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公开(公告)号：JPH10283630A
公开(公告)日：1998-10-23
申请号：JP8609098
申请日：1998-03-31
Applicant: EMTEC MAGNETICS GMBH
Inventor： GOETZ KLAUS , JAKUSCH HELMUT DR , LOCH WERNER DR , HOFFMANN ERICH , GOTTMANN HANS-GEORG , JENOR HANS-JOACHIM , VOIT JOHANN DR
Abstract: PROBLEM TO BE SOLVED: To obtain a magnetic recording medium with which the audible linear distortions in association with a Dolby noise suppression system are eliminated, the production is simplified and the output levels at low frequencies and high frequencies are improved. SOLUTION: This magnetic recording medium consists of a nonmagnetic base 1 and at least two magnetic layers 2, 3 formed on this nonmagnetic base 1. These two layers 2, 3 contain magnetizable metal oxides as magnetic pigments. These magnetic pigments consist of cobalt-contg. FeOx (1.33
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公开(公告)号：BR9607762A
公开(公告)日：1999-11-30
申请号：BR9607762
申请日：1996-03-18
Applicant: EMTEC MAGNETICS GMBH
Inventor： LEHNER AUGUST , JAKUSCH HELMUT , KOCH VOLKER , OHLINGER MANFRED , KOHL ALBERT , LENZ WERNER , SCHNEIDER NORBERT , HEILMANN PETER , VEITCH RONALD JOHN , HOFFMANN ERICH , BNER WERNER H , JACHOW HARALD , LEHNERT RUDI
IPC: B32B27/20 , B32B33/00 , C01G37/02 , G11B5/708 , G11B5/73 , G11B5/733 , G11B5/738 , G11B5/78 , G11B5/704
Abstract: Tape-like magnetic recording media having a nonmagnetic substrate and at least one layer applied to the substrate having incorporated into at least one of these layers, an inorganic needle-shaped pigment which serves as a supporting pigment and has a ratio of the average length to the average diameter of the pigment of at least 3, and the mean modulus of elasticity of the layers is not less than 15 Gpa in the longitudinal direction of the tape-like recording media.
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公开(公告)号：AU5110196A
公开(公告)日：1996-10-16
申请号：AU5110196
申请日：1996-03-18
Applicant: EMTEC MAGNETICS GMBH
Inventor： LEHNER AUGUST , KOCH VOLKER , OHLINGER MANFRED , LENZ WERNER , SCHNEIDER NORBERT , HEILMANN PETER , HOFFMANN ERICH , VEITCH RONALD JOHN , HUBNER WERNER , JACHOW HARALD , LEHNERT RUDI
IPC: B32B27/20 , B32B33/00 , C01G37/02 , G11B5/708 , G11B5/73 , G11B5/733 , G11B5/738 , G11B5/78 , G11B5/704
Abstract: Tape-like magnetic recording media having a nonmagnetic substrate and at least one layer applied to the substrate having incorporated into at least one of these layers, an inorganic needle-shaped pigment which serves as a supporting pigment and has a ratio of the average length to the average diameter of the pigment of at least 3, and the mean modulus of elasticity of the layers is not less than 15 Gpa in the longitudinal direction of the tape-like recording media.
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公开(公告)号：DE59604372D1
公开(公告)日：2000-03-09
申请号：DE59604372
申请日：1996-03-18
Applicant: EMTEC MAGNETICS GMBH
Inventor： LEHNER AUGUST , JAKUSCH HELMUT , KOCH VOLKER , OHLINGER MANFRED , KOHL ALBERT , LENZ WERNER , SCHNEIDER NORBERT , HEILMANN PETER , VEITCH JOHN , HOFFMANN ERICH , HUEBNER WERNER , JACHOW HARALD , LEHNERT RUDI
Abstract: Tape-like magnetic recording media having a nonmagnetic substrate and at least one layer applied to the substrate having incorporated into at least one of these layers, an inorganic needle-shaped pigment which serves as a supporting pigment and has a ratio of the average length to the average diameter of the pigment of at least 3, and the mean modulus of elasticity of the layers is not less than 15 Gpa in the longitudinal direction of the tape-like recording media.
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公开(公告)号：EA000248B1
公开(公告)日：1999-02-25
申请号：EA199700217
申请日：1996-03-18
Applicant: EMTEC MAGNETICS GMBH
Inventor： LEHNER AUGUST , JAKUSCH HELMUT , KOCH VOLKER , OHLINGER MANFRED , KOHL ALBERT , LENZ WERNER , SCHNEIDER NORBERT , HEILMANN PETER , VEITCH RONALD JOHN , HOFFMANN ERICH , HUEBNER WERNER , JACHOW HARALD , LEHNERT RUDI
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Patent Agency Ranking
公开(公告)号：CA2215259A1
公开(公告)日：1996-10-03
申请号：CA2215259
申请日：1996-03-18
Applicant: EMTEC MAGNETICS GMBH
Inventor： HOFFMANN ERICH , HEILMANN PETER , SCHNEIDER NORBERT , LENZ WERNER , JACHOW HARALD , LEHNERT RUDI , OHLINGER MANFRED , JAKUSCH HELMUT , VEITCH RONALD JOHN , KOHL ALBERT , LEHNER AUGUST , KOCH VOLKER , HUEBNER WERNER
IPC: B32B27/20 , B32B33/00 , C01G37/02 , G11B5/708 , G11B5/73 , G11B5/733 , G11B5/738 , G11B5/78 , G11B5/704
Abstract: 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).
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公开(公告)号：DE59904894D1
公开(公告)日：2003-05-08
申请号：DE59904894
申请日：1999-07-24
Applicant: EMTEC MAGNETICS GMBH
Inventor： ILMER ANDREAS , LENZ WERNER , KRESS RIA , HEILMANN PETER , VEITCH RONALD , JAKUSCH HELMUT , HOFFMANN ERICH
Abstract: Digital recording procedures wherein the recording support is not exposed to an obliterating magnetic field before recording are known in recent times. Such recording supports must therefore have good rewrite capability. It has been found that said requirement is fulfilled by two-layered recording supports, wherein the top layer contains a metal or metal alloy powder and has a density of less than 0.3 mu m and wherein the bottom layer contains a magnetic pigment. The coercitive force of the bottom layer has at the most two thirds the coercitive force of the top layer and the remanent magnetization of the bottom layer is at least 32 kA/m.
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公开(公告)号：PT818040E
公开(公告)日：2000-07-31
申请号：PT96907496
申请日：1996-03-18
Applicant: EMTEC MAGNETICS GMBH
Inventor： KOCH VOLKER , HEILMANN PETER , JANNACH HELMUT , KOHL ALBERT , LEHNER AUGUST , OHLINGER MANFRED , LENZ WERNER , SCHNEIDER NORBERT , VEITCH RONALD JOHN , HOFFMANN ERICH , HUBNER WERNER , JACHOW HARALD , LEHNERT RUDI
Abstract: Tape-like magnetic recording media having a nonmagnetic substrate and at least one layer applied to the substrate having incorporated into at least one of these layers, an inorganic needle-shaped pigment which serves as a supporting pigment and has a ratio of the average length to the average diameter of the pigment of at least 3, and the mean modulus of elasticity of the layers is not less than 15 Gpa in the longitudinal direction of the tape-like recording media.
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公开(公告)号：NO974467A
公开(公告)日：1997-11-26
申请号：NO974467
申请日：1997-09-26
Applicant: EMTEC MAGNETICS GMBH
Inventor： LEHNER AUGUST , JAKUSCH HELMUT , KOCH VOLKER , OHLINGER MANFRED , KOHL ALBERT , LENZ WERNER , SCHNEIDER NORBERT , HEILMANN PETER , VEITCH JOHN RONALD , HOFFMANN ERICH , HUEBNER WERNER , JACHOW HARALD , LEHNERT RUDI
IPC: B32B27/20 , B32B33/00 , C01G37/02 , G11B5/708 , G11B5/73 , G11B5/733 , G11B5/738 , G11B5/78 , G11B5/704
CPC classification number: G11B5/708 , G11B5/733 , G11B5/738 , Y10S428/90 , Y10T428/256 , Y10T428/257
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公开(公告)号：AT236446T
公开(公告)日：2003-04-15
申请号：AT99941459
申请日：1999-07-24
Applicant: EMTEC MAGNETICS GMBH
Inventor： ILMER ANDREAS , LENZ WERNER , KRESS RIA , HEILMANN PETER , VEITCH RONALD , JAKUSCH HELMUT , HOFFMANN ERICH
Abstract: Digital recording procedures wherein the recording support is not exposed to an obliterating magnetic field before recording are known in recent times. Such recording supports must therefore have good rewrite capability. It has been found that said requirement is fulfilled by two-layered recording supports, wherein the top layer contains a metal or metal alloy powder and has a density of less than 0.3 mu m and wherein the bottom layer contains a magnetic pigment. The coercitive force of the bottom layer has at the most two thirds the coercitive force of the top layer and the remanent magnetization of the bottom layer is at least 32 kA/m.
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