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51. 发明授权

US4973737A Process for producing benzyl esters of aromatic hydroxycarboxylic acids 失效
标题翻译：制备芳族羟基羧酸苄基酯的方法
公开(公告)号：US4973737A
公开(公告)日：1990-11-27
申请号：US303044
申请日：1989-01-30
申请人： Ryuzo Ueno , Hiroaki Tsuchiya , Shigeru Itoh , Ichiro Yamamoto
发明人： Ryuzo Ueno , Hiroaki Tsuchiya , Shigeru Itoh , Ichiro Yamamoto
IPC分类号： B01J31/00 , C07B61/00 , C07C67/03 , C07C67/08 , C07C69/88 , C07C69/94
CPC分类号： C07C67/03 , C07C69/88
摘要： Highly pure benzyl esters of aromatic hydroxycarboxylic acids are produced in high yields by reacting an aromatic hydroxycarboxylic acid or its lower alkyl ester with a benzyl alcohol in the presence of an organotin compound of the general formula ##STR1## wherein R's are identical or different and each represents an alkyl group having 1 to 8 carbon atoms or an aryl group, and Z represents an oxygen or sulfur atom,an organotin compound of the general formulaR.sub.p SnX.sub.q (II)wherein R is as defined, X represents a halogen atom or the group --OCOR.sup.1 in which R.sup.1 represents a saturated or unsaturated alkyl group having 1 to 18 carbon atoms or an aryl group, p is 2, 3 or 4, q is 0, 1 or 2, the sum of p and q is 4, and when q is 2, the two X's may be linked to each other to form the group --OCO--R.sup.2 --COO-- in which R.sup.2 represents a saturated or unsaturated alkylene group having 1 to 10 carbon atoms or an arylene group,or an organotitanium compound of the general formulaTi(OR).sub.4 (III)wherein R is as defined.
摘要翻译：通过使芳族羟基羧酸或其低级烷基酯与苄醇在通式为（I）的有机锡化合物的存在下反应，其中R是相同的或通过芳基羟基羧酸或其低级烷基酯与芳基羟基羧酸的高纯度苄酯各自表示碳原子数1〜8的烷基或芳基，Z表示氧或硫原子，通式RpSnXq（II）表示的有机锡化合物，其中，R如上所定义，X表示卤素原子或基团-OCOR1，其中R1表示具有1至18个碳原子的饱和或不饱和烷基或芳基，p为2,3或4，q为0,1或2，p和q之和为4，当q为2时，两个X可以彼此连接形成基团-OCO-R 2 -COO-，其中R 2表示具有1至10个碳原子的饱和或不饱和亚烷基或亚芳基，或有机钛通式为Ti（OR）4（III）的化合物，其中R为a 定义。

52. 发明授权

US4941003A Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US4941003A
公开(公告)日：1990-07-10
申请号：US260311
申请日：1988-10-20
申请人： Atsushi Takeda , Masahiro Itoh , Hiroaki Tsuchiya
发明人： Atsushi Takeda , Masahiro Itoh , Hiroaki Tsuchiya
IPC分类号： G03G15/01
CPC分类号： G03G15/0152 , G03G15/0163
摘要： After a first image is formed on an image bearing member, the potential of the image bearing member is attenuated, and then, the image bearing member is re-charged. Thereafter, a second image is formed. The image forming apparatus includes a potential sensor for detecting the surface potential of the image bearing member, and in accordance with the output of the potential sensor, amount of potential attenuation and/or amount of re-charging is controlled so that the potential difference between the potential of the first developed portion after the re-charging and the background potential is converged into a predetermined target range.
摘要翻译：在图像承载部件上形成第一图像之后，图像承载部件的电位被衰减，然后使图像承载部件被再充电。此后，形成第二图像。图像形成装置包括用于检测图像承载部件的表面电位的电位传感器，并且根据电位传感器的输出，控制电位衰减量和/或再充电量，使得电位传感器再充电后的第一显影部分的电位和背景电位被收敛到预定的目标范围内。

53. 发明授权

US4530724A Azo pigments derived from 2-hydroxynaphthalene-3-carboxylic acid or its salts having improved color 失效
标题翻译：衍生自2-羟基萘-3-羧酸的偶氮颜料或其盐具有改进的颜色
公开(公告)号：US4530724A
公开(公告)日：1985-07-23
申请号：US413797
申请日：1982-09-01
申请人： Ryuzo Ueno , Hiroaki Tsuchiya , Shigeru Itoh
发明人： Ryuzo Ueno , Hiroaki Tsuchiya , Shigeru Itoh
IPC分类号： C09B29/15 , C09B67/20 , C09B67/22 , C09B29/01
CPC分类号： C09B67/0046 , C09B29/103
摘要： The color of azo pigments derived from 2-hydroxynaphthalene-3-carboxylic acid or its salts are improved by the coupling reaction of a diazonium compound of an aromatic aminosulfonic acid with a coupling component which is a mixture of (1) 2-hydroxynaphthalene-3-carboxylic acid or its salt, (2) .beta.-naphthol or its salt, and (3) a phenolic by-product having a molecular weight of about 300 and containing about 1 equivalent of phenolic hydroxy groups. The phenolic by-product can be obtained by evaporating .beta.-naphthol from a tarry substance formed as a by-product during the reaction of an alkali .beta.-naphtholate with carbon dioxide, extracting the residue with an alkali and precipitating the soluble matter with an acid. The color or tone of the azo pigment is stabilized by the use of the coupling component. The azo pigments range from those having dark color and a greater degree of transparency which are suitable for use in printing inks to those having increased brightness which are suitable for use in paints.
摘要翻译：通过芳香族氨基磺酸的重氮化合物与作为（1）2-羟基萘-3的混合物的偶合成分的偶联反应，可以改善由2-羟基萘-3-甲酸或其盐衍生的偶氮颜料的颜色 - 羧酸或其盐，（2）β-萘酚或其盐，和（3）分子量约为300并含有约1当量酚羟基的酚类副产物。酚类副产物可以通过在碱性β-萘酚与二氧化碳的反应期间从作为副产物形成的焦油状物质中蒸发β-萘酚获得，用碱萃取残余物并用酸沉淀可溶物质。通过使用偶联组分使偶氮颜料的颜色或色调稳定。偶氮颜料的范围从具有深色和较高透明度的那些，其适用于将油墨用于具有适合用于涂料中的亮度增加的那些。

54. 发明授权

US4375328A Electrophotographic device with light quantity control 失效
标题翻译：具有光量控制的电子照相设备
公开(公告)号：US4375328A
公开(公告)日：1983-03-01
申请号：US148215
申请日：1980-05-09
申请人： Hiroaki Tsuchiya , Yasuhide Kurosaki
发明人： Hiroaki Tsuchiya , Yasuhide Kurosaki
IPC分类号： G03G15/00 , G03G15/04 , G03G15/043 , G03G15/047
CPC分类号： G03G15/043
摘要： An electrophotographic device constructed with a light irradiating device to irradiate light on a photosensitive member, a charging device to uniformly charge the photosensitive member after the light irradiation by the light irradiating device; a light image projecting device to project a light image after the charging by the charging device to thereby form an electrostatic latent image corresponding to the light image on the photosensitive member, a developing device to develop the electrostatic latent image, and a control device to vary the irradiated light quantity by the light irradiating device and the exposure light quantity by the light image projecting device in accordance with a potential state of the photosensitive member at the time of the latent image formation.
摘要翻译：一种用光照射装置构造的照相装置，用于将光照射在感光构件上，充电装置在光照射装置进行光照射之后对感光构件进行均匀充电; 光图像投影装置，用于通过充电装置在充电之后投影光图像，从而形成与感光构件上的光图像相对应的静电潜像;显影装置，用于显影静电潜像;以及控制装置，以改变照射光照射装置的照射光量和由光影像投影装置照射的曝光量根据潜像形成时的感光体的电位状态。

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