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    • 84. 发明授权
    • Catalyst for direct conversion of esters of lactic acid to lactide and the method for producing lactide using the same
    • 用于将乳酸酯直接转化为丙交酯的催化剂以及使用其制备丙交酯的方法
    • US08258317B2
    • 2012-09-04
    • US12563885
    • 2009-09-21
    • Jong-San ChangYoung-Kyu HwangJung-Ho LeeJong-Min LeeMin-Hee Jung
    • Jong-San ChangYoung-Kyu HwangJung-Ho LeeJong-Min LeeMin-Hee Jung
    • C07D319/00
    • C07D319/12
    • The present disclosure discloses a catalyst for directly producing a lactide which is a cyclic ester used as a monomer for polylactides, and a method for directly producing a lactide using the catalyst, the method including the transesterification reaction between two molecules of an ester of lactic acid or a mixture containing the ester of lactic acid with a small amount of lactic acid and oligomer of lactic acid under an inert environment in the presence of a titanium-based catalyst or a catalyst mixture containing the titanium-based catalyst so as to produce lactide while simultaneously removing an alcohol (ROH) generated as a by-product. As compared to a conventional commercialized process, since the method for producing a lactide in accordance with the present disclosure is a novel process capable of directly producing the lactide from the ester of lactic acid, energy consumption is low and the lactide can be produced through a simple process showing a high yield while maintaining optical property (D-form or L-form optical isomer).
    • 本公开公开了一种用于直接生产丙交酯的催化剂,其是用作聚交酯的单体的环状酯,以及使用该催化剂直接生产丙交酯的方法,包括两分子乳酸酯之间的酯交换反应的方法 或含有乳酸酯与少量乳酸和乳酸低聚物的混合物在惰性环境下,在钛基催化剂或含有钛基催化剂的催化剂混合物存在下,以产生丙交酯,同时 同时除去作为副产物产生的醇(ROH)。 与传统的商业化方法相比,由于根据本公开的制备丙交酯的方法是能够从乳酸酯直接生产丙交酯的新方法,能量消耗低,并且丙交酯可以通过 简单的方法在保持光学性质(D型或L型光学异构体)下显示高产率。
    • 87. 发明授权
    • Liquid crystal displays using organic insulating material and manufacturing methods thereof
    • 使用有机绝缘材料的液晶显示器及其制造方法
    • US07973905B2
    • 2011-07-05
    • US11036222
    • 2005-01-18
    • Soo-Guy RhoJung-Ho Lee
    • Soo-Guy RhoJung-Ho Lee
    • G02F1/1339
    • G02F1/136213G02F1/136209G02F1/136227G02F2001/133357
    • A passivation layer is formed by coating a flowable insulating material on the substrate where a thin film transistor and a storage capacitor electrode, and a pixel electrode is formed on the passivation layer. A portion of the passivation layer is etched using the pixel electrode as a mask to make a groove on the thin film transistor, and then a black matrix is formed by filling an organic black photoresist in the groove. To increase the storage capacitance, a portion of the passivation layer is removed or to form a metal pattern on the storage capacitor electrode. A flowable insulating material is used as a gate insulating layer to planarize the substrate. In the case of the etch stopper type thin film transistor, a photo definable material is used as the etch stopper layer to reduce the parasitic capacitance between the gate electrode and the drain electrode.
    • 通过在基板上涂布可流动的绝缘材料形成钝化层,在钝化层上形成薄膜晶体管和存储电容器电极以及像素电极。 使用像素电极作为掩模蚀刻钝化层的一部分,以在薄膜晶体管上形成沟槽,然后通过在沟槽中填充有机黑色光致抗蚀剂形成黑色矩阵。 为了增加存储电容,去除钝化层的一部分或在存储电容器电极上形成金属图案。 使用可流动绝缘材料作为栅极绝缘层来平坦化基板。 在蚀刻停止型薄膜晶体管的情况下,使用光可定义材料作为蚀刻停止层,以减小栅电极和漏电极之间的寄生电容。
    • 88. 发明授权
    • Device and method for remotely measuring and monitoring antenna system using mobile terminal
    • 使用移动终端远程测量和监测天线系统的设备和方法
    • US07917175B2
    • 2011-03-29
    • US10586106
    • 2005-01-14
    • Jae-Sub SongJin-Ho ChoiJae-Kon KimJung-Ho Lee
    • Jae-Sub SongJin-Ho ChoiJae-Kon KimJung-Ho Lee
    • H04M1/00
    • G01R27/06G01R29/10H04B17/103H04B17/18H04B17/40
    • An antenna system measurer for a repeater and a base station measures powers of a progressive wave and a reflected wave of a transmit/receive antenna, and transmits measured results to a monitoring server in a radio data format such as an SMS message. The monitoring server receives the radio data, identifies a repeater and a base station from sender information of the radio data, and calculates a VSWR based on the measured values. The VSWR is modified based on characteristics of the base station such as length and substance of feeders from a base station identifier corresponding to the sender information. According to the present invention, the remote antenna system is monitored in real-time without visits or installation fees, and a plurality of repeaters and base stations is managed in a combined manner.
    • 用于中继器和基站的天线系统测量器测量发射/接收天线的逐行波和反射波的功率,并且以诸如SMS消息的无线电数据格式将测量结果发送到监视服务器。 监视服务器从无线电数据的发送者信息接收无线电数据,识别中继器和基站,并且基于测量值来计算VSWR。 基于来自与发送者信息对应的基站标识符的馈送装置的长度和实质,基于基站的特性修改VSWR。 根据本发明,远程天线系统被实时监控,无需访问或安装费用,并且以组合的方式管理多个中继器和基站。