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    • 52. 发明授权
    • Oxidation catalyst
    • 氧化催化剂
    • US06391821B1
    • 2002-05-21
    • US09334379
    • 1999-06-16
    • Yuuichi SatohJun TatsumiToshiya IidaToshio Hayashi
    • Yuuichi SatohJun TatsumiToshiya IidaToshio Hayashi
    • B01J2300
    • B01J23/66B01J23/52C07C67/00C07C67/035C07C69/157C07C69/16C07C69/28
    • An oxidation catalyst according to the present invention is prepared, for example, by heat processing a gold compound at 150° C. to 80° C., yielding ultrafine gold particles, which are then mixed with a palladium compound and a compound containing at least one element selected from the group consisting of alkaline metals and the elements of Groups IIA, IIIA, VIA, IIB, VB, and VIII of the Periodic Table. By an oxidation reaction between a benzyl compound such as p-xylene and a carboxylic acid such as acetic acid in the presence of oxygen and the oxidation catalyst prepared as above, a benzyl ester such as p-methylbenzyl acetate or p-xylylene diacetate can be produced. Consequently, it is possible to provide an oxidation catalyst suitable for use in industrially producing the foregoing benzyl esters, a method of preparing the foregoing oxidation catalyst, and a method of producing the foregoing benzyl esters efficiently and at low cost.
    • 根据本发明的氧化催化剂例如通过在150℃至80℃下热处理金化合物而制备,产生超细金颗粒,然后将其与钯化合物和至少含有化合物 选自碱金属和元素周期表IIA,IIIA,VIA,IIB,VB和VIII族元素的一种元素。 通过苄基化合物如对二甲苯和羧酸如乙酸在氧气存在下的氧化反应和如上制备的氧化催化剂,可以将苄基酯如对甲基苄基乙酸酯或对二甲苯基二乙酸酯 生产。 因此,可以提供适用于工业生产上述苄基酯的氧化催化剂,制备上述氧化催化剂的方法,以及以低成本有效地生产上述苄基酯的方法。
    • 54. 发明授权
    • Glass breaking detection device
    • 玻璃破碎检测装置
    • US5742232A
    • 1998-04-21
    • US503047
    • 1995-07-17
    • Akira KurahashiToshio Hayashi
    • Akira KurahashiToshio Hayashi
    • G01M17/007B60R25/00B60R25/34G08B13/04G08B21/00G08B13/00
    • G08B13/04G08B13/1672
    • A first wave of a glass breaking sound has a sharp peak due to an impact sound and thereafter it attenuates rapidly. The attenuating characteristics of the first wave is measured with an attenuating time or a magnitude of attenuation thereof so that whether or not glass breaking has occurred is determined. Since an original waveform obtained by a microphone includes noise, low frequency components are eliminated by a high pass filter. The characteristics of the first wave of the glass breaking sound is almost stable. Therefore, by detecting the characteristics from the first wave, the glass breaking can be detected without errors. Further, since the glass breaking is detected by attenuation of the first wave, the detection can be carried out quickly.
    • 玻璃破裂声的第一波由于撞击声而具有尖锐的峰值,此后其迅速衰减。 以衰减时间或衰减量来测量第一波的衰减特性,以确定是否发生玻璃破裂。 由于由麦克风获得的原始波形包括噪声,所以通过高通滤波器消除低频分量。 玻璃破碎声的第一波特点几乎是稳定的。 因此,通过检测来自第一波的特性,可以无错误地检测玻璃破碎。 此外,由于通过第一波的衰减来检测玻璃破裂,因此能够快速地进行检测。
    • 59. 发明授权
    • Recycle treatment of waste water from nickel plating
    • 从镀镍回收处理废水
    • US4009101A
    • 1977-02-22
    • US613086
    • 1975-09-15
    • Toshio Hayashi
    • Toshio Hayashi
    • C02F1/66C02F9/00C25D21/22B01D15/04
    • C25D21/22C02F1/66C02F2101/20C02F2103/16
    • A method for the recycle treatment of nickel plating waste water, in order to efficiently recover the nickel components from waste water which has been used for the washing of nickel plated products in a form re-usable as a nickel plating solution as such, wherein the nickel plating waste water is mixed with an aqueous alkaline component so as to remove, by precipitation in the form of hydroxides, contaminating metal ions other than nickel; the filtrate so obtained is treated through an ion exchange process so as to obtain an aqueous solution of nickel salts containing excess free sulfuric acid, a portion of which is then treated with alkali so as to precipitate nickel hydroxide which is separated in the form of nickel hydroxide through filtration by means of a centrifuge; the nickel hydroxide so obtained is then added to the rest of the aqueous nickel salt solution for neutralization with the free sulfuric acid contained therein to form nickel sulfate; and the free sulfuric acid is then removed so as to obtain a highly concentrated nickel sulfate solution.
    • 一种用于镍电镀废水的再循环处理的方法,以便有效地回收已经用于以可重新使用的镀镍溶液的形式洗涤镀镍产品的废水中的镍组分,其中, 将镍电镀废水与碱性水溶液组分混合,以除去氢氧化物形式的除镍以外的污染金属离子; 通过离子交换法处理如此得到的滤液,得到含有过量游离硫酸的镍盐水溶液,其一部分用碱处理,沉淀出以镍的形式分离的氢氧化镍 氢氧化物通过离心机过滤; 然后将如此获得的氢氧化镍加入到其余的镍盐水溶液中,用其中所含的游离硫酸中和形成硫酸镍; 然后除去游离硫酸,得到高度浓缩的硫酸镍溶液。