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1. 发明授权

US4201486A Process for the manufacture of magnetic recording media 失效
标题翻译：磁记录介质制造工艺
公开(公告)号：US4201486A
公开(公告)日：1980-05-06
申请号：US905040
申请日：1978-05-11
申请人： Werner Huebner , Job-Werner Hartmann , Friedrich Domas , Peter Nagel , Paul Deigner , Eberhard Koester , Hans Hauser
发明人： Werner Huebner , Job-Werner Hartmann , Friedrich Domas , Peter Nagel , Paul Deigner , Eberhard Koester , Hans Hauser
IPC分类号： B01F7/10 , G11B5/84 , G11B5/842 , G11B5/848 , B01F15/02
CPC分类号： G11B5/842 , G11B5/848
摘要： A process and apparatus for the manufacture of magnetic recording media, in which, immediately before the magnetic dispersion is applied to a base, the dispersion is subjected to shear by means of a disc rotatably mounted in a housing, by introducing it at the center of rotation of the disc and forcing it through a gap formed between the face of the disc and the wall of the housing, which gap tapers toward the rim of the disc.
摘要翻译：一种用于制造磁记录介质的方法和装置，其中在将磁分散体施加到基底之前，将分散体通过可旋转地安装在壳体中的盘进行剪切，通过将其引入到盘的旋转并迫使其穿过形成在盘的表面和壳体的壁之间的间隙，该间隙朝向盘的边缘逐渐变细。

2. 发明授权

US4423454A Magnetic recording disk 失效
标题翻译：磁记录盘
公开(公告)号：US4423454A
公开(公告)日：1983-12-27
申请号：US163400
申请日：1980-06-26
申请人： Peter Felleisen , Dieter Mayer , Eberhard Koester , Friedrich Domas , Paul Deigner
发明人： Peter Felleisen , Dieter Mayer , Eberhard Koester , Friedrich Domas , Paul Deigner
IPC分类号： C09D5/23 , G11B5/70 , G11B5/716 , G11B5/718 , G11B5/842 , G11B5/82
CPC分类号： G11B5/70 , G11B5/716 , G11B5/718 , G11B5/842 , Y10S428/90
摘要： A magnetic recording disk comprising a non-magnetic substrate and two or more firmly adhering magnetizable layers applied to one or both sides thereof, the layer located directly on the substrate being magnetically isotropic, while the second layer and any additional layers exhibit orientation of the anisotropic magnetic particles parallel to the substrate and to the envisaged recording direction.
摘要翻译：磁记录盘包括非磁性基底和两个或更多个牢固粘附的可磁化层，其被施加到其一侧或两侧，直接位于基底上的层是磁性各向同性的，而第二层和任何附加层呈现各向异性磁性颗粒平行于衬底和设想的记录方向。

3. 发明授权

US4201149A Apparatus for spin coating in the production of thin magnetic layers for magnetic discs 失效
标题翻译：用于制造磁盘薄磁层的旋涂装置
公开(公告)号：US4201149A
公开(公告)日：1980-05-06
申请号：US946355
申请日：1978-09-27
申请人： Eberhard Koester , Paul Deigner , Roland Falk , Karl Uhl , Dieter Schaefer , Dieter Mayer , Herbert Motz , Peter Felleisen
发明人： Eberhard Koester , Paul Deigner , Roland Falk , Karl Uhl , Dieter Schaefer , Dieter Mayer , Herbert Motz , Peter Felleisen
IPC分类号： G11B5/842 , B05C11/08
CPC分类号： G11B5/842
摘要： The invention relates to an improved apparatus for the manufacture of magnetic discs carrying very thin magnetic layers, by applying a fluid dispersion of magnetic materials in a binder mixture to rigid base discs by the spin-coating process. Above the side of the base disc which is to be provided with the magnetic layer, there are arranged means which produce an aerodynamic boundary layer above the discs during rotation of the latter. This avoids the formation of surface irregularities and of coating streaks during production of the layer by spin-coating.
摘要翻译：本发明涉及一种用于制造承载非常薄的磁性层的磁盘的改进装置，通过旋涂法将粘合剂混合物中的磁性材料的流体分散体施加到刚性基底盘上。在要设置有磁性层的基盘的侧面之上，设置有在盘的旋转期间在盘上方产生空气动力学边界层的装置。这避免了在通过旋涂生产层期间形成表面不规则和涂层条纹。

4. 发明授权

US3961990A Manufacture of magnetic materials which exhibit exchange anisotropy 失效
标题翻译：磁性材料的制造交付交易
公开(公告)号：US3961990A
公开(公告)日：1976-06-08
申请号：US535578
申请日：1974-12-23
申请人： Eberhard Koester , Gerd Wunsch , Paul Deigner , Karl Uhl , Werner Stumpfi , Werner Steck
发明人： Eberhard Koester , Gerd Wunsch , Paul Deigner , Karl Uhl , Werner Stumpfi , Werner Steck
IPC分类号： G11B5/62 , C04B35/26 , C09D5/23 , C09D7/12 , H01F1/04 , H01F1/06 , H01F1/09 , H01F1/12
CPC分类号： C04B35/2666 , H01F1/0009 , H01F1/04 , H01F1/09 , H01F1/12
摘要： A process for the manufacture of magnetic materials containing a phase A with a ferromagnetic spin system, of composition Co.sub.x Ni.sub.1.sub.-x and a phase B with an antiferromagnetic spin system of composition (CoO).sub.x (NiO).sub.1.sub.-x , with values of x from 0.05 to 0.96, the phases A and B showing exchange interaction. The materials are manufactured by surface oxidation of starting materials having a ferromagnetic layer, at least on the surface but optionally extending deeper, of composition A, to produce the antiferromagnetic phase B, nitrous oxide being used as the oxidant. Magnetic materials thus obtained have an asymmetrical hysteresis loop, which manifests itself at different temperatures, namely the particular Neel temperature of the phase B, which depends on the composition of the phases which varies in accordance with the values of x.

5. 发明授权

US4177317A Stabilization of chromium dioxide magnetic pigments 失效
标题翻译：二氧化铬磁性颜料的稳定化
公开(公告)号：US4177317A
公开(公告)日：1979-12-04
申请号：US801162
申请日：1977-05-20
申请人： Eduard Schoenafinger , Paul Deigner , Eberhard Koester , Manfred Ohlinger , Dieter Schaefer , Werner Stumpfi , Juergen Amort , Claus-Dietrich Seiler , Heinz Nestler , Otto Ambros
发明人： Eduard Schoenafinger , Paul Deigner , Eberhard Koester , Manfred Ohlinger , Dieter Schaefer , Werner Stumpfi , Juergen Amort , Claus-Dietrich Seiler , Heinz Nestler , Otto Ambros
IPC分类号： G11B5/706 , G11B5/712 , H01F10/02
CPC分类号： G11B5/712 , G11B5/70636 , Y10S428/90 , Y10T428/2995
摘要： Chromium dioxide magnetic pigments can be stabilized against the loss of their magnetic properties by treating them, in alcoholic aqueous suspension, with a silane or a hydrolysis product thereof, so that when the pigment is isolated from the suspension medium the particles bear at least partially hydrolyzed silane on their surfaces, and then drying the magnetic pigment at from 50.degree. to 200.degree. C.
摘要翻译：二氧化铬磁性颜料可以通过在醇水悬浮液中用硅烷或其水解产物处理来稳定其磁性能的损失，使得当颜料从悬浮介质中分离时，颗粒至少部分水解硅烷，然后在50〜200℃干燥磁性颜料。

6. 发明授权

US4017303A Manufacture of acicular ferromagnetic metal pigments containing iron 失效
标题翻译：制造含铁的针状铁磁性金属颜料
公开(公告)号：US4017303A
公开(公告)日：1977-04-12
申请号：US595563
申请日：1975-07-14
申请人： Eberhard Koester , Gerd Wunsch , Paul Deigner , Werner Stumpfi , Hans Henning Schneehage
发明人： Eberhard Koester , Gerd Wunsch , Paul Deigner , Werner Stumpfi , Hans Henning Schneehage
IPC分类号： B22F9/22 , C09C1/62 , H01F1/06 , B22F9/00
CPC分类号： C09C1/62 , C01P2006/42
摘要： A process for the manufacture of acicular ferromagnetic metal pigments containing iron, having a reduced field strength distribution and a steeper residual magnetization curve, by applying an alkaline earth metal cation and an organic compound having at least one group capable of forming a chelate to appropriate acicular iron oxides and then reducing the treated oxides.
摘要翻译：通过将碱土金属阳离子和具有至少一个能够形成螯合基团的有机化合物施加到适当的针状物上，制造含铁的针状铁磁性金属颜料的方法，其具有降低的场强分布和更陡的剩余磁化曲线氧化铁，然后还原经处理的氧化物。

7. 发明授权

US4382244A Device for magnetically orienting the magnetizable particles or magnetic recording media in a preferred direction 失效
标题翻译：用于在优选方向上磁化定向可磁化颗粒或磁记录介质的装置
公开(公告)号：US4382244A
公开(公告)日：1983-05-03
申请号：US242560
申请日：1981-03-11
申请人： Eberhard Koester , Paul Deigner , Dieter Schaefer , Karl Uhl , Roland Falk
发明人： Eberhard Koester , Paul Deigner , Dieter Schaefer , Karl Uhl , Roland Falk
IPC分类号： G11B5/845 , H01F7/20
CPC分类号： G11B5/845
摘要： A device for magnetically orienting the magnetizable particles of magnetic recording media in a preferred direction, which media are obtained by applying a coating of anisotropically magnetic particles finely dispersed in a solution of an organic binder system and conventional additives to a non-magnetic base, and subsequently solidifying the coating, by the action, on the still fluid coating, of the magnetic fields produced by two E-shaped electromagnets arranged symmetrically with respect to, and in mirror-image relationship to, the plane of the said coating.
摘要翻译：一种用于沿优选方向磁性取向磁记录介质的可磁化颗粒的装置，所述介质通过将微分散在有机粘合剂体系和常规添加剂的溶液中的各向异性磁性颗粒的涂层施加到非磁性基底而获得，以及随后通过对所述涂层的平面相对于所述涂层的平面和镜像关系对称地布置的两个E形电磁体产生的磁场，在静止流体涂层上固化涂层。

8. 发明授权

US3984763A Device for the non-destructive measurement of the remanent flux density of magnetic recording media, especially magnetic discs 失效
标题翻译：用于无损测量磁记录介质，特别是磁盘的剩磁通密度的装置
公开(公告)号：US3984763A
公开(公告)日：1976-10-05
申请号：US618041
申请日：1975-09-30
申请人： Eberhard Koester , Paul Deigner , Roland Falk , Georg Huber , Karl Uhl
发明人： Eberhard Koester , Paul Deigner , Roland Falk , Georg Huber , Karl Uhl
IPC分类号： G01R33/12 , G11B5/00 , G11B5/84
CPC分类号： G01R33/1207
摘要： The invention concerns a device for the non-destructive measurement of the remanent flux density of magnetic recording media, by recording a specific signal and reproducing the recorded signal by means of two pairs of magnetic recording and playback heads arranged opposite one another and perpendicular to the plane of the recording medium, the ratio of the distance between the individual magnetic heads of each pair of heads to the wavelength of the recorded signal being within a specific range, and the said distance being such that a magnetic recording medium is movable symmetrically between the pair of heads, a common measuring unit being associated with the playback pair. Further features of the device relate to the design of the magnetic recording and playback heads, the measuring unit and the rate at which the particular magnetic recording medium being tested moves between the pairs of heads.
摘要翻译：本发明涉及用于通过记录特定信号和通过两对磁记录和重放头相互重叠并垂直于磁记录介质的磁记录和重放头对磁记录介质的剩余通量密度进行非破坏性测量的装置。记录介质的平面，每对磁头的各个磁头与记录信号的波长之间的距离的比例在特定范围内，并且所述距离使得磁记录介质在一对头，与播放对相关联的公共测量单元。该装置的其他特征涉及磁记录和重放头，测量单元的设计以及被测试的特定磁记录介质在两对磁头之间移动的速率。

9. 发明授权

US4003336A Device for the magnetic orientation of magnetic recording media 失效
标题翻译：磁记录介质的磁性定向装置
公开(公告)号：US4003336A
公开(公告)日：1977-01-18
申请号：US604129
申请日：1975-08-13
申请人： Eberhard Koester , Paul Deigner , Roland Falk , Karl Uhl , Dieter Schaefer
发明人： Eberhard Koester , Paul Deigner , Roland Falk , Karl Uhl , Dieter Schaefer
IPC分类号： G11B5/845 , B05C11/00
CPC分类号： G11B5/845
摘要： A device for manufacturing magnetic recording media in which the magnetic particles in the recording layer are oriented in a preferred direction, the fluid coating applied to the base being subjected to the action of a magnetic field produced in the air gaps between the spaced apart poles of two magnetic circuits, one on each side of the coated face, arranged symmetrically with respect to the plane of the coated base, the edges of the poles adjacent to the coated base terminating in screening elements shaped in such a way that the distance between the surfaces of the screening elements facing the coated base and the coated base itself increases as the screening elements extend away from the edges of the poles. A high degree of magnetic anisotropy in the recording layer can also be obtained when the magnetic circuits are at a relatively large distance from the still fluid magnetic coating.
摘要翻译：一种用于制造磁记录介质的装置，其中记录层中的磁性颗粒沿优选方向取向，施加到基底的流体涂层受到在间隔开的极间的空隙中产生的磁场的作用相对于被涂覆的基体的平面对称地布置有两个磁路，一个在涂覆面的每一侧上，与被涂覆的基底相邻的极点的边缘终止于以这样的方式成形的屏蔽元件：面向涂覆的基底的筛选元件和涂覆的基底本身随着筛分元件远离极的边缘而增加。当磁路距离静止流体磁性涂层相对较大的距离时，也可以获得记录层中的高度的磁各向异性。

10. 发明授权

US3959032A Magnetic materials with exchange anisotropy and process for their manufacture 失效
标题翻译：具有交换各向异性的磁性材料及其制造方法
公开(公告)号：US3959032A
公开(公告)日：1976-05-25
申请号：US535577
申请日：1974-12-23
申请人： Eberhard Koester , Gerd Wunsch , Paul Deigner , Dieter Graw , Karl Uhl , Werner Steck
发明人： Eberhard Koester , Gerd Wunsch , Paul Deigner , Dieter Graw , Karl Uhl , Werner Steck
IPC分类号： G11B5/62 , C09D5/23 , C09D7/12 , G11B5/706 , H01F1/06 , H01F1/09 , H01F1/33
CPC分类号： H01F1/09 , G11B5/70621 , H01F1/0009
摘要： Magnetic materials which essentially consist of a phase A with a ferromagnetic spin system and a phase B with an anti-ferromagnetic spin system, phases A and B interacting by exchange coupling, and the manufacture of such materials. The materials consist essentially of two-phase magnetic single-domain particles, with the alloy [Co.sub.x Ni.sub.1.sub.-x ] as the ferromagnetic phase A and its oxidized form [(CoO).sub.x (NiO).sub.1.sub.-x ] as the anti-ferromagnetic phase B, with values of x of 0.04 to 0.96. They are manufactured by surface oxidation of a pigment layer, which at least covers the surface but may extend deeper, having the composition of phase A, to form an oxide layer, at least 40 A thick, of the phase B, followed by heating in an inert gas atmosphere, or by reduction of a corresponding layer of phase B to a layer of phase A. Magnetic single-domain particles of this composition have a Neel temperature which varies with X. As a result, materials are obtained which have an asymmetrical hysteresis loop, attributable to exchange anisotropy, at temperatures which can be varied within wide limits in accordance with the intended use of the material.
摘要翻译：磁性材料基本上由具有铁磁自旋系统的相A和具有反铁磁旋转系统的相B组成，A相和B相通过交换耦合相互作用，并且制造这种材料。这些材料基本上由两相磁性单畴粒子组成，合金[CoxNi1-x]作为铁磁相A，其氧化形式[（CoO）x（NiO）1-x]作为反铁磁相B ，值x为0.04至0.96。它们通过颜料层的表面氧化制造，颜料层至少覆盖表面但可以延伸得更深，具有相A的组成，以形成相B的至少40μA的氧化物层，随后加热惰性气体气氛，或通过将相B的相应层减少到相A层。该组合物的磁性单畴颗粒具有随X变化的Neel温度。结果，获得具有不对称性的材料可归因于交换各向异性的磁滞回线，其温度可以根据材料的预期用途在宽范围内变化。

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