Continuous process for the production of optically pure (s)-beta-hydroxy-y-butyrolactone
    21.
    发明申请
    Continuous process for the production of optically pure (s)-beta-hydroxy-y-butyrolactone 审中-公开
    用于制备光学纯的(β-羟基-γ-丁内酯)的连续方法

    公开(公告)号:US20060052617A1

    公开(公告)日:2006-03-09

    申请号:US10528246

    申请日:2002-09-18

    IPC分类号: C07D305/12

    CPC分类号: C07D307/33 C07D307/32

    摘要: Disclosed is a continuous process for the production of optically pure (S)-β-hydroxy-γ-butyrolactone having constantly maintained optical activity, consisting of hydrogenating 2-50 wt % of a substituted carboxylic acid derivative in a solvent using a fixed bed reactor filled with a precious metal catalyst-impregnated inorganic oxide carrier at 50-500° C. under pressure of 15-5,500 psig at weight-space-velocity of 0.1-10 h−1, in which a molar ratio of hydrogen to carboxylic acid derivative ranges from 2 to 10. The desired material can be produced in higher optical purity and at higher yield by the current process which is relatively simpler and environmentally safer than conventional processes. Additionally, increased production efficiency leads to production of the desired material on a large scale.

    摘要翻译: 公开了一种用于生产具有持续保持光学活性的光学纯(S)-β-羟基-γ-丁内酯的连续方法,其包括使用固定床反应器在溶剂中2-50重量%的取代的羧酸衍生物 在50-500℃下在15-5,500psig的压力下填充贵重金属催化剂浸渍的无机氧化物载体,重量 - 空间速度为0.1-10小时-1,其中摩尔 氢与羧酸衍生物的比例范围为2至10.所需材料可以通过现有方法以更高的光学纯度和更高的产率生产,其比常规方法相对简单且环境更安全。 此外,提高的生产效率导致所需材料的大规模生产。

    Hinge apparatus and watch type portable terminal having the same
    22.
    发明申请
    Hinge apparatus and watch type portable terminal having the same 有权
    具有相同功能的铰链装置和手表型便携式终端

    公开(公告)号:US20050272486A1

    公开(公告)日:2005-12-08

    申请号:US11101456

    申请日:2005-04-08

    摘要: A hinge apparatus includes a substantially cylindrical holder having at least one guide hole with a predetermined degree slope that extends in a longitudinal direction. A hinge shaft includes a substantially cylindrical surface configured to linearly move in the longitudinal direction of the holder. A guide pin has an end located inside the guide hole and is configured to extend through the cylindrical surface of the hinge shaft. Therefore, when the hinge shaft moves linearly in the holder, the guide pin moves along the guide hole so that the hinge shaft rotates in the holder.

    摘要翻译: 铰链装置包括基本上圆柱形的保持器,其具有至少一个沿纵向方向延伸的预定斜度的引导孔。 铰链轴包括基本上圆柱形的表面,其构造成沿着保持器的纵向方向线性移动。 引导销具有位于引导孔内部的端部,并且构造成延伸穿过铰链轴的圆柱形表面。 因此,当铰链轴在保持架中线性移动时,引导销沿着引导孔移动,使得铰链轴在保持器中旋转。

    Method for selective dealkylation of alkyl-substituted C9+ aromatic compounds using bimodal porous dealkylation catalyst at low temperature
    23.
    发明授权
    Method for selective dealkylation of alkyl-substituted C9+ aromatic compounds using bimodal porous dealkylation catalyst at low temperature 有权
    在低温下使用双峰多孔脱烷基化催化剂选择性脱烷基烷基取代的C 9+芳族化合物的方法

    公开(公告)号:US08735641B2

    公开(公告)日:2014-05-27

    申请号:US13530414

    申请日:2012-06-22

    IPC分类号: C07C4/18

    摘要: Disclosed is a method for selective dealkylation of alkyl-substituted C9+ aromatic compounds using a bimodal porous dealkylation catalyst at a low temperature. The catalyst has a bimodal porous structure including both mesopores and micropores. The catalyst includes a crystalline aluminosilicate and a metal. The catalyst is highly active at a low temperature. According to the method, C9+ aromatic compounds substituted with at least one C2+ alkyl group as by-products formed by xylene production can be selectively dealkylated and converted to BTX, etc. on a large scale within a short time. In addition, the method is an environmentally friendly process entailing reduced waste treatment cost when compared to conventional mesitylene production methods. Therefore, high value-added mesitylene can be separated from low value-added C9+ aromatic compounds at lower cost compared to conventional methods. Furthermore, the supported metal catalyst is easy to recover after dealkylation and is recyclable, thereby contributing to reduced cost.

    摘要翻译: 公开了使用双峰多孔脱烷基化催化剂在低温下选择性烷基转移烷基取代的C 9+芳族化合物的方法。 催化剂具有包括中孔和微孔的双峰多孔结构。 催化剂包括结晶硅铝酸盐和金属。 该催化剂在低温下具有高活性。 根据该方法,通过二甲苯生成形成的作为副产物的至少一个C2 +烷基取代的C9 +芳香族化合物可以选择性地脱烷基化并在短时间内大规模转化为BTX等。 此外,与常规的均三甲苯生产方法相比,该方法是一种环境友好的方法,降低了废物处理成本。 因此,与常规方法相比,高附加值的均三甲苯可以以低成本的C9 +芳族化合物分离。 此外,负载金属催化剂在脱烷基化后容易回收并且是可回收的,从而有助于降低成本。

    METHOD FOR SELECTIVE DEALKYLATION OF ALKYL-SUBSTITUTED C9+ AROMATIC COMPOUNDS USING BIMODAL POROUS DEALKYLATION CATALYST AT LOW TEMPERATURE
    24.
    发明申请
    METHOD FOR SELECTIVE DEALKYLATION OF ALKYL-SUBSTITUTED C9+ AROMATIC COMPOUNDS USING BIMODAL POROUS DEALKYLATION CATALYST AT LOW TEMPERATURE 有权
    在低温下使用双模多孔脱乙酰化催化剂选择性取代烷基取代的C9 +芳族化合物的方法

    公开(公告)号:US20130165727A1

    公开(公告)日:2013-06-27

    申请号:US13530414

    申请日:2012-06-22

    IPC分类号: C07C4/18

    摘要: Disclosed is a method for selective dealkylation of alkyl-substituted C9+ aromatic compounds using a bimodal porous dealkylation catalyst at a low temperature. The catalyst has a bimodal porous structure including both mesopores and micropores. The catalyst includes a crystalline aluminosilicate and a metal. The catalyst is highly active at a low temperature. According to the method, C9+ aromatic compounds substituted with at least one C2+ alkyl group as by-products formed by xylene production can be selectively dealkylated and converted to BTX, etc. on a large scale within a short time. In addition, the method is an environmentally friendly process entailing reduced waste treatment cost when compared to conventional mesitylene production methods. Therefore, high value-added mesitylene can be separated from low value-added C9+ aromatic compounds at lower cost compared to conventional methods. Furthermore, the supported metal catalyst is easy to recover after dealkylation and is recyclable, thereby contributing to reduced cost.

    摘要翻译: 公开了使用双峰多孔脱烷基化催化剂在低温下选择性烷基转移烷基取代的C 9+芳族化合物的方法。 催化剂具有包括中孔和微孔的双峰多孔结构。 催化剂包括结晶硅铝酸盐和金属。 该催化剂在低温下具有高活性。 根据该方法,通过二甲苯生成形成的作为副产物的至少一个C2 +烷基取代的C9 +芳香族化合物可以选择性地脱烷基化并在短时间内大规模转化为BTX等。 此外,与常规的均三甲苯生产方法相比,该方法是一种环境友好的方法,降低了废物处理成本。 因此,与常规方法相比,高附加值的均三甲苯可以以低成本的C9 +芳族化合物分离。 此外,负载金属催化剂在脱烷基化后容易回收并且是可回收的,从而有助于降低成本。

    Nitride semiconductor light-emitting device and method for manufacturing the same
    25.
    发明授权
    Nitride semiconductor light-emitting device and method for manufacturing the same 有权
    氮化物半导体发光器件及其制造方法

    公开(公告)号:US08030680B2

    公开(公告)日:2011-10-04

    申请号:US11705433

    申请日:2007-02-13

    申请人: Tae-Yun Kim

    发明人: Tae-Yun Kim

    IPC分类号: H01L33/00

    摘要: Disclosed are a nitride semiconductor light emitting device and a method for manufacturing the same. The nitride semiconductor light emitting device includes a first nitride layer, an active layer including at least one delta-doping layer on the first nitride layer through delta-doping, and a second nitride layer on the active layer.

    摘要翻译: 公开了一种氮化物半导体发光器件及其制造方法。 氮化物半导体发光器件包括第一氮化物层,通过δ掺杂在第一氮化物层上包括至少一个δ-掺杂层的活性层和活性层上的第二氮化物层。

    Portable terminal
    26.
    发明申请
    Portable terminal 审中-公开
    便携式终端

    公开(公告)号:US20070075679A1

    公开(公告)日:2007-04-05

    申请号:US11481828

    申请日:2006-07-07

    IPC分类号: H02J7/00

    摘要: A portable terminal includes a main body, cradle mounted to the main body, and a covering with one portion fixed on the cradle, the covering surrounding at least one surface of the main body. Accordingly, the appearance of the portable terminal may be diversified by providing the covering using the cradle that can be mounted to the main body of the portable terminal. Thus, various textures and colors can be provided according to the structure of the covering, and the covering can be separated from the cradle, thereby contributing to the diversification of the design of the portable terminal.

    摘要翻译: 便携式终端包括主体,安装在主体上的支架和固定在支架上的一部分的覆盖物,覆盖物围绕主体的至少一个表面。 因此,便携式终端的外观可以通过使用可安装到便携式终端的主体的支架提供覆盖物来实现多样化。 因此,可以根据覆盖物的结构提供各种纹理和颜色,并且覆盖物可以与托架分离,从而有助于便携式终端的设计的多样化。

    Pulse control device
    27.
    发明申请
    Pulse control device 有权
    脉冲控制装置

    公开(公告)号:US20070069795A1

    公开(公告)日:2007-03-29

    申请号:US11477591

    申请日:2006-06-30

    IPC分类号: G06F1/04

    摘要: A pulse control device is maintained with a constant pulse width corresponding to a change of process or temperature. The pulse control device comprises a fuse set for selectively outputting a delay increase signal and a delay decrease signal that have a different state based on a cutting or non-cutting state of a fuse on which information on a change of process is programmed, and a pulse generator provided with a plurality of delay cells with predetermined time delay for selectively increasing or decreasing the number of the plurality of delay cells depending on the delay increase signal and the delay decrease signal to generate an internal clock with a pulse width corresponding to the number of the increased or decreased delay cells.

    摘要翻译: 维持脉冲控制装置,其具有对应于过程或温度变化的恒定脉冲宽度。 所述脉冲控制装置包括用于选择性地输出延迟增加信号和延迟减小信号的熔丝,所述延迟增加信号和延迟减小信号基于其上编程关于过程改变的信息的熔丝的切割或非切割状态具有不同的状态,以及 脉冲发生器,其具有预定的时间延迟的多个延迟单元,用于根据所述延迟增加信号和所述延迟减小信号选择性地增加或减少所述多个延迟单元的数量,以产生具有对应于所述数量的脉冲宽度的内部时钟 的延迟细胞增加或减少。

    Delay locked loop in semiconductor memory device and method for generating divided clock therein

    公开(公告)号:US20060171497A1

    公开(公告)日:2006-08-03

    申请号:US11320847

    申请日:2005-12-30

    IPC分类号: H03D3/24

    CPC分类号: G11C7/1072 G11C7/222

    摘要: Provided are a delay locked loop (DLL) and a method for generating a divided clock therein. In the DLL, a width of a reference frequency for phase comparison can be changed depending on a magnitude of an operating frequency. In the DLL, a clock buffer receives a clock equal to an external clock and generates an internal clock. An enable clock generator generates a 1-period enable clock or a 2-period enable clock using a command signal generated for performing a predefined operation. The command signal is generated according to an address command signal inputted from an exterior. A clock divider divides the internal clock to generate a divided clock. The divided clock is controlled by the 1-period enable clock or the 2-period enable clock, such that the divided clock is made to be a 1-period based dividing clock or a 2-period based dividing clock.

    Continuous process for the preparation of optically pure decahydroisoquinolinecarboxamide
    29.
    发明授权
    Continuous process for the preparation of optically pure decahydroisoquinolinecarboxamide 失效
    用于制备光学纯的十氢异喹啉甲酰胺的连续方法

    公开(公告)号:US06586597B1

    公开(公告)日:2003-07-01

    申请号:US09857566

    申请日:2001-09-04

    IPC分类号: C07D21716

    CPC分类号: C07D217/26

    摘要: The present invention relates to a continuous process for the preparation of [3S-(3&agr;, 4a&bgr;, 8a&bgr;)]-N-tert-butyl-decahydro-3-isoquinolinecarboxamide, an intermediate useful in the synthesis of compounds for the treatment of viral diseases, from the reduction of N-tert-butyl-1,2,3,4-tetrahydro-3(S)-isoquinolinecarboxamide with a noble metal catalyst supported on inorganic oxide carrier in a fixed bed reaction system, with a high optical yield.

    摘要翻译: 本发明涉及用于制备用于治疗病毒性疾病的化合物的中间体的[3S-(3α,4β,8βa)] -N-叔丁基 - 十氢-3-异喹啉甲酰胺的连续方法 由固定床反应体系中负载在无机氧化物载体上的贵金属催化剂还原N-叔丁基-1,2,3,4-四氢-3(S) - 异喹啉甲酰胺,具有高的光学收率。

    Continuous process for the production of optically pure (S)-beta-hydroxy-gamma-butyrolactone
    30.
    发明授权
    Continuous process for the production of optically pure (S)-beta-hydroxy-gamma-butyrolactone 失效
    用于生产光学纯(S)-β-羟基-γ-丁内酯的连续方法

    公开(公告)号:US06429319B1

    公开(公告)日:2002-08-06

    申请号:US09767668

    申请日:2001-01-22

    IPC分类号: C07D30756

    CPC分类号: C07D307/33

    摘要: Disclosed is a process for the production of optically pure (S)-beta-hydroxy-gamma-butyrolactone through the hydrogenation of substituted carboxylic acid derivatives. A solution containing 1 to 50% by weight of a substituted carboxylic acid derivative is fed at a WHSV of 0.1 to 10 h−1, to a fixed bed reactor which is filled with a catalyst and maintained at a reaction temperature of 50 to 550° C. under a halogen partial pressure of 15 to 5,500 psig. The catalyst is composed of a noble metal as a catalytically effective ingredient which is impregnated in an inorganic oxide as a support. The molar ratio of the hydrogen to the substituted carboxylic acid derivative is maintained at a molar ratio of 1:1 to 10:1. The process can produce optically pure (S)-beta-hydroxy-gamma-butyrolactone with higher purities at higher yields than can conventional techniques. In addition to being relatively simple and environmentally friendly, the process is so economically favorable as to apply to industrial production.

    摘要翻译: 公开了通过取代的羧酸衍生物的氢化制备光学纯的(S)-β-羟基-γ-丁内酯的方法。 将含有1至50重量%的取代的羧酸衍生物的溶液以0.1至10小时-1的WHSV加入到填充有催化剂并保持在反应温度为50至550℃的固定床反应器中 C.在15至5,500psig的卤素分压下。 催化剂由作为载体的无机氧化物中浸渍的催化有效成分的贵金属组成。 氢与取代的羧酸衍生物的摩尔比保持在1:1至10:1的摩尔比。 该方法可以以比常规技术更高的产率产生具有更高纯度的光学纯(S)-β-羟基-γ-丁内酯。 除了相对简单和环保,该工艺在经济上也适用于工业生产。