DE69326441T2 - Magnetisches aufzeichnungsmedium - Google Patents

Magnetisches aufzeichnungsmedium

Info

Publication number
DE69326441T2
DE69326441T2 DE1993626441 DE69326441T DE69326441T2 DE 69326441 T2 DE69326441 T2 DE 69326441T2 DE 1993626441 DE1993626441 DE 1993626441 DE 69326441 T DE69326441 T DE 69326441T DE 69326441 T2 DE69326441 T2 DE 69326441T2
Authority
DE
Germany
Prior art keywords
recording medium
magnetic recording
magnetic
medium
recording
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE1993626441
Other languages
English (en)
Other versions
DE69326441D1 (de
Inventor
Masahide Kohno
Kazuhiro Kuroda
Yasushi Ishikawa
Hideki Sasaki
Yasufumi Takasugi
Tsunehiko Ikarashi
Osamu Inoue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Corp
Original Assignee
TDK Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP30473992A external-priority patent/JPH06131651A/ja
Priority claimed from JP30474192A external-priority patent/JP3480579B2/ja
Priority claimed from JP30474092A external-priority patent/JPH06131660A/ja
Priority claimed from JP5187299A external-priority patent/JPH0721547A/ja
Application filed by TDK Corp filed Critical TDK Corp
Application granted granted Critical
Publication of DE69326441D1 publication Critical patent/DE69326441D1/de
Publication of DE69326441T2 publication Critical patent/DE69326441T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/735—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back layer
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/702—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent
    • G11B5/7021—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent containing a polyurethane or a polyisocyanate
    • G11B5/7022—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent containing a polyurethane or a polyisocyanate containing mixtures of polyurethanes or polyisocyanates with other polymers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/702—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent
    • G11B5/7023—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent containing polyesters, polyethers, silicones, polyvinyl resins, polyacrylresins or epoxy resins
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/702—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent
    • G11B5/7026—Radiation curable polymers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/735—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back layer
    • G11B5/7356—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back layer comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31609—Particulate metal or metal compound-containing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31935—Ester, halide or nitrile of addition polymer
DE1993626441 1992-10-16 1993-10-15 Magnetisches aufzeichnungsmedium Expired - Fee Related DE69326441T2 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP30473992A JPH06131651A (ja) 1992-10-16 1992-10-16 磁気記録媒体
JP30474192A JP3480579B2 (ja) 1992-10-16 1992-10-16 磁気記録媒体
JP30474092A JPH06131660A (ja) 1992-10-16 1992-10-16 磁気記録媒体の製造方法
JP5187299A JPH0721547A (ja) 1993-06-30 1993-06-30 磁気記録媒体製造用塗料および磁気記録媒体
PCT/JP1993/001485 WO1994009491A1 (en) 1992-10-16 1993-10-15 Magnetic recording medium and production method thereof

Publications (2)

Publication Number Publication Date
DE69326441D1 DE69326441D1 (de) 1999-10-21
DE69326441T2 true DE69326441T2 (de) 2000-05-11

Family

ID=27475316

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1993626441 Expired - Fee Related DE69326441T2 (de) 1992-10-16 1993-10-15 Magnetisches aufzeichnungsmedium

Country Status (5)

Country Link
US (1) US5443913A (de)
EP (1) EP0622784B1 (de)
KR (1) KR100260600B1 (de)
DE (1) DE69326441T2 (de)
WO (1) WO1994009491A1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997023869A1 (en) * 1995-12-21 1997-07-03 Imation Corp. Magnetic recording medium having polymeric radiation cross-linking agent
DE19612769A1 (de) * 1996-03-29 1997-10-02 Basf Ag Als Trägermaterial für Festelektrolyten oder Separatoren für elektrochemische Zellen geeignete Gemische
JP3672403B2 (ja) * 1996-12-18 2005-07-20 Ｔｄｋ株式会社 磁気記録媒体
JP3698540B2 (ja) * 1998-01-23 2005-09-21 Ｔｄｋ株式会社 磁気記録媒体およびその製造方法
DE19911484B4 (de) * 1998-03-16 2008-04-03 Ricoh Co., Ltd. Material zur Anzeige der Temperatur-Vorgeschichte, Verfahren zur Herstellung desselben und Verfahren unter Verwendung desselben
US6214448B1 (en) 1998-03-31 2001-04-10 Tdk Corporation Magnetic recording medium
US6168856B1 (en) 1998-03-31 2001-01-02 Tdk Corporation Magnetic recording medium
EP1098299A1 (de) * 1999-11-02 2001-05-09 TDK Corporation Magnetisches Aufzeichnungsmedium
US20050133055A1 (en) * 2002-08-19 2005-06-23 Gus Stankovic Fluid dispensing brush
JP4116487B2 (ja) * 2003-03-31 2008-07-09 Ｔｄｋ株式会社 磁気記録テープ
JP2005203024A (ja) * 2004-01-15 2005-07-28 Fuji Photo Film Co Ltd 磁気記録媒体及びその製造方法
US7254948B2 (en) * 2005-02-21 2007-08-14 Cummins Inc. Boost wastegate device for EGR assist
JP5204249B2 (ja) * 2011-01-27 2013-06-05 富士フイルム株式会社 磁気テープ
JP6046075B2 (ja) * 2014-03-28 2016-12-14 富士フイルム株式会社 磁気記録媒体用結合剤およびその製造方法、磁気記録媒体用組成物、ならびに磁気記録媒体

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6023814A (ja) * 1983-07-19 1985-02-06 Minolta Camera Co Ltd 写真レンズ
JPS60101161A (ja) * 1983-11-08 1985-06-05 Nippon Zeon Co Ltd 磁気塗料用樹脂
JPS60238306A (ja) * 1984-05-11 1985-11-27 Nippon Zeon Co Ltd 磁性塗料及び磁気記録媒体
JPS60238371A (ja) * 1984-05-11 1985-11-27 Nippon Zeon Co Ltd 磁性塗料および磁気記録媒体
JPS60238309A (ja) * 1984-05-11 1985-11-27 Nippon Zeon Co Ltd 磁性塗料用樹脂
US4842942A (en) * 1984-08-15 1989-06-27 Toyo Boseki Kabushiki Kaisha Magnetic recording medium
JPS6177134A (ja) * 1984-09-25 1986-04-19 Toyobo Co Ltd 放射線硬化型磁気記録媒体
JPS62103845A (ja) * 1985-07-12 1987-05-14 Fuji Photo Film Co Ltd 磁気記録媒体
JPH06101111B2 (ja) * 1985-08-15 1994-12-12 東洋紡績株式会社 磁気記録媒体
JPH0682454B2 (ja) * 1985-08-21 1994-10-19 東洋紡績株式会社 放射線硬化型磁気記録媒体
US4663184A (en) * 1985-10-22 1987-05-05 Minnesota Mining And Manufacturing Company Radiation curable phosphorate ester compounds
JPS62195720A (ja) * 1986-02-21 1987-08-28 Toyobo Co Ltd 磁気記録媒体
JPS63261530A (ja) * 1987-04-20 1988-10-28 Fuji Photo Film Co Ltd 磁気記録媒体
JPS63273209A (ja) * 1987-04-30 1988-11-10 Hitachi Maxell Ltd 磁気記録媒体
JPS63279420A (ja) * 1987-05-11 1988-11-16 Fuji Photo Film Co Ltd 磁気記録媒体
JPH0760510B2 (ja) * 1987-12-18 1995-06-28 富士写真フイルム株式会社 磁気記録媒体

Also Published As

Publication number Publication date
EP0622784B1 (de) 1999-09-15
KR100260600B1 (ko) 2000-07-01
EP0622784A1 (de) 1994-11-02
WO1994009491A1 (en) 1994-04-28
US5443913A (en) 1995-08-22
DE69326441D1 (de) 1999-10-21
EP0622784A4 (de) 1995-02-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: HANSMANN & VOGESER, 81369 MUENCHEN

8339 Ceased/non-payment of the annual fee