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    • 65. 发明授权
    • ECL Circuit having a negative feedback differential transistor circuit
to increase the operating speed of the output circuit
    • ECL电路具有负反馈差分晶体管电路,以增加输出电路的工作速度
    • US4563600A
    • 1986-01-07
    • US441180
    • 1982-11-12
    • Tohru KobayashiKazuo Nakamura
    • Tohru KobayashiKazuo Nakamura
    • H03K19/013H03K19/018H03K19/086H03K19/092
    • H03K19/01812H03K19/013H03K19/086
    • An ECL semiconductor integrated circuit is constructed of an input circuit, a minor amplitude ECL circuit and an output circuit. The input circuit has its operating speed improved by using a negative feedback type differential transistor circuit. Thanks to the improvement in the operating speed of the input circuit, the overall response time of the ECL semiconductor integrated circuit can be significantly shortened. The output circuit is arranged to operate in conjunction with a minor amplitude signal received from the ECL circuit, and can include provisions both for generating minor level signals for the ECL and an output circuit at a normal ECL level for coupling to external circuit operating at such a normal level. Also, in one embodiment, the output circuit can operate with a negative feedback type differential transistor circuit to increase the operating speed of the output circuit.
    • ECL半导体集成电路由输入电路,次振幅ECL电路和输出电路构成。 通过使用负反馈型差分晶体管电路,输入电路的工作速度得到改善。 由于输入电路的运行速度有所改善,ECL半导体集成电路的整体响应时间可以大大缩短。 输出电路被配置为与从ECL电路接收的次振幅信号一起工作,并且可以包括用于为ECL生成次级信号和在正常ECL电平处的输出电路的装置,用于耦合到在这样操作的外部电路 正常水平 此外,在一个实施例中,输出电路可以利用负反馈型差分晶体管电路工作,以增加输出电路的工作速度。
    • 70. 发明授权
    • Electrophotographic photoreceptor
    • 电子照相感光体
    • US08859818B2
    • 2014-10-14
    • US13184814
    • 2011-07-18
    • Junji NakamuraTohru Kobayashi
    • Junji NakamuraTohru Kobayashi
    • C07C211/00G03G5/147C07C217/80G03G5/06G03G5/05C07C211/54G03G5/047
    • G03G5/0614C07C211/54C07C217/80G03G5/047G03G5/0564G03G5/0668G03G5/0672G03G5/14708G03G5/14756
    • An object of the present invention is to provide a charge transport material and an electrophotographic photoreceptor using the charge transport material, the charge transport material sufficiently satisfying characteristics conventionally desired for a charge transport material for an electrophotographic photoreceptor, specifically, the charge transport material having a good solubility in a binder polymer, allowing formation of a stable and high-concentration organic thin film therefrom, and having a high carrier mobility. To achieve the object, the present invention provides a tris(4-styrylphenyl)amine derivative represented by the following general formula (1): wherein R1 represents a methyl group or methoxy group, and R2 represents a hydrogen atom, methyl group, or methoxy group, provided that a case where R1 and R2 are a methyl group and R2 is at the meta-position is excluded; wherein 50% or more of geometrical isomers have three double bonds which are all trans.
    • 本发明的目的是提供一种使用电荷输送材料的电荷输送材料和电子照相感光体,电荷输送材料充分满足电子照相感光体的电荷输送材料通常所要求的特性,具体地说,具有 在粘合剂聚合物中具有良好的溶解性,从而形成稳定且高浓度的有机薄膜,并具有高载流子迁移率。 为了达到上述目的,本发明提供由以下通式(1)表示的三(4-苯乙烯基苯基)胺衍生物:其中R1表示甲基或甲氧基,R2表示氢原子,甲基或甲氧基 只要R1和R2为甲基,R2为间位的情况除外; 其中50%或更多的几何异构体具有全部反式的三个双键。