Semiconductor device having a through-hole of a two-level structure
    51.
    发明授权
    Semiconductor device having a through-hole of a two-level structure 失效
    具有两层结构的通孔的半导体装置

    公开(公告)号:US06246085B1

    公开(公告)日:2001-06-12

    申请号:US09019707

    申请日:1998-02-06

    申请人: Naoyuki Yoshida

    发明人: Naoyuki Yoshida

    IPC分类号: H01L2976

    摘要: A semiconductor memory device comprises a bottom electrode of a capacitor connected to a source region of a semiconductor substrate through a contact plug formed in a portion of a through-hole. The remaining portion of the through-hole has a side-wall film, on which a portion of the bottom electrode film is disposed. The two-level structure of the through-hole improves the step coverage of the side-wall film and avoids over-etching of the silicon substrate.

    摘要翻译: 半导体存储器件包括通过形成在通孔的一部分中的接触插塞连接到半导体衬底的源极区域的电容器的底部电极。 通孔的剩余部分具有侧壁膜,底部电极膜的一部分设置在该侧壁膜上。 通孔的两层结构提高了侧壁膜的台阶覆盖率,避免了硅衬底的过度蚀刻。

    Indole derivatives having a 2-phenyl-ethanolamino-substituted lower
alkyl group at the 2-or 3-position thereof
    52.
    发明授权
    Indole derivatives having a 2-phenyl-ethanolamino-substituted lower alkyl group at the 2-or 3-position thereof 失效
    在其2-或3-位具有2-苯基 - 乙醇氨基取代的低级烷基的吲哚衍生物

    公开(公告)号:US5817689A

    公开(公告)日:1998-10-06

    申请号:US836983

    申请日:1997-05-29

    摘要: An indole derivative of the formula: ##STR1## wherein R.sub.1 is lower alkoxy, lower alkoxycarbonyl-lower alkoxy, carboxy-lower alkoxy, lower alkoxycarbonyl, phenyl-lower alkoxy, lower alkyl being optionally substituted by hydroxy, di-lower alkylaminosulfonyl, etc., R.sub.2 is hydrogen, halogen, lower alkoxy, lower alkoxycarbonyl-lower alkoxy, carboxy-lower alkoxy, etc., R.sub.3 is hydrogen or lower alkyl, R.sub.4 is halogen or trifluoromethyl, R.sub.5 is lower alkyl, or a salt thereof, these compounds being potent .beta..sub.3 -adrenergic receptor-stimulating agent with excellent adrenoceptor selectivity, and being useful in the prophylaxis or treatment of obesity or diabetes mellitus.

    摘要翻译: PCT No.PCT / JP95 / 02400 Sec。 371日期1997年5月29日 102(e)日期1997年5月29日PCT提交1995年11月27日PCT公布。 WO96 / 16938 PCT公开号 日期:1996年6月6日具有下式的吲哚衍生物:1-低级烷氧基,羧基 - 低级烷氧基,低级烷氧基羰基,苯基 - 低级烷氧基,任选被羟基取代的低级烷基,二 - 低级烷基氨基磺酰基等,R 2 R 3是氢或低级烷基,R 4是卤素或三氟甲基,R 5是低级烷基或其盐,这些化合物是有效的β 具有优良肾上腺素受体选择性的3-肾上腺素能受体刺激剂,可用于预防或治疗肥胖症或糖尿病。

    Optically active cyclopentenols and process for preparing the same
    55.
    发明授权
    Optically active cyclopentenols and process for preparing the same 失效
    光学活性环糊精及其制备方法

    公开(公告)号:US5107039A

    公开(公告)日:1992-04-21

    申请号:US567013

    申请日:1990-08-13

    CPC分类号: C12P41/004 C07C35/06

    摘要: Optically active cyclopentenols are here disclosed which are represented by the formula (I) ##STR1## (wherein R is a hydrogen atom or an acyl group having 2 to 15 carbon atoms, and the sign * denotes a chiral carbon atom).The optically active cyclopentenols can be prepared by a process which comprises the step of carrying out a transesterification between (.+-.)-cyclopentenol represented by the formula (IV) ##STR2## and triglyceride or vinyl ester by the use of esterase to obtain an optically active cyclopentenol represented by the formula (II) ##STR3## and an optically active cyclopentenol derivative represented by the formula (III) ##STR4## (wherein R' is an acyl group having 2 to 15 carbon atoms, and the sign * denotes a chiral carbon atom) which is a derivative of the enantiomer of the cyclopentenol (II); or alternatively, by another process which comprises the step of hydrolysis or alcoholysis of an optically active cyclopentenol derivative represented by the formula (III) ##STR5## (wherein R' is an acyl group having 2 to 15 carbon atoms, and the sign * denotes a chiral carbon atom) to obtain an optically active cyclopentenol represented by the formula (II) ##STR6## having the same absolute configuration as in the aforesaid derivative.

    Process for producing optically active hydroxy lactones
    56.
    发明授权
    Process for producing optically active hydroxy lactones 失效
    生产光学活性羟基试剂的方法

    公开(公告)号:US5084392A

    公开(公告)日:1992-01-28

    申请号:US626290

    申请日:1990-12-12

    IPC分类号: C12P17/04 C12P17/06 C12P41/00

    摘要: The invention provides a method for producing an optically active hydroxy lactone which comprises reacting under substantially anhydrous conditions and in the presence of an enzyme an ester and a racemic compound represented by the general formula (I): ##STR1## wherein n is 0 or 1, any one of R.sup.1 and R.sup.2 is a hydroxy group, and R.sup.2 =R.sup.3 =H or R.sup.2 =R.sup.3 =CH.sub.3 when R.sup.1 is the hydroxy group, and R.sup.1 =R.sup.3 =H when R.sup.2 is the hydroxy group, to effect a transesterification reaction, and resolving to an optically active alcohol which has R- or S-configuration and the ester of the symmetric alcohol.

    METAL SALT OF CROSSLINKED CELLULOSE DERIVATIVE
    58.
    发明申请
    METAL SALT OF CROSSLINKED CELLULOSE DERIVATIVE 有权
    金属盐的交联纤维素衍生物

    公开(公告)号:US20100317844A1

    公开(公告)日:2010-12-16

    申请号:US12521524

    申请日:2007-12-26

    IPC分类号: C07H23/00

    摘要: The invention provides a metal salt of a crosslinked cellulose derivative represented by the following formula (I), wherein the degree of substitution of the hydroxyl group of glucose unit of the crosslinked cellulose derivative by a functional group a is 1 or more. R—O-A  (I) {In the formula (I), R represents a crosslinked cellulose residue and A represents a functional group a having cation-exchange ability.}

    摘要翻译: 本发明提供由下式(I)表示的交联纤维素衍生物的金属盐,其中交联的纤维素衍生物的官能团a的葡萄糖单元的羟基的取代度为1以上。 R-O-A(I){式(I)中,R表示交联纤维素残基,A表示具有阳离子交换能力的官能团。