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    • 6. 发明专利
    • Magnetic member, and electronic component
    • 磁性元件和电子元件
    • JP2011119661A
    • 2011-06-16
    • JP2010215871
    • 2010-09-27
    • Ferrotec Corp株式会社フェローテック
    • HIROTA YASUTAKEKATSUMA KENICHIHIROOKA MASATAKEHATTA TAKAYUKI
    • H01F1/36G01R33/02H01F1/37H01F27/255
    • H01F1/0018B22F1/0018B82Y25/00B82Y30/00H01F1/0054H01F1/0063H01F3/08
    • PROBLEM TO BE SOLVED: To provide a magnetic member prevented from losing superparamagnetic characteristics to produce magnetic hysteresis when in use. SOLUTION: The superparamagnetic particles of a magnetic member are held in a non-displaceable manner, so that when an external signal is applied to the magnetic member when in use, the magnetic response of the superparamagnetic particles depend on magnetization and demagnetization caused by Neel mechanism. Although a relaxation time τ needed for magnetization and demagnetization by the Neel mechanism is delayed according to the particle size of the superparamagnetic particles, the particle size of each of the superparamagnetic particles is set such that at least a Neel relaxation time τn of the each superparamagnetic particles is shorter than a cycle τS of the signal applied externally to the magnetic member (τn COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种磁性部件在使用时不会失去超顺磁特性而产生磁滞。 解决方案:磁性构件的超顺磁性颗粒以不可移动的方式保持,使得当使用时外部信号施加到磁性构件时,超顺磁性颗粒的磁响应取决于磁化和退磁 通过Neel机制。 尽管根据超顺磁性粒子的粒度,延迟了Neel机理的磁化和退磁所需的弛豫时间τ,但每个超顺磁性粒子的粒度被设定为使得每个超顺磁性的至少Neel弛豫时间τn 粒子短于在磁性部件外部施加的信号的周期τS(τn<τS)。 因此,外部施加的信号的周期T不变得比弛豫时间τ短,并且磁响应不能跟随周期T。结果,不会发生磁滞。 版权所有(C)2011,JPO&INPIT
    • 8. 发明专利
    • Magneto-optical material and method for manufacturing the same
    • 磁光材料及其制造方法
    • JP2008170986A
    • 2008-07-24
    • JP2007325312
    • 2007-12-17
    • National Institute Of Advanced Industrial & Technology独立行政法人産業技術総合研究所
    • BOKU SAIKAKUAKETO JUN
    • G02F1/09C23C24/04G02B1/10
    • H01F1/0063B05D1/12B82Y25/00G11B11/10582
    • PROBLEM TO BE SOLVED: To provide a new magneto-optical material excellent in magneto-optical characteristics such as light transmitting property, comprising cobalt ultrafine particles uniformly dispersed in a matrix of lead zirconate titanate (PZT), and an efficient manufacturing method of the material. SOLUTION: The magneto-optical material having light transmitting property is manufactured by suspending a source powder prepared by uniformly mixing lead zirconate titanate fine powder crystals and cobalt ultrafine particles in a carrier gas, blowing the gas to the surface of a substrate at normal temperature to be bonded on the substrate surface by use of an impact consolidation phenomenon at normal temperature, and forming a thin film having the cobalt ultrafine particles uniformly dispersed in the matrix of lead zirconate titanate on the substrate surface. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种具有均匀分散在锆钛酸铅(PZT)的基体中的钴超微粒子的透光性等磁光特性优异的新的磁光材料,以及高效的制造方法 的材料。 解决方案:具有透光性的磁光材料通过将通过均匀混合锆钛酸铅细粉末晶体和钴超微粒子制备的源粉末悬浮在载气中来制造,将气体吹送到基底表面 在正常温度下通过使用冲击固结现象在基材表面上粘合的常温,以及在基材表面上形成均匀分散在锆钛酸铅基质中的钴超细颗粒的薄膜。 版权所有(C)2008,JPO&INPIT