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公开(公告)号：US06936340B2
公开(公告)日：2005-08-30
申请号：US09826901
申请日：2001-04-06
申请人： Helmut Jakusch , Albert Kohl , Peter Heilmann , Ronald John Veitch , Ria Kress , Stefan Müller , Johannes Sandrock , Hartmut Heene
发明人： Helmut Jakusch , Albert Kohl , Peter Heilmann , Ronald John Veitch , Ria Kress , Stefan Müller , Johannes Sandrock , Hartmut Heene
IPC分类号： G11B5/667 , G11B5/70 , G11B5/706 , G11B5/708 , G11B5/712 , G11B5/714 , G11B5/716 , G11B5/842 , B32B5/16 , G11B5/66
CPC分类号： G11B5/70678 , G11B5/70652 , G11B5/708 , G11B5/716 , Y10S428/90 , Y10T428/25 , Y10T428/256 , Y10T428/257 , Y10T428/258 , Y10T428/259 , Y10T428/26 , Y10T428/265 , Y10T428/269
摘要： Multilayer magnetic recording medium which is suitable for high recording densities and the recording of digital data, has very good electromagnetic recording properties and good surface smoothness and can absorb a large amount of lubricant in the lower layer and has at least one upper magnetic recording layer less than 0.5 μm thick and at least one lower layer which contains a magnetically soft pigment.
摘要翻译： 适用于高记录密度和数字数据记录的多层磁记录介质具有非常好的电磁记录性能和良好的表面平滑度，并且能够在下层吸收大量的润滑剂，并且具有至少一个上磁记录层 超过0.5μm厚，以及至少一个含有软质软质颜料的下层。
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公开(公告)号：US06835450B2
公开(公告)日：2004-12-28
申请号：US09826932
申请日：2001-04-06
申请人： Ronald John Veitch , Albert Kohl , Helmut Jakusch , Andreas Ilmer , Peter Heilmann , Ria Kress , Stefan Müller , Johannes Sandrock
发明人： Ronald John Veitch , Albert Kohl , Helmut Jakusch , Andreas Ilmer , Peter Heilmann , Ria Kress , Stefan Müller , Johannes Sandrock
IPC分类号： B32B516
CPC分类号： G11B5/852 , G11B5/70621 , G11B5/70652 , G11B5/70678 , G11B5/708 , Y10T428/265
摘要： Multilayer magnetic recording medium is suitable for high recording densities and the recording of digital data, has very good electromagnetic recording properties in the entire recording wavelength range and good mechanical properties and possesses a flat frequency response and which has at least one upper magnetic recording layer less than 0.5 &mgr;m thick and at least one lower layer which contains a magnetically soft pigment.
摘要翻译： 多层磁记录介质适用于高记录密度和数字数据的记录，在整个记录波长范围内具有非常好的电磁记录性能和良好的机械性能，并且具有平坦的频率响应，并且具有至少一个较高的磁记录层 超过0.5μm厚，以及至少一个含有软质软质颜料的下层。
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公开(公告)号：US06231963B1
公开(公告)日：2001-05-15
申请号：US08913808
申请日：1998-03-17
申请人： August Lehner , Helmut Jakusch , Volker Koch , Manfred Ohlinger , Albert Kohl , Werner Lenz , Norbert Schneider , Peter Heilmann , Werner Hübner , Erich Hoffmann , Ronald John Veitch , Rudi Lehnert , Harald Jachow
发明人： August Lehner , Helmut Jakusch , Volker Koch , Manfred Ohlinger , Albert Kohl , Werner Lenz , Norbert Schneider , Peter Heilmann , Werner Hübner , Erich Hoffmann , Ronald John Veitch , Rudi Lehnert , Harald Jachow
IPC分类号： G11B5733
CPC分类号： G11B5/708 , G11B5/733 , G11B5/738 , Y10S428/90 , Y10T428/256 , Y10T428/257
摘要： Described are tape-type magnetic recording media (I) including a non-magnetic substrate (III), at least one film applied to the substrate and, in at least one of these films, an inorganic acicular pigment (II) suitable for use as a supporting pigment, the ratio of the mean length to the mean diameter of the pigment (II) being at least 3 and the mean modulus of elasticity of the films being not less than 15 GPa in the longitudinal direction of the tape-type recording medium (I).
摘要翻译： 描述了包括非磁性基板（III）的带式磁记录介质（I），至少一个施加到基板的膜，并且在这些膜中的至少一个膜中，适合用作 支撑颜料，颜料（II）的平均长度与平均直径的比率至少为3，膜的平均弹性模量在带式记录介质的纵向方向上不小于15GPa （一世）。
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4.发明授权Magnetic recording apparatus with magnetic recording medium having high recording density 失效具有高记录密度的磁记录介质的磁记录装置
公开(公告)号：US5982567A
公开(公告)日：1999-11-09
申请号：US892429
申请日：1997-07-14
摘要： A longitudinally oriented magnetic recording medium is described which has advantageous properties for digital recording, ie. a very small pulse width and high output level, and wherein the quotient l.sub.r /(d.multidot.L) (l.sub.r =residual polarization in mT, d=layer thickness in .mu.m, L=mean particle length in nm) is greater than 18 and the pulse width stated as PW.sub.50 is smaller than 500 nm.
摘要翻译： 描述了一种纵向取向的磁记录介质，其具有用于数字记录的有利特性，即。 非常小的脉冲宽度和高输出电平，并且其中商lr /（dxL）（lr = mT中的剩余极化，d =以μm为单位的层厚度，L =以nm计的平均粒子长度）大于18，脉冲 PW50的宽度小于500nm。
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