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    Electrophotographic photoreceptor having a dip coated charge transport layer
    1.
    发明授权
    Electrophotographic photoreceptor having a dip coated charge transport layer 失效
    具有浸涂电荷传输层的电子照相感光体

    公开(公告)号：US5120627A

    公开(公告)日：1992-06-09

    申请号：US559277

    申请日：1990-07-30

    Applicant: Mamoru Nozomi ,  Shigenori Otsuka ,  Hiromi Horiuchi

    Inventor： Mamoru Nozomi ,  Shigenori Otsuka ,  Hiromi Horiuchi

    IPC: C08G63/19 ,  C08G63/199 ,  C08G63/682 ,  C08G64/00 ,  C08G64/06 ,  C09D167/02 ,  G03G5/05

    CPC classification number: G03G5/0525 ,  G03G5/056 ,  G03G5/0564 ,  G03G5/0596

    Abstract: Disclosed herein is an electrophotographic photoreceptor having on a conductive base at least one charge generation layer and at least one charge transport layer, said charge transport layer having the thickness of 27 .mu.m or above and being formed with a coating solution containing a condensation polymer of the viscosity-average molecular weight of 15,000 to 25,000 as a binder resin according to the dip coating method. The electrophotographic photoreceptor according to the present invention has the excellent durability because the resultant charge transport layer has the increased and uniform thickness without changing the electric properties, especially the charged potential.

    Abstract translation: 本文公开了一种电子照相感光体，其在导电性基底上具有至少一个电荷产生层和至少一个电荷输送层，所述电荷输送层的厚度为27μm以上，并且形成有含有缩合聚合物 根据浸涂法的粘均分子量为15,000〜25,000作为粘合剂树脂。 根据本发明的电子照相感光体具有优异的耐久性，因为所得的电荷输送层具有均匀且均匀的厚度，而不改变电特性，特别是带电电位。

    Carrier for developing electrostatic latent images, developer, and electrophotographic developing process
    3.
    发明授权
    Carrier for developing electrostatic latent images, developer, and electrophotographic developing process 失效
    用于显影静电潜像，显影剂和电子照相显影方法的载体

    公开(公告)号：US5360691A

    公开(公告)日：1994-11-01

    申请号：US879292

    申请日：1992-05-07

    Applicant: Katsuo Koizumi ,  Shigenori Otsuka ,  Syuuichi Maeda ,  Hiromi Horiuchi ,  Hirofumi Oda ,  Toshiyuki Sueyoshi

    Inventor： Katsuo Koizumi ,  Shigenori Otsuka ,  Syuuichi Maeda ,  Hiromi Horiuchi ,  Hirofumi Oda ,  Toshiyuki Sueyoshi

    IPC: G03G9/113 ,  G03G9/08

    CPC classification number: G03G9/1133 ,  Y10S430/105

    Abstract: A carrier for developing electrostatic latent images is disclosed, which comprises a core material at least a part of which is coated with a resin containing a copolymer comprised of vinylidene chloride and at least one monomer having an unsaturated double bond and being copolymerizable with vinylidene chloride, wherein the copolymer is comprised of (a) from 70 to 30 mol % of vinylidene chloride, (b) from 20 to 60 mol % of acrylonitrile and/or an acrylonitrile derivative, and (c) from 0 to 40 mol % of a monomer having an unsaturated double bond and being copolymerizable with components (a) and (b). An electrophotographic developer containing the carrier and an electrophotographic developing process using the developer are also disclosed.

    Abstract translation: 公开了一种用于显影静电潜像的载体，其包括芯材，其至少一部分涂覆有含有由偏二氯乙烯和至少一种具有不饱和双键并且可与偏二氯乙烯共聚的单体的共聚物的树脂， 其中所述共聚物包含（a）70-30mol％偏二氯乙烯，（b）20-60mol％丙烯腈和/或丙烯腈衍生物，和（c）0-40mol％单体 具有不饱和双键并可与组分（a）和（b）共聚。 还公开了含有载体的电子照相显影剂和使用该显影剂的电子照相显影方法。

    Electrophotographic photoreceptor
    6.
    发明授权
    Electrophotographic photoreceptor 失效
    电子照相感光体

    公开(公告)号：US5173384A

    公开(公告)日：1992-12-22

    申请号：US865706

    申请日：1992-04-08

    Applicant: Shigenori Otsuka

    Inventor： Shigenori Otsuka

    IPC: G03G5/047 ,  G03G5/06

    CPC classification number: G03G5/0681 ,  G03G5/047 ,  G03G5/06 ,  G03G5/0618 ,  G03G5/0683

    Abstract: According to the present invention, there is provided a layered-type organic electrophotographic photoreceptor in which a charge generating layer containing organic charge generating material and a charge transporting layer containing organic charge transporting material are constructed on an electroconductive support, characterized in that a value n is not greater than 0.5 in the following equation (1):.eta.=.eta..sub.o E.sup.n (1)where .eta. represents a quantum yield as the whole photoreceptor, E represents an electric field and .eta..sub.o represents a constant, and that a film thickness of said charge transporting layer is not less than 30 .mu.m.

    Abstract translation: 根据本发明，提供了一种分层型有机电子照相感光体，其中含有有机电荷产生材料的电荷产生层和含有有机电荷输送材料的电荷输送层构成在导电载体上，其特征在于n值 在以下等式（1）中不大于0.5：eta = eta o En（1）其中eta表示作为整个感光体的量子产率，E表示电场，eta表示常数，并且膜厚度 所述电荷输送层不小于30μm。

    Crystalline oxytitanium phthalocyanine and photoreceptor for use in electrophotography
    8.
    发明授权
    Crystalline oxytitanium phthalocyanine and photoreceptor for use in electrophotography 失效
    用于电子照相术的结晶氧钛酞菁和感光体

    公开(公告)号：US4664997A

    公开(公告)日：1987-05-12

    申请号：US782473

    申请日：1985-10-01

    Applicant: Tetsumi Suzuki ,  Tetsuo Murayama ,  Hitoshi Ono ,  Shigenori Otsuka ,  Mamoru Nozomi

    Inventor： Tetsumi Suzuki ,  Tetsuo Murayama ,  Hitoshi Ono ,  Shigenori Otsuka ,  Mamoru Nozomi

    IPC: C09B67/10 ,  C09B67/12 ,  C09B67/50 ,  G03G5/05 ,  G03G5/06

    CPC classification number: C09B67/0016 ,  C09B67/0026 ,  G03G5/0696

    Abstract: Disclosed is a crystalline oxytitanium phthalocyanine which shows intense diffraction peaks at Bragg angles (2.theta..+-.0.2.degree.) of 9.3.degree., 10.6.degree., 13.2.degree., 15.1.degree., 15.7.degree., 16.1.degree., 20.8.degree., 23.3.degree., 26.3.degree. and 27.1.degree. in the X-ray diffraction spectrum, the intensity of the diffraction peak at Bragg angle of 26.3.degree. being most strong and the intensity of the diffraction peaks at Bragg angles between 4.degree.-8.degree. being less than 5% of the intensity of the diffraction peak at Bragg angle of 26.3.degree.. Further, disclosed is a photoreceptor for use in electrophotography, comprising at least a charge carrier generation layer in which the oxytitanium phthalocyanine above is dispersed in a binder polymer and a charge carrier transport layer laminated thereon.

    Abstract translation: 公开了一种结晶氧钛酞菁，其在9.3°，10.6°，13.2°，15.1°，15.7°，16.1°，20.8°，23.3°，26.3°的布拉格角（2θ+/- 0.2°）处显示出强烈的衍射峰 在X射线衍射光谱中为27.1°，布拉格角26.3°处的衍射峰强度最强，4°-8°之间的布拉格角衍射峰强度小于强度的5％ 的布拉格角为26.3°的衍射峰。 此外，公开了一种用于电子照相术的感光体，其至少包括其中上述氧钛酞菁分散在粘合剂聚合物中的电荷载体产生层和层压在其上的电荷载流子传输层。

    Photosensitive composition for electrophotography
    9.
    发明授权
    Photosensitive composition for electrophotography 失效
    电子照相用光敏组合物

    公开(公告)号：US4184871A

    公开(公告)日：1980-01-22

    申请号：US877501

    申请日：1978-02-13

    Applicant: Hiroshi Oba ,  Tetsuo Murayama ,  Shigenori Otsuka

    Inventor： Hiroshi Oba ,  Tetsuo Murayama ,  Shigenori Otsuka

    IPC: G03G5/06 ,  G03G5/09

    CPC classification number: G03G5/067 ,  G03G5/0668

    Abstract: A photosensitive composition which comprises an electron donative organic photoconductive compound and a sensitizer having the formula ##STR1## wherein A represents an aromatic group or heterocyclic group which can be substituted by an inert group; R represents cyano, nitro, akoxycarbonyl, aryl or carbamoyl group; and n is 0 or 1.

    Abstract translation: 包含给电子有机光电导化合物和具有下式的敏化剂的光敏组合物，其中A表示可被惰性基团取代的芳基或杂环基; R代表氰基，硝基，烷氧羰基，芳基或氨基甲酰基; n为0或1。

    Electrophotographic photoreceptor and use in repeated copying
    10.
    发明授权
    Electrophotographic photoreceptor and use in repeated copying 失效
    电子照相机和重复复制使用

    公开(公告)号：US5130222A

    公开(公告)日：1992-07-14

    申请号：US540327

    申请日：1990-06-19

    Applicant: Shigenori Otsuka ,  Mamoru Nozomi

    Inventor： Shigenori Otsuka ,  Mamoru Nozomi

    IPC: G03G5/05 ,  G03G5/06

    CPC classification number: G03G5/0521 ,  G03G5/064 ,  Y10S430/103

    Abstract: An electrophotographic photoreceptor having an electrically conductive substrate and a photosensitive layer formed thereon, the photosensitive layer comprising a charge-generating agent, an organic charge-transporting agent and an anti-oxidant having the general formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently alkyl groups, is disclosed herein. The electrophotographic photoreceptor according to this invention has an improved durability in repeated copying operations and therefore a prolonged life.

    Abstract translation: 一种电子照相感光体，具有形成在其上的导电基底和感光层，感光层包含电荷产生剂，有机电荷输送剂和抗氧化剂，具有以下通式：其中R1和R2独立地为 烷基。 根据本发明的电子照相感光体在反复复印操作中具有改进的耐久性，因此寿命延长。

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