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    • 91. 发明公开
    • METHOD OF DETECTING AND SEPARATING UNDIFFERENTIATED LIVER CELLSS USING DLK
    • VERFAHREN ZUM NACHWEIS UND ZUR TRENNUNG不饱和脂肪酸酯LEBERZELLEN MIT DLK
    • EP1394263A1
    • 2004-03-03
    • EP02780780.9
    • 2002-05-16
    • KANAGAWA ACADEMY OF SCIENCE AND TECHNOLOGYKIRIN BEER KABUSHIKI KAISHA
    • TANIMIZU, NaokiMIYAJIMA, Atsushi
    • C12Q1/00C12N5/00
    • G01N33/56966
    • It was discovered that a membrane protein dlk (delta-like) is specifically expressed on the surfaces of fetal hepatic cells. We succeeded in purifying undifferentiated hepatic cells including hepatic stem cells to high purify from mouse fetal liver using an antibody to dlk protein. The obtained fetal hepatic cells included hepatic stem cells having bipotency. The present invention provides a marker molecule of hepatic cells, and a method for detecting undifferentiated hepatic cells utilizing this molecule. The present invention also provides a method for separating undifferentiated hepatic cells utilizing this marker molecule, and the undifferentiated hepatic cells separated by this method. By using the method of the present invention, hepatic stem cells may be purified simply to high concentration. The undifferentiated hepatic cells obtained by the present invention may be used for regenerative medicine and artificial liver. They may also be used for analyses of intercellular interactions, and for assay systems and screening systems for investigating drug metabolism as well as for searching drugs and anti-viral agents which control the drug metabolism or differentiation of hepatic cells.
    • 已经发现膜蛋白dlk(δ-样)被特异性表达在胎儿肝细胞的表面上。 我们使用dlk蛋白的抗体成功地纯化包括肝干细胞在内的未分化肝细胞以从小鼠胎肝中高纯化。 获得的胎肝细胞包括具有双性的肝干细胞。 本发明提供肝细胞的标记分子,以及利用该分子检测未分化肝细胞的方法。 本发明还提供了利用该标记分子分离未分化肝细胞的方法,并且通过该方法分离未分化的肝细胞。 通过使用本发明的方法,可以简单地将肝干细胞纯化至高浓度。 通过本发明获得的未分化肝细胞可用于再生医学和人造肝。 它们还可用于细胞间相互作用的分析,以及用于调查药物代谢的检测系统和筛选系统以及用于搜索控制肝细胞的药物代谢或分化的药物和抗病毒剂。
    • 94. 发明公开
    • OPTICAL FIBER AND ITS MANUFACTURE
    • 光纤及其制造
    • EP0752601A1
    • 1997-01-08
    • EP94917156.5
    • 1994-06-03
    • KANAGAWA ACADEMY OF SCIENCE AND TECHNOLOGY
    • OHTSU, MotoichiMONONOBE, ShujiRAJAGOPALAN, Uma Maheswari
    • G02B6/10
    • G02B6/4203G01Q60/22G02B6/241G02B6/245Y10S977/862Y10S977/878
    • An optical fiber made up of a core for propagating the light and a clad covering the core for confining the light propagated in the core. The optical fiber has a tapering protrusion at the apex for entrance and exiting of light. The optical fiber is used in a photon scanning tunneling microscope detecting the evanescent light localized in an area smaller in size than the wavelength of light on the surface of a sample as an optical probe disposed in proximity to the surface of the sample for scattering the evanescent light for detecting the scattered light. The optical fiber is optically coupled to an optical waveguide for constituting an optically coupled element. With this optically coupled element, a protrusion of the optical fiber operates as a collection unit for collecting the light propagated in the core. The light collected by the protrusion enters the optical waveguide.
    • 由用于传播光的芯部和覆盖芯部的包层组成的光纤用于限制在芯部中传播的光。 光纤在顶点处具有锥形突起以用于光的入射和出射。 将光纤用于光子扫描隧道显微镜,该光子扫描隧道显微镜检测位于比样品表面上的光的波长小的区域中的渐逝光,作为设置在样品表面附近的光学探针用于散射瞬逝 用于检测散射光的光。 光纤光耦合到用于构成光耦合元件的光波导。 利用该光学耦合元件,光纤的突起作为收集单元来收集在芯中传播的光。 由突起收集的光进入光波导。