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    • 2. 发明申请
    • Board for printed wiring
    • 印刷线路板
    • US20040058138A1
    • 2004-03-25
    • US10669018
    • 2003-09-24
    • SUMITOMO ELECTRIC INDUSTRIES, LTD
    • Shinji InazawaHiroshi TakadaAkihisa HosoeKouji Nitta
    • B32B003/00
    • H05K1/0233Y10T428/24917
    • A board for printed wiring comprises an electromagnetic wave absorbing laminate (EM) provided on a surface of a substrate (1) with the intervention of an adhesive layer (2) of a metal oxide, the electromagnetic wave absorbing laminate (EM) comprising: (a) a magnetic layer (3) comprising a plurality of magnetic particles (31) having an average particle diameter of 1 to 150 nm and isolated from each other by an electrically insulative material (32); and (b) an electrically insulative layer (4), being alternately stacked in a multi-layer structure, the board for printed wiring has a reduced thickness and an improved electromagnetic wave absorbing characteristic in a high frequency band of not lower than gigahertz, as compared with a conventional one which has an electromagnetic wave absorbing layer of a composite material including fine magnetic particles simply dispersed in a resin binder.
    • 用于印刷布线的板包括设置在基板(1)的表面上的电磁波吸收叠层(EM),介于金属氧化物的粘合剂层(2)之间,所述电磁波吸收叠层体(EM)包括: a)包含平均粒径为1〜150nm并通过电绝缘材料(32)彼此隔离的多个磁性颗粒(31)的磁性层(3); 和(b)以多层结构交替堆叠的电绝缘层(4),印刷布线板具有不低于千兆赫兹的高频带中的厚度减小和电磁波吸收特性的改善,如 与传统的具有简单分散在树脂粘合剂中的复合材料的电磁波吸收层相比,其具有细小的磁性颗粒。
    • 3. 发明申请
    • Method of producing alloy powders, alloy powders obtained by said method and products applying said powders
    • 制备合金粉末的方法,通过所述方法获得的合金粉末和应用所述粉末的产品
    • US20030094076A1
    • 2003-05-22
    • US10340613
    • 2003-01-13
    • Sumitomo Electric Industries, Ltd.
    • Akihisa HosoeShinji InazawaMasatoshi MajimaKatsuya YamadaHiroshi OkazakiSouji NishikawaToshio Shimotsuji
    • C22C001/05
    • B82Y25/00B22F9/24B22F2998/00H01F1/0063H01F1/14733H01F1/14758B22F1/0018
    • This invention aims at providing a method of obtaining fine alloy powders, which are extremely small in particle size, high in purity, and uniform in composition, providing fine alloy powders obtained by this method, and providing molding materials, slurries, and electromagnetic shielding materials, which use these fine alloy powders. This invention provides a fine alloy powder production method, which is characterized in that after performing the process of mixing at least a trivalent titanium compound and a complexing agent, which binds with the trivalent titanium ion, in an aqueous solution containing two or more types of metal ion, the two or more types of metal are made to deposit simultaneously. This invention also provides fine alloy powders, which are obtained by the above-described method, that are 1 to 100 nm in particle size, and preferably exhibit the characteristics of soft magnetic material, and molding materials, slurries, and electromagnetic shielding materials, produced by dispersing an abovementioned fine alloy powder in a resin.
    • 本发明的目的在于提供一种获得细小的合金粉末的方法,其粒径非常小,纯度高,组成均匀,提供通过该方法获得的细小合金粉末,并提供成型材料,浆料和电磁屏蔽材料 ,其使用这些细合金粉末。 本发明提供一种微细合金粉末的制造方法,其特征在于,在将含有三价钛离子的至少三价钛化合物和络合剂进行混合后,在含有两种以上的 金属离子,使两种或更多种金属同时沉积。 本发明还提供了通过上述方法获得的细小的合金粉末,其粒径为1〜100nm,优选表现出软磁性材料的特性,以及成型材料,浆料和电磁屏蔽材料, 通过将上述细合金粉末分散在树脂中。