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    • 71. 发明申请
    • MAGNETIC RECORDING MEDIUM AND PROCESS FOR PRODUCING THE SAME
    • 磁记录介质及其制造方法
    • US20080241600A1
    • 2008-10-02
    • US12056568
    • 2008-03-27
    • Hiroyuki TanakaTsutomu IdeOsamu Inoue
    • Hiroyuki TanakaTsutomu IdeOsamu Inoue
    • G11B5/66B05D5/12
    • G11B5/73G11B5/7026
    • The present invention provides a magnetic recording medium wherein a fine non-magnetic inorganic powder, the dispersibility of which is improved, is used to improve the surface smoothness of a lower non-magnetic layer, thereby giving an excellent surface smoothness of an upper magnetic layer and electromagnetic conversion property; and a production process thereof. A magnetic recording medium comprising at least a non-magnetic support, a lower non-magnetic layer on one surface of the non-magnetic support, and an upper magnetic layer on the lower non-magnetic layer, wherein the upper magnetic layer contains at least a ferromagnetic powder, and a binder resin material, and the lower non-magnetic layer contains at least carbon black, iron oxide, and a binder resin material, and the iron oxide has an average major axis length of 30 to 100 nm, and a specific surface area based on the BET method of 80 to 120 m2/g, and the iron oxide contains moisture in an amount per unit specific surface area of 0.13 to 0.25 mg/m2.
    • 本发明提供了一种磁记录介质,其中改善了其分散性的细非磁性无机粉末用于改善下部非磁性层的表面平滑度,从而赋予上层磁性层优异的表面平滑度 和电磁转换特性; 及其制造方法。 至少包括非磁性载体,非磁性载体的一个表面上的下部非磁性层和下部非磁性层上的上磁性层的磁记录介质,其中上部磁性层至少含有 铁磁粉末和粘结剂树脂材料,下部非磁性层至少含有炭黑,氧化铁和粘合剂树脂材料,氧化铁的平均长轴长度为30〜100nm, 基于BET法的比表面积为80〜120m 2 / g,氧化铁含有每单位比表面积为0.13〜0.25mg / m 2的水分, / SUP>。
    • 74. 发明授权
    • Low temperature probe for NMR and NMR device
    • 用于NMR和NMR装置的低温探针
    • US07358736B2
    • 2008-04-15
    • US11493819
    • 2006-07-27
    • Yuzo FukudaHiromitsu SeinoKazuo SaitohHiroyuki TanakaTsuyoshi WakudaNorihide SahoMichiya Okada
    • Yuzo FukudaHiromitsu SeinoKazuo SaitohHiroyuki TanakaTsuyoshi WakudaNorihide SahoMichiya Okada
    • G01V3/00
    • G01R33/30
    • The invention provides a low temperature probe having a high sensitivity by reducing a heat intrusion into a receive coil. A heat making an intrusion into a coil is suppressed by inserting a heat radiation shield in which a temperature is controlled at about 100 K to a portion between an outer container of a probe and a coil portion. A heat radiation shield bore sleeve is provided in a heat radiation bore, is connected to the heat radiation shield, and is cooled by a second heat exchanger. Further, the coil portion is cooled by a first heat exchanger. In preparation for a contraction at a time of being cooled, the outer container, the heat radiation shield and the coil portion are connected by using a fixing portion, and a heat relieving mechanism or a contraction relieving mechanism is provided in a root side (an opposite side to the fixing portion) of the heat radiation shield and the coil portion. The fixing portion is formed in a shape and made of a material having a small heat intrusion amount and having a small heat contraction.
    • 本发明通过减少对接收线圈的热侵入来提供具有高灵敏度的低温探针。 通过将温度控制在约100K的热辐射屏蔽物插入到探针的外部容器与线圈部分之间的部分来抑制进入线圈的热量。 热辐射屏蔽孔套筒设置在散热孔中,连接到散热屏蔽,并由第二热交换器冷却。 此外,线圈部分由第一热交换器冷却。 为了准备冷却时的收缩,通过使用固定部连接外容器,散热屏蔽体和线圈部,并且在根侧设置有放热机构或收缩解除机构 热辐射屏蔽体和线圈部分相对于固定部分的相对侧)。 固定部形成为由热侵入量小且热收缩小的材料构成。
    • 77. 发明授权
    • Low temperature probe having transmitting coil and receiving coil or transmit/receive coil and used in NMR apparatus
    • 低温探头具有发射线圈和接收线圈或发射/接收线圈,并用于NMR装置
    • US07295010B2
    • 2007-11-13
    • US11334439
    • 2006-01-19
    • Yuzo FukudaHiroyuki Tanaka
    • Yuzo FukudaHiroyuki Tanaka
    • G01V3/00
    • G01R33/34069F25B9/10F25B25/005G01R33/34023G01R33/3403G01R33/34053
    • In an ultrahigh sensitive NMR apparatus, a stability of a temperature of a very low temperature probe coil is improved. A low temperature probe of the high sensitive NMR apparatus is structured at a very low temperature by a cooling apparatus. A cooling medium at a room temperature (300 K) discharged from a compressor is cooled down to 70K by a countercurrent heat exchanger, and is next cooled down to 4K or less by a series of second stages. Further, the cooling medium enters into a low temperature probe via a transfer tube, cools a probe coil to 5 to 10K by a heat exchanging portion, further cools a radiation shield to 40 to 60K, and makes a circuit via the countercurrent heat exchanger. A high temperature stability can be applied to a receiving probe coil in the low temperature probe by a cooling apparatus having a high temperature stability.
    • 在超高灵敏度的NMR装置中,提高了极低温度的探针线圈的温度的稳定性。 高灵敏度NMR装置的低温探针通过冷却装置在非常低的温度下构成。 从压缩机排出的室温(300K)的冷却介质通过逆流式热交换器冷却至70K,接着通过一系列的第二级冷却至4K以下。 此外,冷却介质通过传输管进入低温探针,通过热交换部将探针线圈冷却至5〜10K,进一步将辐射屏蔽体冷却至40〜60K,并通过逆流热交换器进行回路。 可以通过具有高温度稳定性的冷却装置对低温探针中的接收探针线圈施加高温稳定性。