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    • 2. 发明授权
    • Oxygen-generating electrode and method for the preparation thereof
    • 产氧电极及其制备方法
    • US5156726A
    • 1992-10-20
    • US581417
    • 1990-09-12
    • Hiroyuki NakadaYukio KawashimaKazuhide Ohe
    • Hiroyuki NakadaYukio KawashimaKazuhide Ohe
    • C25B11/04C25B11/08C25C7/02
    • C25B11/0484C25C7/02
    • The electrode of the invention suitable for use in an oxygen-generating electrolytic process with durability comprises (A) a substrate of, e.g., titanium metal; (B) an undercoating layer thereon which is formed of a mixture of an iridium oxide and tantalum oxide in a limited molar proportion and (C) an overcoating layer formed of an iridium oxide. The undercoating layer can be formed by coating the substrate surface with a solution containing an iridium compound and tantalum compound each having thermal decomposability and then subjecting the coated substrate body to a heat treatment in an oxidizing atmosphere. Similarly, the overcoating layer can be formed by coating with a solution containing a thermally decomposable iridium compound followed by an oxidative heat treatment in an oxidizing atmosphere.
    • 适用于具有耐久性的产氧电解方法的本发明的电极包括(A)例如钛金属的基材; (B)由氧化铱和氧化钽的混合物以有限的摩尔比例形成的底涂层,(C)由氧化铱形成的外涂层。 底涂层可以通过用含有具有热分解性的铱化合物和钽化合物的溶液涂布基板表面,然后使涂覆的基板体在氧化气氛中进行热处理而形成。 类似地,外涂层可以通过用含有可热分解的铱化合物的溶液涂覆,然后在氧化气氛中进行氧化热处理来形成。
    • 4. 发明申请
    • INJECTION NEEDLE
    • 注射针
    • US20090118678A1
    • 2009-05-07
    • US10595957
    • 2004-11-18
    • Yukio KAWASHIMA
    • Yukio KAWASHIMA
    • A61M5/32
    • A61M5/3213A61M5/3257
    • A needle cover is moveable in the axial direction of a needle body is included. When a cap covering the needle body is detached from a hub, locking portions on a cap are locked at a first locking portion of the cover and the cover moves to the tip end side of the needle body with the cap, so the tip end side of the needle body is covered by the cover. Therefore, the external force in the bending direction is not directly applied to the needle body when or after the cap is detached. Since the needle cover can be moved to the tip end side of the needle body by locking the cap to the needle cover, no spring is needed to move the cover to the tip end side of the needle body, or form the cover into an extendable and retractable complicated shape.
    • 包括针盖在针体的轴向上可移动。 当覆盖针体的盖从轮毂脱离时,盖上的锁定部分被锁定在盖的第一锁定部分,并且盖通过盖移动到针体的末端侧,因此尖端侧 针体被盖子覆盖。 因此,当拆卸盖时,弯曲方向上的外力不会直接施加到针体。 由于针盖可以通过将盖锁定到针盖而能够移动到针体的前端侧,因此不需要弹簧将盖移动到针体的顶端侧,或者将盖形成为可延伸的 并可缩回复杂的形状。
    • 9. 发明授权
    • Inspection method of multilayer gas sensing device
    • 多层气体检测装置的检测方法
    • US07013701B2
    • 2006-03-21
    • US10730884
    • 2003-12-10
    • Yukio Kawashima
    • Yukio Kawashima
    • G01M3/00
    • G01N27/4175
    • Provided is an inspection method for a multilayer gas sensing device, capable of certainly and easily detecting a defective product originating from faults such as gaps or cracks. For the inspection of the gas sensing device including a sensor cell in which a measured gas side electrode is coated with a porous diffusion resistance layer in a stacked condition and the diffusion resistance layer is further coated with a dense protective layer in a stacked condition, in a state where the gas sensing device is immersed in a conductive inspection solution and a reference electrode of the sensor cell is placed into a non-contact with the solution, a voltage is applied between the solution and the reference electrode to measure a current flowing therebetween. On the basis of the measured current value, a decision is made as to whether or not the insulation is kept between the solution and the reference electrode.
    • 提供了一种用于多层气体检测装置的检查方法,其能够可靠且容易地检测源自诸如间隙或裂纹的缺陷的缺陷产物。 对于包括传感器单元的气体感测装置的检查,其中测量的气体侧电极以堆叠状态涂覆有多孔扩散电阻层,并且扩散电阻层在堆叠状态下进一步涂覆有致密保护层, 将气体检测装置浸入导电性检查溶液和传感器单元的参考电极的状态被放置为与溶液不接触的状态,在溶液和参比电极之间施加电压以测量在其间流动的电流 。 基于测量的电流值,决定绝缘是否保持在溶液和参比电极之间。
    • 10. 发明授权
    • Oxygen generating electrode
    • 产氧电极
    • US5294317A
    • 1994-03-15
    • US28805
    • 1993-03-10
    • Hiroaki SaitoYukio KawashimaKazuhide Ohe
    • Hiroaki SaitoYukio KawashimaKazuhide Ohe
    • C25B11/04C25B11/06C25B11/00
    • C25B11/0484
    • An oxygen generating electrode has on a conductive substrate a first layer of metallic platinum and tantalum oxide containing 80-99 mol% of Ta and 20-1 mol% of Pt, a second layer of iridium oxide and tantalum oxide containing 80-99.9 mol% of Ir and 20-0.1 mol% of Ta, and preferably a third layer of iridium oxide and tantalum oxide containing 40-79.9 mol% of Ir and 60-20.1 mol% of Ta. In another embodiment, the first layer consists of iridium oxide and tantalum oxide and contains 14-8.4 mol% of Ir and 86-91.6 mol% of Ta. The electrode, when used as an anode in electrolysis with concomitant oxygen generation, can be used for an extended period at a low bath voltage. It is adapted for electrolysis at a high current density of more than 100 A/cm.sup.2 since it maintains mechanical strength and has a long effective life. It experiences a minimal change of oxygen overvoltage with time.
    • 氧发生电极在导电基板上具有第一层金属铂和氧化钽,其含有80-99mol%的Ta和20-1mol%的Pt,第二层氧化铱和氧化钽含有80-99.9mol% 的Ir和20〜0.1mol%的Ta,优选为含有40〜79.9mol%的Ir和60〜20.1mol%的Ta的氧化铱和氧化钽的第三层。 在另一个实施方案中,第一层由氧化铱和氧化钽组成,并含有14-8.4mol%的Ir和86-91.6mol%的Ta。 该电极在电解时伴随氧气生成时用作阳极,可以在较低的浴电压下长时间使用。 它适用于高电流密度大于100A / cm2的电解,因为它保持机械强度并具有长的有效寿命。 氧气过电压随时间的变化很小。