Tryptanthrine compounds
    4.
    发明授权
    Tryptanthrine compounds 失效
    胰蛋白ine啶化合物

    公开(公告)号:US5817810A

    公开(公告)日:1998-10-06

    申请号:US685608

    申请日:1996-07-24

    CPC分类号: C07D487/04 G03G5/0651

    摘要: The present invention provides a novel tryptanthrine derivative represented by a general formula: ##STR1## wherein R.sup.1 is an oxygen atom, or group represented by a formula: ##STR2## wherein R.sup.2A and R.sup.2B are the same or different and indicate a hydrogen atom, a cyano group, an acyl group, an alkoxycarbonyl group or an alkyl group, provided that R.sup.2A and R.sup.2B are not hydrogen atoms simultaneously; and R.sup.3A, R.sup.3B, R.sup.3C, R.sup.3D, R.sup.4A, R.sup.4B, R.sup.4C and R.sup.4D are the same or different and indicate a hydrogen atom or an alkyl group which may have a substituent, provided that when R.sup.1 is an oxygen atom, any one of R.sup.3A through R.sup.4D is a cyano group. Such a tryptanthrine derivative has an excellent electron transport capability to be suitably used for the electrophotosensitive material.

    摘要翻译: 本发明提供了一种由以下通式表示的通式表示的新型色甘那宁衍生物:其中R2A和R2B相同或不同,表示氢原子,氰基,酰基,烷氧基羰基或 烷基,条件是R2A和R2B同时不是氢原子; R3A,R3B,R3C,R3D,R4A,R4B,R4C和R4D相同或不同,表示氢原子或可具有取代基的烷基,条件是当R1为氧原子时,R3A至 R4D是氰基。 这种吡啶啶衍生物具有优异的电子传递能力,适合用于光敏材料。

    Trinitrofluorenonimine derivative and electrophotosensitive material
using the same
    5.
    发明授权
    Trinitrofluorenonimine derivative and electrophotosensitive material using the same 失效
    三硝基芴酮亚胺衍生物和使用其的电光敏材料

    公开(公告)号:US5753394A

    公开(公告)日:1998-05-19

    申请号:US561832

    申请日:1995-11-27

    IPC分类号: C07C251/20 G03G5/06 G03G5/14

    摘要: The present invention provides a trinitrofluorenonimine derivative represented by the general formula (I): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are the same or different and indicate an alkyl group which may have a substituent. Such a derivative is superior in electron transferring capability. Accordingly, the electrophotosensitive material having the photosensitive layer containing this derivative is superior in sensitivity.

    摘要翻译: 本发明提供由通式(I)表示的三硝基芴酮亚胺衍生物:其中R 1,R 2和R 3相同或不同,表示可以具有取代基的烷基。 这种衍生物在电子转移能力方面是优越的。 因此,具有含有该衍生物的感光层的电光敏材料的灵敏度优异。

    Shadow mask type color cathode ray tube whose panel surface is flat
    7.
    发明授权
    Shadow mask type color cathode ray tube whose panel surface is flat 失效
    荫罩型彩色阴极射线管,其面板平面

    公开(公告)号:US06407494B1

    公开(公告)日:2002-06-18

    申请号:US09656360

    申请日:2000-09-06

    IPC分类号: H01J2910

    CPC分类号: H01J29/861 H01J2229/862

    摘要: A color cathode ray tube includes a panel having an outer surface which is flat and an inner surface which is a curved surface, and the inner surface has an approximately rectangular effective screen on which an image is to be displayed. Letting Tc, Td and D be, respectively, the glass thickness of the panel at the center thereof, the glass thickness of an end of a diagonal effective diameter, and half of the diagonal effective diameter, (Td−Tc)/D≦7.5% and the maximum deflection angle is between 96° and 99°.

    摘要翻译: 彩色阴极射线管包括具有平坦的外表面和作为曲面的内表面的面板,并且内表面具有近似矩形的有效屏幕,在该屏幕上将显示图像。 让Tc,Td和D分别为面板中心的玻璃厚度,对角线有效直径的端部的玻璃厚度和对角有效直径的一半(Td-Tc)/ D <= 7.5%,最大偏转角在96°和99°之间。