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1. 发明授权

US5053303A Electrophotographic element having separate charge generating and charge transporting layers 失效
标题翻译：具有独立充电发电和充电运输层的电子元件
公开(公告)号：US5053303A
公开(公告)日：1991-10-01
申请号：US358017
申请日：1989-05-30
申请人： Junei Sakaguchi , Soichi Hasegawa , Shuichi Arai
发明人： Junei Sakaguchi , Soichi Hasegawa , Shuichi Arai
IPC分类号： G03G5/047 , G03G5/06
CPC分类号： G03G5/0616 , G03G5/047 , G03G5/0612 , G03G5/0668 , G03G5/0696
摘要： An electrophotographic photosensitive material suitable for application to a laser beam printer is disclosed which includes an electrically conductive support having provided thereon a charge generating layer containing an X-form, metal-free phthalocyanine and a charge transporting layer containing a specific butadiene compound, hydrazone compound or pyrazoline compound. The charge transporting layer may be prepared by coating with a solution containing the specific compound, a polycarbonate resin and a dioxane-containing solvent.

2. 发明授权

US5972837A Reversible thermal-recording composite and rewritable reversible thermal-recording sheet and card using the same 失效
标题翻译：可逆热敏记录复合和可重写的可逆热敏记录纸和卡片使用相同
公开(公告)号：US5972837A
公开(公告)日：1999-10-26
申请号：US930502
申请日：1997-09-30
申请人： Shoko Satoh , Kazuyoshi Yatsushige , Soichi Hasegawa , Kazuo Nate
发明人： Shoko Satoh , Kazuyoshi Yatsushige , Soichi Hasegawa , Kazuo Nate
IPC分类号： B42D15/10 , B41M5/28 , B41M5/30 , B41M5/333 , B41M5/337
CPC分类号： B41M5/305 , B41M5/3335 , B41M5/3338
摘要： A reversible thermal-recording composite capable of exerting great performance for repeated use and yielding good printing quality at higher coloring concentrations is provided, wherein the coloring and fading reaction of a leuco dye with a coloring and fading agent is utilized and a specific coloring and fading agent, a specific inorganic filler and a specific amine compound and the like are used in the thermal-recording layer, and a thermal-recording sheet and a thermal-recording card using the same are also provided.The thermal-recording sheet comprises the thermal-recording composite and comprises at least (1) a substrate, (2) a reversible thermal-recording layer and (3) a protective layer, wherein the thermal-recording layer contains a reversible coloring dye, a coloring and fading agent, an inorganic filler and an amine compound in an organic polymeric binder and the coloring and fading agent is an amide compound produced by dehydration condensation of an aliphatic carboxylic acid with a phenolic hydroxyl group and an aliphatic alkylamine. A reversible thermal-recording composite with a higher coloring concentration, greater long-term stability of image, excellent printing quality and good durability for repetition, can be realized, together with a thermal-recording sheet or card using the same.
摘要翻译： PCT No.PCT / JP97 / 00221 Sec。 371日期：1997年9月30日 102（e）1997年9月30日PCT PCT 1997年1月27日PCT公布。公开号WO97 / 28005 日期1997年7月8日提供了一种能够在较高着色浓度下重复使用并产生良好印刷质量的可逆热敏记录复合材料，其中使用无色染料与着色剂和褪色剂的着色和褪色反应，在热敏记录层中使用特定的着色和褪色剂，特定的无机填料和特定的胺化合物等，并且还提供热敏记录纸和使用其的热敏记录卡。热敏记录片材包括热敏记录复合材料，并且至少包括（1）基材，（2）可逆热记录层和（3）保护层，其中热记录层含有可逆着色染料，有机聚合物粘合剂中的着色和褪色剂，无机填料和胺化合物，着色和褪色剂是通过脂族羧酸与酚羟基和脂族烷基胺的脱水缩合制备的酰胺化合物。可以实现具有较高着色浓度，更长的图像长期稳定性，优异的印刷质量和良好的重复耐久性的可逆热敏记录复合材料，以及使用其的热敏记录片材或卡片。

3. 发明授权

US5049465A Electrophotographic photosensitive material and method of preparing same 失效
标题翻译：电子照相感光材料及其制备方法
公开(公告)号：US5049465A
公开(公告)日：1991-09-17
申请号：US434262
申请日：1989-11-13
申请人： Junei Sakaguchi , Soichi Hasegawa , Shuichi Arai
发明人： Junei Sakaguchi , Soichi Hasegawa , Shuichi Arai
IPC分类号： G03G5/047 , G03G5/06
CPC分类号： G03G5/0612 , G03G5/047 , G03G5/0616 , G03G5/0668 , G03G5/0696
摘要： An electrophotographic photosensitive material suitable for application to a lazer beam printer is disclosed which includes an electrically conductive support having provided thereon a charge generating layer containing a titanium phthalocyanine pigment and a charge transporting layer containing a specific hydrazone compound. The charge transporting layer may be prepared by coating with a solution containing the specific compound, a polycarbonate resin and a dioxane-containing solvent.

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