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    • 7. 发明申请
    • Thermosensitive recording material and method of producing the same
    • 热敏记录材料及其制造方法
    • US20070184978A1
    • 2007-08-09
    • US11701079
    • 2007-01-31
    • Shinji TakanoHiroaki Matsui
    • Shinji TakanoHiroaki Matsui
    • B41M5/24
    • B41M5/42B41M5/3275B41M5/3336B41M5/423B41M5/426B41M5/44B41M2205/04B41M2205/40
    • A thermosensitive recording material and the method of producing the same are provided, in which the protective layer-coating liquid represents superior temporal stability, transporting ability at printing is superior even under higher temperatures and humidities and even by use of printers with lower motor torque, and also coloring property and storage property at image and background portions are excellent. The thermosensitive recording material comprises comprises at least a support, a thermosensitive recording layer and a protective layer in order, wherein the thermosensitive recording layer comprises at least a leuco dye and a color developer, and the protective layer is formed from a protective layer-coating liquid comprising at least a diacetone-modified polyvinyl alcohol, a carbodihydrazide compound and an aqueous ammonia solution.
    • 提供了一种热敏记录材料及其制备方法,其中保护层涂布液体表现出优异的时间稳定性,即使在较高的温度和湿度下甚至通过使用具有较低电机转矩的打印机,打印时的传送能力也优异, 并且在图像和背景部分的着色性质和存储性都优异。 热敏记录材料包括至少一种载体,热敏记录层和保护层,其中热敏记录层至少包含无色染料和彩色显影剂,保护层由保护层涂层形成 至少包含双丙酮改性的聚乙烯醇,碳二酰肼化合物和氨水溶液的液体。
    • 10. 发明授权
    • Laser diode with an improved multiple quantum well structure adopted for
reduction in wavelength chirping
    • 激光二极管具有改进的多重量子阱结构,用于减少波长啁啾
    • US6111904A
    • 2000-08-29
    • US2401
    • 1998-01-02
    • Shinji Takano
    • Shinji Takano
    • H01S5/00H01S5/062H01S5/10H01S5/12H01S5/20H01S5/22H01S5/227H01S5/32H01S5/34H01S5/343H01S3/19
    • B82Y20/00H01S5/22H01S5/34H01S5/06209H01S5/1053H01S5/106H01S5/12H01S5/2077H01S5/2275H01S5/2277H01S5/3211H01S5/3403H01S5/3407H01S5/3415H01S5/34306H01S5/34366
    • The present invention provides another active layer structure provided in a light emission device for emitting a light with a predetermined wavelength. The active layer structure comprises a multiple quantum well structure and at least a second well layer. The multiple quantum well structure comprises alternating laminations of first well layers showing electroluminescence and potential barrier layers. The first well layers have a first set of energy band gaps which are uniform and corresponds to the predetermined wavelength, provided that energy band gap is defined as a difference between a ground level of electrons in conduction band and a ground level of holes in valence band. The second well layer is provided within any of the potential barer layers so that the second well layer is separated via the potential barrier layers from the first well layers. The second well layer has a second energy band gap in a range which is above the first set of energy band gaps and below a set of forbidden band widths of the potential barrier layers. The range of the second energy band gaps is defined so that the second well layer exhibits carrier accumulations and no electro-luminescence to thereby ensure that carriers accumulated in the second well layer are injected into the first well layers when the first well layers are deficient in carriers for the electro-luminescence.
    • 本发明提供了一种设置在用于发射具有预定波长的光的发光装置中的另一有源层结构。 有源层结构包括多量子阱结构和至少第二阱层。 多量子阱结构包括显示电致发光和势垒层的第一阱层的交替层叠。 第一阱层具有均匀的并且对应于预定波长的第一组能带隙,只要能带隙被定义为导带中的电子的地电位与价带中的空穴的地平面之间的差 。 第二阱层设置在任何潜在的覆盖层内,使得第二阱层经由势垒层与第一阱层分离。 第二阱层具有在第一组能带隙之上并且低于势垒层的一组禁带宽度的范围内的第二能带隙。 定义第二能带隙的范围,使得第二阱层表现出载流子积聚和无电致发光,从而确保当第一阱层缺陷时将积聚在第二阱层中的载流子注入到第一阱层中 载体用于电致发光。