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    • 4. 发明授权
    • Magnetic head
    • 磁头
    • US5663857A
    • 1997-09-02
    • US695757
    • 1996-08-08
    • Tatsuo KumuraFusashige TokutakeAkira UraiJunichi HondaHideaki Ojima
    • Tatsuo KumuraFusashige TokutakeAkira UraiJunichi HondaHideaki Ojima
    • G11B5/31
    • G11B5/313
    • A magnetic head comprising a pair of magnetic core halves each having a magnetic core film sandwiched between a pair of non-magnetic substrates, said magnetic core halves being abutted to each other with the end faces of the magnetic core films facing each other, with a magnetic gap being defined in an interface of abutment of said magnetic core films, wherein the magnetic core film is of a laminated magnetic film structure comprising a plurality of laminated magnetic film units laminated with insulating films in-between. Each laminated magnetic film unit in turn comprises a plurality of magnetic films with non-magnetic films in-between, with the magnetic films being magnetostatically connected to one another at film ends. By employing the laminated magnetic film unit for the magnetic core film, it becomes possible to markedly increase the magnetic permeability in a direction normal to the gap depth when anisotropy is applied in the gap depth direction. With the above magnetic head, a plurality of the magnetic film units are laminated with insulating films in-between for suppressing eddy current losses in the high frequency region. As a result, excellent electro-magnetic transducing characteristics may be obtained in the high frequency range.
    • 一种磁头,包括一对磁芯半部,每个磁芯半部具有夹在一对非磁性基板之间的磁芯膜,所述磁芯半体彼此抵接,磁芯膜的端面彼此面对, 磁隙限定在所述磁芯膜的邻接界面中,其中所述磁芯膜是层叠的磁膜结构,其包括在其间层叠有绝缘膜的多个层压磁膜单元。 每个层压磁膜单元又包括在其间具有非磁性膜的多个磁性膜,磁膜在膜端彼此静磁连接。 通过采用层叠磁性膜单元作为磁芯膜,当在间隙深度方向上施加各向异性时,可以使垂直于间隙深度的方向显着增加导磁率。 利用上述磁头,多个磁性膜单元在其间层叠有绝缘膜,以抑制高频区域中的涡流损耗。 结果,可以在高频范围内获得优异的电磁转换特性。
    • 6. 发明授权
    • Nonaqueous electrolyte battery having exposed electrode collector portions
    • 具有暴露的电极收集部分的非水电解质电池
    • US07527892B2
    • 2009-05-05
    • US10156283
    • 2002-05-28
    • Ken SegawaShigeru FujitaHideaki OjimaTakashi Tomita
    • Ken SegawaShigeru FujitaHideaki OjimaTakashi Tomita
    • H01M4/00
    • H01M10/0587H01M2/1235H01M2/345H01M10/0431H01M10/0525H01M10/4235H01M10/613H01M10/643H01M10/654
    • A nonaqueous electrolyte battery capable of minimizing damage if the battery is crushed by pressure is disclosed. The nonaqueous electrolyte battery according to the present invention includes a spiral coil formed by, through a separator, winding a positive electrode having an elongated positive-electrode collector with two sides on each of which an active material for the positive electrode has been formed and a negative electrode having an elongated negative-electrode collector with two sides on each of which an active material for the negative electrode has been formed. Wherein the positive electrode has a lengthwise directional end which has two sides, each of which is provided with a positive-electrode-collector exposed portion in which a positive-electrode collector is exposed, the negative electrode has a lengthwise directional end which has two sides, each of which is provided with a negative-electrode-collector exposed portion in which a negative-electrode collector is exposed, and the positive-electrode-collector exposed portion and the negative-electrode-collector exposed portion cover the coil one or more times through the separator.
    • 公开了一种非水电解质电池,其能够在电池被压力压碎时使损伤最小化。 根据本发明的非水电解质电池包括螺旋线圈,该螺旋线圈通过隔膜卷绕正极,所述正极具有细长的正极集电体,两侧具有用于正极的活性材料已经形成的两侧, 负极具有细长的负极集电体,其两侧均形成有用于负极的活性材料。 其中正极具有长度方向端,其具有两侧,每个侧面设置有阳极集电体暴露部分,正极集电体露出,负极具有纵向方向端,其具有两侧 各负极集电体露出的负极集电体露出部分,正极集电体露出部分和负极集电体露出部分覆盖线圈一次或多次 通过分隔符。