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    • 35. 发明授权
    • Simplified loading device
    • 简化装载装置
    • US06823971B2
    • 2004-11-30
    • US10101043
    • 2002-03-19
    • Hiroshi TakedaMakoto SaitoMasami Nakano
    • Hiroshi TakedaMakoto SaitoMasami Nakano
    • F16D6300
    • F16D57/002F16D63/00
    • There is provided a simplified loading device in which a permanent magnet is arranged between a moving element and a fixed element for holding the moving element, a magnetic fluid is disposed in a gap developed at some midpoint in a magnetic circuit in which the magnetic flux of the permanent magnet passes through the moving element, and a shearing force of the magnetic fluid produced by the magnetic flux of the permanent magnet is exerted on the moving element as a loading force. Thereby, a higher loading force can be generated and the device can be made smaller in size than in the case of the conventional friction or hysteresis brake.
    • 提供了一种简化的装载装置,其中在移动元件和用于保持移动元件的固定元件之间布置有永磁体,磁性流体设置在磁路中的某个中点处形成的间隙中,其中磁通量 永磁体通过移动元件,并且由永磁体的磁通产生的磁性流体的剪切力作为装载力施加在移动元件上。因此,可以产生更高的装载力,并且装置可以 在常规摩擦或滞后制动的情况下的尺寸要小些。
    • 40. 发明授权
    • Process for producing an amino acid-N, N-diacetic acid and its salts
    • 制备氨基酸-N,N-二乙酸及其盐的方法
    • US06527931B2
    • 2003-03-04
    • US09983912
    • 2001-10-26
    • Nobuyoshi NambuMasanori FurukawaMakoto SaitoTohru Yamamoto
    • Nobuyoshi NambuMasanori FurukawaMakoto SaitoTohru Yamamoto
    • B01D6142
    • C07C227/18B01D61/44C07C227/40C11D3/33C07C229/16C07C229/24
    • An amino acid-N,N-diacetic acid (AADA) or its salt with an equivalent or less of an alkali metal is produced by reducing, through electrodialysis, alkali metal ions from an aqueous solution of the alkali metal salt of an AADA. By this configuration, an AADA salt can be produced in a much higher yield than conventional equivalents without requiring a regeneration operation of a resin as in the use of an ion exchange resin or without requiring crystallization-separation of crystals of the AADA salt as in the addition of an organic solvent. A salt of an amino acid-N,N-diacetic acid is also produced by reacting an AADA with any of metal oxides, metal hydroxides, metal carbonates, metal hydrogencarbonates, ammonium hydroxide, ammonium carbonate, ammonium hydrogencarbonate or organic amine compounds. By this configuration, a metal salt, aromonium salt or organic amine salt of an AADA can be produced with efficiency without the formation of by-products.
    • 通过电渗析从AADA的碱金属盐的水溶液中还原碱金属离子,生成氨基酸-N,N-二乙酸(AADA)或其等同物或碱金属的盐。 通过这种构造,可以以比常规等同物高得多的产率生产AADA盐,而不需像使用离子交换树脂那样进行树脂的再生操作,或者不需要像在 加入有机溶剂。 氨基酸-N,N-二乙酸的盐也通过使AADA与金属氧化物,金属氢氧化物,金属碳酸盐,金属碳酸氢盐,氢氧化铵,碳酸铵,碳酸氢铵或有机胺化合物中的任一种反应而产生。 通过这种构造,可以有效地生产AADA的金属盐,芳香盐或有机胺盐,而不会形成副产物。