公开(公告)号：US4839252A

公开(公告)日：1989-06-13

申请号：US160930

申请日：1988-02-26

申请人： Tadaichi Murata ,  Tsuneo Isomura ,  Kenichi Fujimori ,  Fuminori Tsuruta ,  Kazuhito Dohi ,  Masahiro Horigome ,  Yoshitarou Nakayama ,  Sachio Oomori

发明人： Tadaichi Murata ,  Tsuneo Isomura ,  Kenichi Fujimori ,  Fuminori Tsuruta ,  Kazuhito Dohi ,  Masahiro Horigome ,  Yoshitarou Nakayama ,  Sachio Oomori

IPC分类号： G03G5/06

CPC分类号： G03G5/0668 ,  G03G5/0616

摘要： An electrophotographic photoreceptor having a photosensitive layer containing a butadiene compound represented by general formula ##STR1## wherein A.sub.1 to A.sub.4 are alkyl group, and a hydrazone compound represented by general formula ##STR2## wherein B.sub.1 and B.sub.2 are alkyl, phenyl, benzyl or methoxyphenyl groups, R.sub.1 is hydrogen, alkyl, alkoxy or benzyloxy groups and R.sub.2 is alkyl, phenyl or benzyl groups. The photoreceptor can suppress the photo-deterioration due to cyclic operation and is useful in the field of copying printers.

摘要翻译： 具有含有通式“IMAGE”表示的丁二烯化合物的光敏层的电子照相感光体，其中A1至A4为烷基，和由通式“IMAGE”表示的腙化合物，其中B1和B2为烷基，苯基，苄基或甲氧基苯基 R 1是氢，烷基，烷氧基或苄氧基，R 2是烷基，苯基或苄基。 感光体可以抑制由于循环操作引起的光劣化，并且在复印打印机领域是有用的。

公开(公告)号：US5399453A

公开(公告)日：1995-03-21

申请号：US205703

申请日：1994-03-04

申请人： Kazuhito Dohi ,  Hajime Suzuki ,  Tetsushi Shiozawa ,  Yoichi Watanabe

发明人： Kazuhito Dohi ,  Hajime Suzuki ,  Tetsushi Shiozawa ,  Yoichi Watanabe

IPC分类号： G03G5/05 ,  G03G5/06

CPC分类号： G03G5/0679 ,  G03G5/0503 ,  G03G5/0571 ,  G03G5/0614

摘要： The invention provides an electrophotographic photoreceptor excellent in various characteristics, especially effectively protected from light fatigue and stable against repeated use. The photoreceptor comprises an electroconductive substrate having placed thereon a photosensitive layer which contains a bisazo compound of the formula [I]: ##STR1## a diamine derivative of the formula [IV]: ##STR2## and a specific amount of a phenolic antioxidant, and the photoreceptor contains, if necessary, an intermediate layer between the electroconductive substrate and the photosensitive layer.

摘要翻译： 本发明提供了各种特性优异的电子照相感光体，特别是有效地防止轻度疲劳并且对于反复使用是稳定的。 感光体包括导电基材，其上放置有包含式[I]的双偶氮化合物：感光层的感光层：抗氧化剂，如果需要，感光体在导电性基材和感光层之间含有中间层。

公开(公告)号：US5494766A

公开(公告)日：1996-02-27

申请号：US341143

申请日：1994-11-16

申请人： Kazuhito Dohi ,  Hajime Suzuki

发明人： Kazuhito Dohi ,  Hajime Suzuki

IPC分类号： G03G5/05 ,  G03G5/06 ,  G03G5/14 ,  G03G5/09 ,  G03G5/047

CPC分类号： G03G5/144 ,  G03G5/0612 ,  G03G5/142 ,  G03G5/0618

摘要： An electrophotographic photoreceptor which is excellent in various properties, has effectively inhibited photo-induced fatigue and has stability against repeated use, and which comprises an electroconductive support and a photosensitive layer comprising as essential components a charge-generating material and a diaminodiphenyl compound represented by the general formula (I): ##STR1##

摘要翻译： 各种性能优异的电子照相感光体有效地抑制了光致疲劳，并具有反复使用的稳定性，并且包括导电性支持体和感光层，其包含电荷产生材料和二氨基二苯基化合物 通式（I）： [I]