyamoto ,  Yasuyuki Hanatani ,  Hiroaki Sakai

IPC分类号： G03G5/05 ,  G03G5/06 ,  G03G5/09

CPC分类号： G03G5/0609 ,  G03G5/0517 ,  G03G5/0521 ,  G03G5/0564 ,  G03G5/0578 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/062 ,  G03G5/0629 ,  G03G5/0631 ,  G03G5/0657 ,  G03G5/0681 ,  G03G5/0685 ,  G03G5/0688

摘要： An electrophotosensitive material of the present invention is formed by providing a photosensitive layer containing a bis-azo pigment expressed in formula (1): ##STR1## wherein A.sup.1, A.sup.2, R.sup.1 and n are as defined, as a charge generating material, and a diamine compound expressed in formula (2): ##STR2## wherein R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 p and q k, l, m and o are as defined, as a charge-trasferring material, on a conductive substrate. As a charge generating material, a perylene pigment, anthanthrone pigment, X-type metal-free phthalocyanine pigment, imidazoleperylene pigment or perylene bis-azo pigment are preferable used together with the bis-azo pigment. Thus, photosensitive material is excellent in sensitivity and durability.

摘要翻译： 通过提供含有式（1）表示的双偶氮颜料的光敏层，其中A1，A2，R1和n如上所定义，作为电荷产生材料，形成本发明的光敏材料： ，和式（2）中表示的二胺化合物：p和qk，l，m和o如导电性基板上的电荷诱导材料所定义。 作为电荷产生材料，优选与双偶氮颜料一起使用苝颜料，蒽酮颜料，X型无金属酞菁颜料，咪唑啉颜料或苝双偶氮颜料。 因此，感光材料的灵敏度和耐久性优异。