Magnetic head slider
    71.
    发明授权

    公开(公告)号:US06657820B2

    公开(公告)日:2003-12-02

    申请号:US10199200

    申请日:2002-07-19

    IPC分类号: G11B560

    CPC分类号: G11B5/6005

    摘要: A magnetic head slider has a magnetic head mounting surface holding a magnetic head, to be kept closest to a magnetic disk when the magnetic head slider is in operation, a slider rail surface contiguous with a surface, on the side of an air inlet end, and opposite sides of a portion, near an air outlet end, of the magnetic head and extending near to the air outlet end, a step bearing surface formed at least on the side of the air inlet end of the slider rail surface, and a negative-pressure groove formed so as to surround the step bearing surface. The magnetic head mounting surface is typically formed on an alumina protective film protecting the magnetic head. The variation of the flying height of the magnetic head slider with respect to a rolling direction is reduced and a proximity ability to approach the magnetic disk is improved.

    Stippling instrument
    72.
    发明授权
    Stippling instrument 有权
    发条仪器

    公开(公告)号:US06439793B1

    公开(公告)日:2002-08-27

    申请号:US09969818

    申请日:2001-10-03

    IPC分类号: A47C1330

    CPC分类号: B43K8/06 B43K5/00

    摘要: A stippling tool comprising includes a cylindrical main body defining an ink containing chamber therein, a slender ink transfer member having a proximal end portion to which ink in the ink containing chamber is supplied, and a distal end portion extending to an opening of the main body, in which ink is transferred from the proximal end portion to the distal end portion, and a porous elastic stippling member provided on the distal end portion of the ink transfer member, through which the ink permeates. The stippling member having a stippling distal end surface outwardly projecting in a curved shape, and the distal end surface being elastically deformed by a stroke pressure.

    摘要翻译: 一种点状工具,包括:在其中限定墨水容纳室的圆柱形主体,具有供给墨水容纳室中的墨水的基端部的细长的墨水转移构件,以及延伸到主体的开口的前端部 其中油墨从基端部分转移到远端部分,以及设置在油墨转印部件的远端部分上的多孔弹性点状部件,油墨渗透通过该多孔弹性点状部件。 点状构件具有向外突出的弯曲形状的尖端远端面,并且前端面由行程压力弹性变形。

    D-pentofuranose derivatives and process for preparing the same
    73.
    发明授权
    D-pentofuranose derivatives and process for preparing the same 失效
    D-呋喃糖衍生物及其制备方法

    公开(公告)号:US5880294A

    公开(公告)日:1999-03-09

    申请号:US981814

    申请日:1998-01-06

    CPC分类号: C07H9/04 C07H13/04 C07H19/04

    摘要: The present invention relates to D-pentofuranose derivatives represented by the following formulas (1) through (4): ##STR1## (wherein A represents a chlorobenzoyl group; R.sup.1 represents a hydrogen atom, an aliphatic lower acyl group, a substituted or unsubstituted benzoyl group; each of X and Y represents a lower alkyl group; Z represents an ethynyl group or tri-lower alkyl silylethynyl group; the sugar moiety in formula (1) represents xylose; and the sugar moiety of each of formulas (3) and (4) represents ribose). The present invention also relates to a process for preparing the compound (2) characterized by oxidizing the compound of formula (1) with a hypochlorite in the presence of a catalytic amount of 2,2,6,6-tetramethylpiperidinoxy compound, and these compounds are useful as intermediates in the synthesis of 3'-C-substituted ribonucleoside derivatives having excellent antitumor activities.

    摘要翻译: PCT No.PCT / JP97 / 01427 Sec。 371日期:1998年1月6日 102(e)日期1998年1月6日PCT 1997年4月24日PCT公布。 公开号WO97 / 43295 日期:1997年11月20日本发明涉及由下式(1)〜(4)表示的D-呋喃糖衍生物:< IMAGE>(2)< IMAGE>(3) )(其中A表示氯苯甲酰基; R1表示氢原子,脂肪族低级酰基,取代或未取代的苯甲酰基; X和Y各自表示低级烷基; Z表示乙炔基或三低级烷基甲硅烷基乙炔基 式(1)中的糖部分表示木糖;式(3)和(4)各自的糖部分表示核糖)。 本发明还涉及一种制备化合物(2)的方法,其特征在于在催化量的2,2,6,6-四甲基哌啶氧基化合物存在下,用次氯酸盐氧化式(1)化合物,这些化合物 可用作合成具有优异抗肿瘤活性的3'-取代核糖核苷衍生物的中间体。

    Adhesive silicone rubber compositions
    74.
    发明授权
    Adhesive silicone rubber compositions 失效
    粘合硅橡胶组合物

    公开(公告)号:US5405896A

    公开(公告)日:1995-04-11

    申请号:US163556

    申请日:1993-12-09

    摘要: An adhesive silicone rubber composition of addition reaction curing type comprising (a) an organopolysiloxane containing an alkenyl group; (b) an organohydrogenpolysiloxane having at least one hydrogen atom directly attached to a silicon atom in a molecule; (c) an addition reaction catalyst; and (d) an adhesive agent selected from compounds of the following formulae (I), (II) and (III):A-(D-B).sub.x -D-A (I)C-(B-D).sub.x -B-C (II)A-E (III)wherein each of A and B is a silane or siloxane group, each group having at least one hydrogen atom directly attached to a silicon atom and an optional substituent which is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 8 carbon atoms attached to the same or different silicon atom, A being monovalent and B being divalent,each of C and D is a group having contained therein at least one member selected from the group consisting of a substituted or unsubstituted aryl group, a substituted or unsubstituted arylene group, ##STR1## and an optional substituent which is selected from alkyl or alkylene groups, C being monovalent and D being divalent,E is a monovalent group as defined for C, with the proviso that the total number of atoms in E other than hydrogen and halogen atoms is at least 8, andletter x is 0 or a positive number,said adhesive silicone rubber composition giving a cured product that does not adhere to metal.

    摘要翻译: 一种加成反应固化型粘合性硅橡胶组合物,其包含(a)含有烯基的有机聚硅氧烷; (b)具有至少一个氢原子的有机氢聚硅氧烷,其直接连接到分子中的硅原子上; (c)加成反应催化剂; 和(d)选自下式(I),(II)和(III)的化合物的粘合剂:A-(DB)xDA(I)C-(BD)xBC(II)AE(III) 的A和B是硅烷或硅氧烷基团,每个基团具有至少一个与硅原子直接相连的氢原子和任选的取代基,其是具有1-8个碳原子的取代或未取代的一价烃基彼此相连或不同 硅原子,A为一价,B为二价,C和D各自为含有至少一个选自取代或未取代的芳基,取代或未取代的亚芳基,取代或未取代的亚芳基,和 选自烷基或亚烷基的任选的取代基,C为一价,D为二价,E为C定义的一价基团,条件是除氢和卤素原子以外的E中的原子总数至少为 8,字母x为0或正数, 所述粘合性硅橡胶组合物产生不粘附到金属上的固化产物。

    Method of chucking semiconductor wafers
    75.
    发明授权
    Method of chucking semiconductor wafers 失效
    夹紧半导体晶片的方法

    公开(公告)号:US5335457A

    公开(公告)日:1994-08-09

    申请号:US966484

    申请日:1992-10-26

    CPC分类号: H01L21/6838

    摘要: A method of chucking semiconductor wafers, in which a silicone elastic layer with high flatness is formed on the surface of a hard substrate having fine through-holes for vacuum chucking. Next fine through-holes in the silicone elastic layer, are provided, each through-hole communicating with the fine through-holes of the hard substrate. Next a semi-conductor wafer is held on the hard substrate by vacuum chucking from the back side of the substrate, so as to hold the semiconductor wafer securely on the substrate only by surface adhesion of the silicone elastic layer during polishing of the wafer. This method does not require wax or similar adhesive for holding the semiconductor wafer on the hard surface during the polishing process, and can realize a high-precision and high-quality surface polishing process for the semiconductor wafers.

    摘要翻译: 一种夹持半导体晶片的方法,其中在具有用于真空吸附的精细通孔的硬质基板的表面上形成具有高平坦度的硅氧烷弹性层。 在硅弹性层中的下一个细小的通孔中,每个通孔与硬质基底的细通孔相通。 接下来,半导体晶片通过从基板的背面真空夹持而保持在硬质基板上,以便仅在晶片抛光期间通过硅树脂弹性层的表面粘合将半导体晶片牢固地保持在基板上。 该方法不需要在抛光过程中将半导体晶片保持在硬表面上的蜡或类似的粘合剂,并且可以实现用于半导体晶片的高精度和高质量的表面抛光工艺。

    Tri-O-acetyl-2-alkynyladenosines
    76.
    发明授权
    Tri-O-acetyl-2-alkynyladenosines 失效
    三-O-乙酰基-2- alkynyladenosines

    公开(公告)号:US5283327A

    公开(公告)日:1994-02-01

    申请号:US655354

    申请日:1991-04-17

    IPC分类号: C07H19/16 C07H19/167

    CPC分类号: C07H19/16 Y02P20/55

    摘要: The present invention relates to a novel compound represented by the following formula [I] which is useful as a synthetic intermediate of a 2-alkynyladenosine.The present invention also relates to a process for producing the compound and a process for producing a 2-alkynyladenosine [IV] by way of the compound.Further, the present invention relates to a 2-alkynyladenosine derivative represented by the following formula [V] having excellent storage stability and, to a method of storing the 2-alkynyladenosine in the form of that derivative. ##STR1## wherein R.sup.1 through R.sup.4 represent a hydrogen atom or a protective group, and n denotes an integer of 1 to 15, provided that R.sup.1 through R.sup.4 do not represent a hydrogen atom simultaneously.

    摘要翻译: PCT No.PCT / JP90 / 00807 Sec。 371日期:1991年4月17日 102(e)中的日期1991年4月17日提交的PCT 1990年6月20日的PCT公布。 出版物WO90 / 15812 PCT 日本1990年12月27日。本发明涉及可用作2-炔基腺苷合成中间体的下式(I)表示的新化合物。 本发明还涉及该化合物的制备方法和通过该化合物制备2-炔基腺苷(Ⅳ)的方法。 此外,本发明涉及具有优异储存稳定性的下式(V)表示的2-链炔基腺苷衍生物,以及以该衍生物的形式存储2-炔基腺苷的方法。 (*化学结构*)(*化学结构*)其中R1至R4表示氢原子或保护基,n表示1至15的整数,条件是R1至R4同时不表示氢原子。

    Method of producing a both-side electrogalvanized steel strip in a
chloride bath
    77.
    发明授权
    Method of producing a both-side electrogalvanized steel strip in a chloride bath 失效
    在氯化浴中生产双面电镀锌钢带的方法

    公开(公告)号:US4804444A

    公开(公告)日:1989-02-14

    申请号:US104524

    申请日:1987-09-30

    CPC分类号: C25D5/10 C25D5/028 C25D5/36

    摘要: A method of producing both-side electrolytically zinc plated steel strips utilizing a chloride bath including the steps of plating one side of the steel strip in a first plating cell, wetting the thus one-side plated steel strip in a wetting tank, and then plating the other nonplated side of the steel strip in a second plating cell. The method provides for limiting the concentration of zinc in the wetting solution to a range of 0.1-50 g/l so as to improve the zinc coating coverage, glossiness and corrosion resistance.

    摘要翻译: 一种利用氯化浴制造双面电解镀锌钢带的方法,包括以下步骤:将钢带的一面镀在第一电镀槽中,将润湿槽中的这样一面镀覆的钢带润湿,然后电镀 在第二电镀单元中的钢带的另一个非电镀侧。 该方法提供了将润湿溶液中的锌浓度限制在0.1-50g / l的范围内,以提高锌的覆盖范围,光泽度和耐腐蚀性。

    Thermoplastic elastomer composition and process for preparation thereof
    80.
    发明授权
    Thermoplastic elastomer composition and process for preparation thereof 失效
    热塑性弹性体组合物及其制备方法

    公开(公告)号:US4650830A

    公开(公告)日:1987-03-17

    申请号:US615244

    申请日:1984-05-30

    摘要: Disclosed is a thermoplastic elastomer composition excellent in the injection fusion bondability and the surface gloss, which comprises (1) an amorphous ethylene/.alpha.-olefin copolymer (a) and (2) (i) a lowly crystalline copolymer (b) of propylene with an .alpha.-olefin having at least 4 carbon atoms, (ii) a polymer (d) composed mainly of 1-butene or (iii) a combination of the copolymer (b) or the polymer (d) with a crystalline polymer (c) composed mainly of propylene, wherein the component (1) is present in an amount of 10 to 95% by weight based on the total amount of the components (1) and (2), the component (2) is present in an amount of 5 to 90% by weight based on the total amount of the components (1) and (2), and the component (1) or the components (1) and (2) are partially crosslinked.The partial crosslinking is effected by grafting of a radical-polymerizable monomer having at least two polymerizable groups.

    摘要翻译: 公开了注射熔融粘合性和表面光泽度优异的热塑性弹性体组合物,其包括(1)无定形乙烯/α-烯烃共聚物(a)和(2)(i)低结晶性丙烯共聚物(b) 具有至少4个碳原子的α-烯烃,(ii)主要由1-丁烯组成的聚合物(d)或(iii)共聚物(b)或聚合物(d)的组合与结晶聚合物(c) 主要由丙烯组成,其中组分(1)以组分(1)和(2)的总量计为10至95重量%的量存在,组分(2)的存在量为 基于组分(1)和(2)的总量和组分(1)或组分(1)和(2)的5-90重量%部分交联。 部分交联通过接枝具有至少两个可聚合基团的可自由基聚合的单体来实现。