Method for producing optically active erythro-3-amino-2-hydroxybutyric
esters and acids thereof
    51.
    发明授权
    Method for producing optically active erythro-3-amino-2-hydroxybutyric esters and acids thereof 失效
    光学活性红-3-氨基-2-羟基丁酸酯及其酸的制备方法

    公开(公告)号:US6063955A

    公开(公告)日:2000-05-16

    申请号:US230908

    申请日:1999-02-03

    摘要: A method for producing an optically active erythro-3-amino-2-hydroxybutyric ester as an important intermediate of pharmaceutical agents, specifically HIV protease inhibitor, in high purity and in high yield. The method includes producing an optically active erythro-3-amino-2-hydroxybutyric ester by oxidizing the hydroxyl group at the 2-position of an optically active 3-amino-2-hydroxybutyric ester, optically active at the 3-position, as represented by formula (I): ##STR1## (wherein R.sup.1 represents a phenyl group or a cyclohexyl group; R.sup.2 represents a protective group and R.sup.3 represents an unsubstituted or substituted alkyl residue; the steric configuration of *1 represents S configuration or R configuration), and then reducing erythro-selectively the resulting product by using aluminum alkoxide.

    摘要翻译: PCT No.PCT / JP97 / 03228 Sec。 一九九九年二月三日 102(e)1999年2月3日PCT PCT 1997年9月12日PCT公布。 公开号WO97 / 03228 日期:1998年3月19日以高纯度和高产率制备光学活性的红 - 3-氨基-2-羟基丁酸酯作为药剂,特别是HIV蛋白酶抑制剂的重要中间体的方法。 该方法包括通过氧化光学活性的3-氨基-2-羟基丁酸酯的2-位上的3-位氨基-2-羟基丁酸酯的光学活性来制备光学活性的3-氨基-2-羟基丁酸酯,如3-表示的光学活性的3-氨基-2-羟基丁酸酯 通式(I)表示:(式中,R 1表示苯基或环己基,R 2表示保护基,R 3表示未取代或取代的烷基,* 1的空间构型表示S构型或R构型) 通过使用烷氧化铝红选择所得产物。

    Apparatus for preventing flow noise in throttle valve
    53.
    发明授权
    Apparatus for preventing flow noise in throttle valve 失效
    节流阀防止流动噪音的装置

    公开(公告)号:US5970963A

    公开(公告)日:1999-10-26

    申请号:US34363

    申请日:1998-03-04

    IPC分类号: F02M35/12 F02M29/04

    摘要: An apparatus for preventing flow noise which suppresses the noise caused at the time of opening of a throttle valve provided in an intake passage of an internal combustion engine etc. At the downstream side of a pair of clearances formed at the top and bottom when the throttle valve opens, a means is provided acting on the flows of air passing through at least one of the clearances to reduce the flow rate and acting on the flows to cause the point of convergence of the flows of air passing through the pair of clearances to shift to the downstream side.

    摘要翻译: 一种用于防止流量噪声的装置,其抑制在设置在内燃机的进气通道中的节流阀打开时引起的噪音。在形成在顶部和底部的一对间隙的下游侧,当节气门 阀门打开时,提供作用于通过至少一个间隙的空气流动的装置,以减小流量并作用在流动上,以使通过一对间隙的空气流收敛点移动 到下游。

    Fuel injection type rotary piston engine
    55.
    再颁专利
    Fuel injection type rotary piston engine 失效
    燃油喷射式旋转活塞发动机

    公开(公告)号:USRE29759E

    公开(公告)日:1978-09-12

    申请号:US692384

    申请日:1976-06-03

    申请人: Kenichi Yamamoto

    发明人: Kenichi Yamamoto

    IPC分类号: F02B53/04 F02B53/10 F02B75/12

    摘要: Fuel injection type rotary piston engine having side air intake ports formed in the side housings and peripheral air intake port or ports formed in the rotor housing, said side air intake ports being closed during light load or low speed operation of the engine while the peripheral air intake ports are still open, the peripheral ports having an effective passage area which is small in relation to that of the side ports.

    Image display device
    57.
    发明授权
    Image display device 有权
    图像显示装置

    公开(公告)号:US08633950B2

    公开(公告)日:2014-01-21

    申请号:US12961639

    申请日:2010-12-07

    IPC分类号: G09G5/10 G09G5/02 H04N5/202

    摘要: An image display device for special uses which improves a color resolution of a particular color and increases a color reproducibility is provided. In the image display device, an area in which a gradient is gentle is provided to a partial region of a gamma curve denoted by a relationship of an input value (gray level) and an output value (luminance relative value) so that chromaticity points on chromaticity coordinates are unevenly distributed, thereby improving a chromatic resolving power (color resolution) of a particular color. In this manner, the color reproducibility of special monitors which display images of a particular color range represented by a monitor for remote metical care and a monitor for surgical operation can be improved.

    摘要翻译: 提供了用于特殊用途的图像显示装置,其提高特定颜色的颜色分辨率并提高颜色再现性。 在图像显示装置中,对于由输入值(灰度)和输出值(亮度相对值)的关系表示的伽马曲线的部分区域,将梯度平缓的区域设置为使得色度点 色度坐标不均匀,从而提高了特定颜色的色彩分辨率(色彩分辨率)。 以这种方式,可以提高显示由用于远程心理护理的监视器表示的特定颜色范围的图像的特殊监视器的颜色再现性和用于外科手术的监视器的颜色再现性。

    Frame structure for vehicle
    60.
    发明授权
    Frame structure for vehicle 有权
    车架结构

    公开(公告)号:US08317258B2

    公开(公告)日:2012-11-27

    申请号:US12826517

    申请日:2010-06-29

    IPC分类号: B62D25/00

    CPC分类号: B62D25/00 B62D21/15

    摘要: A frame body comprises a first face portion on which a compressive force acts in case a load is applied, a second face portion on which a tensional force acts, and third and fourth face portions which connect the first and second face portions. The third and fourth face portions are respectively equipped with a reinforcing member which comprises a base portion which is away from the frame body and plural base portions which project from the base portion and are joined to the frame body. The convex portions have plural convexities which are arranged so as to extend both in the longitudinal and sectional directions of a frame.

    摘要翻译: 框架体包括第一面部分,在施加负载的情况下,压缩力作用在其上,施加张力的第二面部分和连接第一和第二面部的第三和第四面部分。 第三和第四面部分别配备有加强构件,该加强构件包括远离框架体的基部和从基部突出并且连接到框体的多个基部。 凸部具有多个凸部,其被布置成在框架的纵向和横向上均延伸。