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    • 5. 发明授权
    • Liquid crystal composition
    • 液晶组成
    • US5262084A
    • 1993-11-16
    • US819659
    • 1992-01-13
    • Shinich SawadaTetsuya MatsushitaToyoshiro IsoyamaHideo Saito
    • Shinich SawadaTetsuya MatsushitaToyoshiro IsoyamaHideo Saito
    • C09K19/30C09K19/42C09K19/46C09K19/34C09K19/52
    • C09K19/46C09K19/3003C09K19/42
    • The present invention provides a liquid crystal composition having a high clearing point, a low viscosity, a desired .DELTA.n (n.sub.e -n.sub.o) and an improved steepness of voltage-transmittance properties in the display of a supertwisted birefringence effect mode, and a liquid crystal display element having excellent contrast in which the liquid crystal composition is utilized.The present invention is directed to a liquid crystal composition characterized by containing a first component comprising a compound represented by the general formula ##STR1## wherein R.sup.1 is an alkenyl group having 2 to 8 carbon atoms, and a second component comprising a compound represented by the formula ##STR2## wherein R.sup.2 is an alkyl group having 1 to 8 carbon atoms, R.sup.3 is H or F, R.sup.4 is an alkoxy group, an alkyl group having 1 to 8 carbon atoms, F or a CN group.Furthermore, the present invention is also directed to a liquid crystal display element using the aforesaid liquid crystal composition.
    • PCT No.PCT / JP88 / 01266 Sec。 371日期1989年8月8日 102(e)日期1989年8月8日PCT提交1988年12月14日PCT公布。 出版物WO89 / 05846 日期:1989年6月29日。本发明提供了一种具有高透明度,低粘度,期望的DELTA n(ne-no)的液晶组合物,并且在显示超扭曲双折射的情况下提高了电压 - 透射率特性的陡度 效果模式和具有优异对比度的液晶显示元件,其中液晶组合物被利用。 本发明涉及一种液晶组合物,其特征在于含有第一组分,该第一组分包含由通式“IMAGE”表示的化合物,其中R 1是具有2至8个碳原子的烯基,第二组分包含由 式中,R 2为碳原子数为1〜8的烷基,R 3为H或F,R 4为烷氧基,碳原子数1〜8的烷基,F或CN基。 此外,本发明还涉及使用上述液晶组合物的液晶显示元件。
    • 7. 发明授权
    • Liquid crystal composition
    • 液晶组成
    • US5683624A
    • 1997-11-04
    • US573141
    • 1995-12-15
    • Yasuko SekiguchiEtsuo NakagawaToyoshiro IsoyamaTetsuya Matsushita
    • Yasuko SekiguchiEtsuo NakagawaToyoshiro IsoyamaTetsuya Matsushita
    • C09K19/30C09K19/42C09K19/46C09K19/34C09K19/12
    • C09K19/42C09K19/3001C09K19/46
    • A LC material for TN and STN modes having a comparatively high .DELTA.n and a low viscosity is provided by a LC composition comprising a first component (formula I-c), a second component (formula II-c) and a third component (formula III or IV): ##STR1## wherein R.sup.1 is C.sub.1-10 alkyl; R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are C.sub.1-10 alkyl or C.sub.2-10 alkenyl in which alkyl and alkenyl groups one or two non-adjacent methylenes may be replaced by --O--; R.sup.6 is C.sub.1-10 alkyl, alkoxy or alkoxymethyl; Z.sup.1 and Z.sup.3 are --CH.sub.2 CH.sub.2 --, --COO-- or a single bond; Z.sup.2 is --C.tbd.C--, --COO--, --CH.sub.2 CH.sub.2 -- or a single bond; Z.sup.4 is --C.tbd.C--, --COO-- or a single bond; Q.sup.1 is H or F; A.sup.2, B, C and E are trans-1,4-cyclohexylene or 1,4-phenylene; D is trans-1,4-cyclohexylene or 1,4-phenylene in which H(s) at 2- or 3-position may be replaced by F(s); and 1 is 0 or 1.
    • 通过包含第一组分(式Ic),第二组分(式II-c)和第三组分(式III或其组合)的LC组合物提供具有较高DELTA n和低粘度的TN和STN模式的LC材料 (II)c)(II-c)R3(B)Z2(C)R4(Ⅲ)R3,R4和R5是C1-10烷基或C2-10烯基,其中烷基和烯基 一个或两个不相邻的亚甲基可以被-O-取代; R6是C1-10烷基,烷氧基或烷氧基甲基; Z 1和Z 3是-CH 2 CH 2 - , - COO-或单键; Z2是-C3ONDC,-COO - , - CH2CH2-或单键; Z4为-C3ONDC-,-COO-或单键; Q1为H或F; A2,B,C和E是反式-1,4-亚环己基或1,4-亚苯基; D是其中2-或3-位上的H(s)可以被F(s)代替的反式-1,4-亚环己基或1,4-亚苯基; 1为0或1。
    • 10. 发明授权
    • Method and program for calculating correction value for machine tool
    • 计算机床校正值的方法和程序
    • US09002503B2
    • 2015-04-07
    • US13419817
    • 2012-03-14
    • Tetsuya Matsushita
    • Tetsuya Matsushita
    • B29C39/00G05B19/401
    • G05B19/401G05B2219/37506G05B2219/50353Y10T409/305824
    • The present invention provides a method of computing a correction value for the machine tool having two or more translational axes and one or more rotational axes for correcting error in a position and an orientation of the tool with respect to a workpiece due to the geometric error. The method includes a rotational axis correction value computing step (S3) for computing a correction value for the rotational axis by use of a geometric parameter representing the geometric error, and a translational axis correction value computing step (S4) for computing a correction value for the translational axis by use of a command value for each of the rotational axes, a command value for each of the translational axes, and the geometric parameter.
    • 本发明提供了一种用于计算具有两个或多个平移轴和一个或多个旋转轴的机床的校正值的方法,用于根据几何误差校正刀具相对于工件的位置和取向的误差。 该方法包括用于通过使用表示几何误差的几何参数来计算旋转轴的校正值的旋转轴校正值计算步骤(S3),以及用于计算修正值的平移轴校正值计算步骤(S4) 通过使用每个旋转轴的命令值的平移轴,每个平移轴的命令值和几何参数。