DE3854990D1 - Magnetischer Aufzeichnungsträger - Google Patents

Magnetischer Aufzeichnungsträger

Info

Publication number
DE3854990D1
DE3854990D1 DE3854990T DE3854990T DE3854990D1 DE 3854990 D1 DE3854990 D1 DE 3854990D1 DE 3854990 T DE3854990 T DE 3854990T DE 3854990 T DE3854990 T DE 3854990T DE 3854990 D1 DE3854990 D1 DE 3854990D1
Authority
DE
Germany
Prior art keywords
record carrier
magnetic record
magnetic
carrier
record
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
DE3854990T
Other languages
English (en)
Other versions
DE3854990T2 (de
Inventor
Tsuyoshi Maro
Osamu Kitakami
Hideo Fujiwara
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.)
Maxell Holdings Ltd
Original Assignee
Hitachi Maxell Ltd
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 JP27231088A external-priority patent/JP2684201B2/ja
Application filed by Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Application granted granted Critical
Publication of DE3854990D1 publication Critical patent/DE3854990D1/de
Publication of DE3854990T2 publication Critical patent/DE3854990T2/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
    • G11B5/68—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
    • 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
    • G11B5/7028—Additives, e.g. crosslinking agents
    • 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
    • G11B5/706—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 composition of the magnetic material
    • G11B5/70605—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 composition of the magnetic material metals or alloys
    • 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
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/725—Protective coatings, e.g. anti-static or antifriction containing a lubricant, e.g. organic compounds
    • 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
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • G11B5/7371—Non-magnetic single underlayer comprising nickel
    • 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
    • Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer
    • 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]
    • Y10T428/31652—Of asbestos
    • Y10T428/31663—As siloxane, silicone or silane

Landscapes

  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Magnetic Record Carriers (AREA)
DE3854990T 1987-11-26 1988-11-24 Magnetischer Aufzeichnungsträger Expired - Fee Related DE3854990T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP29837187 1987-11-26
JP10730288 1988-04-28
JP27231088A JP2684201B2 (ja) 1987-11-26 1988-10-28 磁気記録媒体

Publications (2)

Publication Number Publication Date
DE3854990D1 true DE3854990D1 (de) 1996-03-21
DE3854990T2 DE3854990T2 (de) 1996-06-13

Family

ID=27310948

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3854990T Expired - Fee Related DE3854990T2 (de) 1987-11-26 1988-11-24 Magnetischer Aufzeichnungsträger

Country Status (3)

Country Link
US (1) US5068152A (de)
EP (1) EP0318004B1 (de)
DE (1) DE3854990T2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5811182A (en) * 1991-10-04 1998-09-22 Tulip Memory Systems, Inc. Magnetic recording medium having a substrate and a titanium nitride underlayer
DE59207251D1 (de) * 1991-12-21 1996-10-31 Basf Magnetics Gmbh Magnetische Aufzeichnungsträger
JPH05304026A (ja) * 1992-02-29 1993-11-16 Sony Corp 軟磁性薄膜とこれを用いた磁気ヘッド
JPH07161034A (ja) * 1993-04-13 1995-06-23 Matsushita Electric Ind Co Ltd 磁気記録媒体
US5679473A (en) * 1993-04-01 1997-10-21 Asahi Komag Co., Ltd. Magnetic recording medium and method for its production
US6506130B2 (en) 1993-06-01 2003-01-14 Spalding Sports Worldwide, Inc. Multi layer golf ball
US5552204A (en) * 1995-01-13 1996-09-03 International Business Machines Corporation Magnetic disk with boron carbide overcoat layer
US5562965A (en) * 1995-06-07 1996-10-08 Seagate Technologies, Inc. Vapor lubrication of fractionated lubricant on thin film discs
JP2002146516A (ja) * 2000-11-07 2002-05-22 Sony Corp 有機薄膜の蒸着方法
AU2003213353A1 (en) * 2002-03-15 2003-09-29 Canon Kabushiki Kaisha Porous material and process for producing the same
WO2003078688A1 (en) * 2002-03-15 2003-09-25 Canon Kabushiki Kaisha Porous material and process for producing the same
JP4454931B2 (ja) * 2002-12-13 2010-04-21 キヤノン株式会社 ドットパターンを有する基板の製造方法及び柱状構造体の製造方法
US8372489B2 (en) * 2007-09-28 2013-02-12 Tel Epion Inc. Method for directional deposition using a gas cluster ion beam
US20090233004A1 (en) * 2008-03-17 2009-09-17 Tel Epion Inc. Method and system for depositing silicon carbide film using a gas cluster ion beam
US8202435B2 (en) * 2008-08-01 2012-06-19 Tel Epion Inc. Method for selectively etching areas of a substrate using a gas cluster ion beam

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5151908A (de) * 1974-11-01 1976-05-07 Fuji Photo Film Co Ltd
JPS567237A (en) * 1979-07-02 1981-01-24 Fuji Photo Film Co Ltd Magnetic recording medium and its production
JPS57143729A (en) * 1981-02-27 1982-09-06 Fuji Photo Film Co Ltd Magnetic recording medium
JPS58218041A (ja) * 1982-06-11 1983-12-19 Hitachi Condenser Co Ltd 磁気記録媒体
JPS60131629A (ja) * 1983-12-19 1985-07-13 Matsushita Electric Ind Co Ltd 磁気記録媒体
JPS60143431A (ja) * 1983-12-29 1985-07-29 Alps Electric Co Ltd 垂直磁気記録媒体
JPS62128019A (ja) * 1985-11-28 1987-06-10 Sony Corp 磁気記録媒体
JP2523279B2 (ja) * 1986-05-02 1996-08-07 ティーディーケイ株式会社 磁気記録媒体およびその製造方法

Also Published As

Publication number Publication date
EP0318004A3 (en) 1990-10-10
DE3854990T2 (de) 1996-06-13
EP0318004B1 (de) 1996-02-07
US5068152A (en) 1991-11-26
EP0318004A2 (de) 1989-05-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee