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    • 1. 发明专利
    • Electrode for electrochemical measurement and electrochemical analyzer
    • 电化学测量电极和电化学分析仪
    • JP2012154886A
    • 2012-08-16
    • JP2011016434
    • 2011-01-28
    • Hitachi High-Technologies Corp株式会社日立ハイテクノロジーズ
    • KANEMOTO MASARUAKABOSHI HARUOYOSHIDA HIROSHIIMAI KENTASAKAZUME TAKU
    • G01N27/30G01N27/28G01N27/416
    • PROBLEM TO BE SOLVED: To realize an electrochemical analyzer having a working electrode less varied in an electrode surface state.SOLUTION: A working electrode 2, a counter electrode 3 and a reference electrode 4 are disposed in an electrolytic cell 1. The working electrode has a layered structure of a valve metal and platinum, a cross-sectional crystal structure along a thickness direction in a platinum portion is formed in the shape of layers on an electrode surface, and each layer of the platinum portion has a thickness of 5 micrometers or less. The electrodes 2, 3 and 4 are connected to potential applying means 5 and measuring means 6 through lead wires 7. A solution dispensing mechanism 11 introduces a measurement solution including a target chemical component from a measurement solution vessel 8 into a solution introducing tube 13 and introduces a buffer solution from a buffer vessel 9 into the solution introducing tube 13. The measurement solution and the buffer solution thus introduced are injected by a solution injecting mechanism 12 into the electrolytic cell 1 for electrochemical measurement of the target component.
    • 要解决的问题:实现电极表面状态的工作电极变化不大的电化学分析装置。 解决方案:工作电极2,对电极3和参比电极4设置在电解池1中。工作电极具有阀金属和铂的层状结构,沿厚度的横截面晶体结构 铂部分的方向形成为电极表面上的层的形状,并且铂层的每一层的厚度为5微米或更小。 电极2,3和4通过引线7连接到电位施加装置5和测量装置6.溶液分配机构11将包括目标化学成分的测量溶液从测量溶液容器8引入溶液导入管13和 将缓冲溶液从缓冲容器9引入到溶液导入管13中。将由此引入的测定溶液和缓冲溶液通过溶液注入机构12注入到用于目标成分的电化学测定的电解池1中。 版权所有(C)2012,JPO&INPIT
    • 3. 发明专利
    • Nucleic acid analysis cartridge, method for manufacturing the same, and nucleic acid analyzer
    • 核酸分析盒,其制备方法和核酸分析仪
    • JP2014163773A
    • 2014-09-08
    • JP2013034418
    • 2013-02-25
    • Hitachi High-Technologies Corp株式会社日立ハイテクノロジーズ
    • AIDA KOHEIYOSHIDA HIROSHINARAHARA MASATOSHISUGIMURA TEISHOKIMURA RYUSUKENAKAZAWA TAROYAMAZAKI MOTOHIRO
    • G01N35/08G01N37/00
    • PROBLEM TO BE SOLVED: To provide a low-cost cartridge body which reduces mixture of contaminant and a membrane, and to provide a bonding process between the low-cost cartridge body and the membrane while suppressing a reduction in liquid feed accuracy and nucleic acid loss in liquid feed in a nucleic acid analysis cartridge.SOLUTION: In a nucleic acid analysis cartridge with a plurality of built-in reagents, reagent solution can be fed by non-contact liquid feed in a device using air pressure; as for bonding between a cartridge body and a membrane, direct bonding by deposition is performed; and materials with excellent deposition compatibility, high heat resistance, high chemical resistance, low water absorption, and low vapor transmission are selected for the materials of the cartridge and the membrane. Since bonding by deposition does not require introduction of different kinds of materials and formation of a polar functional group in the bonding, there is no fear of corrosion and nucleic acid adsorption by the reagent solution at a bonded part of the cartridge, and the bonding is at lower cost than that of other direct bonding processes.
    • 要解决的问题:提供一种降低污染物和膜的混合物的低成本筒体,并且在抑制液体进料精度和核酸损失降低的同时在低成本筒体与膜之间提供粘合工艺 在核酸分析盒中的液体进料中。解决方案:在具有多个内置试剂的核酸分析盒中,可以通过使用空气压力的装置中的非接触液体进料来供给试剂溶液; 对于盒体和膜之间的结合,进行通过沉积的直接接合; 对于盒和膜的材料,选择具有优异的沉积相容性,高耐热性,高耐化学性,低吸水性和低蒸汽透过性的材料。 由于通过沉积的粘合不需要引入不同种类的材料并在结合中形成极性官能团,所以不必担心在盒的接合部分处的试剂溶液的腐蚀和核酸吸附,并且粘合是 成本低于其他直接粘合工艺。
    • 4. 发明专利
    • Nucleic acid analyzing device and nucleic acid analyzer
    • 核酸分析装置和核酸分析仪
    • JP2010243223A
    • 2010-10-28
    • JP2009089671
    • 2009-04-02
    • Hitachi High-Technologies Corp株式会社日立ハイテクノロジーズ
    • OBARA TAKAYUKISAITO TOSHIRONARAHARA MASATOSHIITABASHI NAOSHIFUJITA TAKESHIYOSHIDA HIROSHI
    • G01N21/64C12M1/00
    • G01N21/648
    • PROBLEM TO BE SOLVED: To detect the fluorescence, which is emitted from fluorescent dye by irradiation with exciting light with a wavelength of about 500 nm, with high precision in a nucleic acid analyzing device.
      SOLUTION: In the nucleic acid analyzing device having a metal body producing localized surface plasmon by light irradiation, the material of the metal body consists of metal selected from any of ruthenium, iridium, palladium and rhodium or an alloy of the metals. These metals efficiently produce localized surface plasmon with respect to light with a wavelength of about 500 nm. Further, as the metals have extremely low ionization tendency and are very chemically stable, they can be used in a reaction solution for a long time. The present invention enables fluorescent measurement of nucleic acid stably and with high efficiency using light with the wavelength of about 500 nm.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:通过在核酸分析装置中以高精度照射波长约500nm的激发光来检测从荧光染料发出的荧光。 解决方案:在具有通过光照射产生局部表面等离子体的金属体的核酸分析装置中,金属体的材料由选自钌,铱,钯和铑中的任何一种的金属或金属的合金组成。 相对于约500nm波长的光,这些金属有效地产生局部表面等离子体激元。 此外,由于金属具有极低的电离倾向并且非常化学稳定,所以它们可长时间地用于反应溶液中。 本发明能够使用波长为约500nm的光稳定且高效地进行核酸的荧光测定。 版权所有(C)2011,JPO&INPIT