FR2437667A1 - Support d'enregistrement magnetique - Google Patents

Support d'enregistrement magnetique

Info

Publication number
FR2437667A1
FR2437667A1 FR7827700A FR7827700A FR2437667A1 FR 2437667 A1 FR2437667 A1 FR 2437667A1 FR 7827700 A FR7827700 A FR 7827700A FR 7827700 A FR7827700 A FR 7827700A FR 2437667 A1 FR2437667 A1 FR 2437667A1
Authority
FR
France
Prior art keywords
layer
magnetic recording
support
recording medium
chrome
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.)
Granted
Application number
FR7827700A
Other languages
English (en)
Other versions
FR2437667B1 (fr
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.)
IWASAKI SHIN ICHI
Original Assignee
IWASAKI SHIN ICHI
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
Application filed by IWASAKI SHIN ICHI filed Critical IWASAKI SHIN ICHI
Publication of FR2437667A1 publication Critical patent/FR2437667A1/fr
Application granted granted Critical
Publication of FR2437667B1 publication Critical patent/FR2437667B1/fr
Granted 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
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
    • G11B5/676—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having magnetic layers separated by a nonmagnetic layer, e.g. antiferromagnetic layer, Cu layer or coupling 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

A.SUPPORT D'ENREGISTREMENT MAGNETIQUE. B.SUPPORT CARACTERISE EN CE QU'IL SE COMPOSE D'UNE PREMIERE COUCHE FORMANT UNE SURFACE DE SUPPORT DESTINEE A ETRE TOURNEE VERS LA TETE D'ENREGISTREMENT ET QUI EST FORMEE D'UN ALLIAGE CHROME-COBALT CONTENANT ENTRE ENVIRON 5 ET 25 EN POIDS DE CHROME, AVEC UN AXE D'AIMANTATION FACILE ESSENTIELLEMENT PERPENDICULAIRE A LA SURFACE, L'EPAISSEUR DE CETTE PREMIERE COUCHE NE DEPASSANT PAS 3,0MICRONS, AINSI QUE D'UNE SECONDE COUCHE FORMEE D'UNE MATIERE A FAIBLE FORCE COERCITIVE PLACEE SUR LE COTE DE LA PREMIERE COUCHE QUI N'EST PAS TOURNEE VERS LA TETE D'ENREGISTREMENT, ET QUI A UNE FORCE COERCITIVE QUI NE DEPASSE PAS 15 DE LA FORCE COERCITIVE DE LA PREMIERE COUCHE, L'EPAISSEUR DE LA SECONDE COUCHE ETANT AU MOINS EGALES A 0,1MICRON.
FR7827700A 1977-09-30 1978-09-27 Support d'enregistrement magnetique Granted FR2437667A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52118424A JPS5891B2 (ja) 1977-09-30 1977-09-30 磁気記録媒体

Publications (2)

Publication Number Publication Date
FR2437667A1 true FR2437667A1 (fr) 1980-04-25
FR2437667B1 FR2437667B1 (fr) 1985-04-19

Family

ID=14736290

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7827700A Granted FR2437667A1 (fr) 1977-09-30 1978-09-27 Support d'enregistrement magnetique

Country Status (7)

Country Link
US (1) US4210946A (fr)
JP (1) JPS5891B2 (fr)
CA (1) CA1112359A (fr)
DE (1) DE2842609A1 (fr)
FR (1) FR2437667A1 (fr)
GB (1) GB2006508B (fr)
NL (1) NL187506C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474737A1 (fr) * 1980-01-30 1981-07-31 Anelva Corp Milieu d'enregistrement magnetique comprenant du nickel, du cobalt et du chrome de facon a obtenir une anisotropie magnetique perpendiculaire

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DE2827870A1 (de) * 1978-06-24 1980-01-10 Ibm Deutschland Magnetischer aufzeichnungstraeger mit vertikaler aufzeichnung
JPS5827859Y2 (ja) * 1979-03-01 1983-06-17 日産自動車株式会社 給電トロリの防塵機構
JPS55153142A (en) * 1979-05-15 1980-11-28 Olympus Optical Co Ltd Magnetic recording and reproducing device
JPS5644109A (en) * 1979-09-17 1981-04-23 Toshiba Corp Magnetic recording and reproducing system
US4383284A (en) * 1979-12-14 1983-05-10 Tokyo Shibaura Denki Kabushiki Kaisha Perpendicular magnetic head and method of manufacturing the same
JPS5782227A (en) * 1980-11-11 1982-05-22 Matsushita Electric Ind Co Ltd Magnetic recording medium
JPS56127929A (en) * 1980-03-07 1981-10-07 Matsushita Electric Ind Co Ltd Magnetic recording medium
US4429016A (en) * 1980-03-07 1984-01-31 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium with vacuum deposited magnetic layer
JPS56127930A (en) * 1980-03-10 1981-10-07 Matsushita Electric Ind Co Ltd Magnetic recording medium
US4367257A (en) * 1980-04-16 1983-01-04 Fuji Photo Film Co., Ltd. Thin magnetic recording medium
JPS56148729A (en) * 1980-04-21 1981-11-18 Fuji Photo Film Co Ltd Magnetic recording medium
JPS5715204A (en) * 1980-06-30 1982-01-26 Sharp Corp Photomagnetic recording and reproducing device
JPS5734324A (en) * 1980-08-08 1982-02-24 Teijin Ltd Manufacture of vertically magnetized film
JPS5745208A (en) * 1980-09-01 1982-03-15 Tdk Corp Magnetic recording medium
JPS5758226A (en) * 1980-09-22 1982-04-07 Toshiba Corp Magnetic recording medium
JPS5769541A (en) * 1980-10-17 1982-04-28 Olympus Optical Co Ltd Recording medium and recording and reproducing system using sand medium
JPS57109127A (en) * 1980-12-05 1982-07-07 Matsushita Electric Ind Co Ltd Magnetic recording medium
JPS57100627A (en) * 1980-12-12 1982-06-22 Teijin Ltd Manufacture of vertical magnetic recording medium
EP0070907A4 (fr) * 1981-02-08 1983-06-08 Akio Ohtsubo Tete magnetique a un seul pole du type a enregistrement vertical.
JPS57170505A (en) * 1981-04-13 1982-10-20 Nippon Gakki Seizo Kk Tape for magnetic recording
JPS57195327A (en) * 1981-05-26 1982-12-01 Fuji Photo Film Co Ltd Magnetic recording medium
JPS5819474A (ja) * 1981-07-27 1983-02-04 Victor Co Of Japan Ltd 機能性メツキ膜の製法
US4745509A (en) * 1981-08-21 1988-05-17 Matsushita Electric Industrial Company, Limited Magnetic head with improved supporter for perpendicular magnetization recording
JPS5834903A (ja) * 1981-08-27 1983-03-01 Tdk Corp 磁気記録媒体
US4388367A (en) * 1981-09-28 1983-06-14 Xerox Corporation Perpendicular magnetic recording medium and fabrication
JPS5862823A (ja) * 1981-10-08 1983-04-14 Nec Corp 垂直磁気記憶体
JPS5864634A (ja) * 1981-10-13 1983-04-18 Hitachi Maxell Ltd 磁気記録媒体
JPS5867006A (ja) * 1981-10-19 1983-04-21 Yoshifumi Sakurai 積層垂直磁化膜
JPS5896706A (ja) * 1981-12-04 1983-06-08 Tdk Corp 磁気記録媒体
US4675224A (en) * 1981-12-26 1987-06-23 Seiko Epson Kabushiki Kaisha Magnetic recording medium
JPS58130440A (ja) * 1982-01-29 1983-08-03 Seiko Epson Corp 磁気デイスク
JPS58141433A (ja) * 1982-02-16 1983-08-22 Teijin Ltd 磁気記録媒体とその製造方法
US4520413A (en) * 1982-04-13 1985-05-28 Minnesota Mining And Manufacturing Company Integrated magnetostrictive-piezoelectric-metal oxide semiconductor magnetic playback head
US4404247A (en) * 1982-07-02 1983-09-13 Minnesota Mining And Manufacturing Company Protective covering for magnetic recording medium
US4621030A (en) * 1982-07-19 1986-11-04 Hitachi, Ltd. Perpendicular magnetic recording medium and manufacturing method thereof
US4541026A (en) * 1982-07-20 1985-09-10 Vertimag Systems Corporation Hybrid read-write head for perpendicular recording media
JPH07105027B2 (ja) * 1982-10-01 1995-11-13 株式会社日立製作所 垂直磁気記録媒体
US4472248A (en) * 1982-12-20 1984-09-18 Minnesota Mining And Manufacturing Company Method of making thin-film magnetic recording medium having perpendicular anisotropy
JPS59142737A (ja) * 1983-02-02 1984-08-16 Nec Corp 磁気２重層垂直磁気記憶体
DE3465647D1 (en) * 1983-03-08 1987-10-01 Ulvac Corp A magnetic recording member and a manufacturing method for such a member
JPS59172142A (ja) * 1983-03-20 1984-09-28 Hitachi Maxell Ltd 磁気記録媒体
JPH0670858B2 (ja) * 1983-05-25 1994-09-07 ソニー株式会社 光磁気記録媒体とその製法
JPS6021508A (ja) * 1983-07-16 1985-02-02 Alps Electric Co Ltd 磁気記録媒体
US4705699A (en) * 1983-09-19 1987-11-10 Minnesota Mining And Manufacturing Company Method of coating magnetic recording media with perfluoropolyether compositions which are soluble in non-fluorinated solvents
JPS6063710A (ja) * 1983-09-19 1985-04-12 Hitachi Ltd 磁気ディスク媒体
US4671999A (en) * 1983-09-19 1987-06-09 Minnesota Mining And Manufacturing Company Magnetic recording media having perfluoropolyether coating
US4526833A (en) * 1983-10-03 1985-07-02 Minnesota Mining And Manufacturing Company Magnetic recording medium having a perfluoropolyether polymer protective coating
JPS60101710A (ja) * 1983-11-05 1985-06-05 Alps Electric Co Ltd 垂直磁気記録媒体
JPS60101709A (ja) * 1983-11-05 1985-06-05 Alps Electric Co Ltd 垂直磁気記録媒体
US4700253A (en) * 1983-11-22 1987-10-13 Minnesota Mining And Manufacturing Company Slanted pole head for magnetic recording
JPS60143431A (ja) * 1983-12-29 1985-07-29 Alps Electric Co Ltd 垂直磁気記録媒体
US5013583A (en) * 1984-02-11 1991-05-07 Teijin Limited Method of producing a magnetic recording medium
JPS60193126A (ja) * 1984-03-13 1985-10-01 Anelva Corp 垂直磁化フレキシブルデイスク
JPS61129737A (ja) * 1984-11-26 1986-06-17 Tdk Corp 磁気記録媒体の製造方法
US4729924A (en) * 1984-12-21 1988-03-08 Minnesota Mining And Manufacturing Company Metallic thin film magnetic recording medium having a hard protective layer
US4803130A (en) * 1984-12-21 1989-02-07 Minnesota Mining And Manufacturing Company Reactive sputtering process for recording media
US4717592A (en) * 1984-12-24 1988-01-05 Fuji Photo Film Co., Ltd. Vertical magnetization type recording medium and manufacturing method therefor
EP0190854A3 (fr) * 1985-01-28 1988-07-20 Toray Industries, Inc. Méthode de fabrication d'un milieu d'enregistrement magnétique perpendiculaire
JPH0640361B2 (ja) * 1985-03-07 1994-05-25 日本ビクター株式会社 垂直磁気記録再生方法
US4731300A (en) * 1985-03-07 1988-03-15 Victor Company Of Japan, Ltd. Perpendicular magnetic recording medium and manufacturing method thereof
EP0196071B1 (fr) * 1985-03-26 1990-07-18 Matsushita Electric Industrial Co., Ltd. Moyen d'enregistrement magnétique perpendiculaire
US4798765A (en) * 1985-03-28 1989-01-17 Victor Company Of Japan Ltd. Perpendicular magnetic recording medium
DE3610431A1 (de) * 1985-03-28 1986-10-02 Victor Company Of Japan, Ltd., Yokohama, Kanagawa Quermagnetisierungsaufzeichnungsmedium
JPH0727663B2 (ja) * 1985-04-03 1995-03-29 ヤマハ株式会社 光磁気記録媒体およびその製法
US4803577A (en) * 1985-06-12 1989-02-07 Tdk Corporation Vertical magnetic recording system using rigid disk
CA1254385A (fr) * 1985-07-26 1989-05-23 Noboru Sato Support d'enregistrement magneto-optique fait d'un stratifie artificiel amorphe comprenant un element de terre rare et un element de metal de transition
JPS62177721A (ja) * 1986-01-31 1987-08-04 Nec Corp 磁気記録体
JP2522246B2 (ja) * 1986-05-06 1996-08-07 ブラザー工業株式会社 薄膜磁気記録媒体の製造方法
US4966821A (en) * 1986-07-17 1990-10-30 Ricoh Company, Ltd. Perpendicular magnetic recording medium
JPS6339124A (ja) * 1986-08-01 1988-02-19 Hitachi Maxell Ltd 磁気記録媒体及びその製造方法
US5153044A (en) * 1987-02-25 1992-10-06 Komag, Inc. Magnetic disk for longitudinal recording comprising an amorphous intermediate layer
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JP2673807B2 (ja) * 1987-10-30 1997-11-05 パイオニア株式会社 光磁気記録媒体の製造方法
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WO1991000593A1 (fr) * 1989-06-28 1991-01-10 Siemens Aktiengesellschaft Dispositif a memoire magnetique avec support d'enregistrement et tete magnetique a couche mince
US5379172A (en) * 1990-09-19 1995-01-03 Seagate Technology, Inc. Laminated leg for thin film magnetic transducer
DE4442682C2 (de) * 1994-11-30 1997-12-18 Bogen Electronic Gmbh Kodierkopf zum Magnetisieren von Schichten
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US6955857B2 (en) 2000-12-29 2005-10-18 Seagate Technology Llc Exchange decoupled cobalt/noble metal perpendicular recording media
US7449255B2 (en) * 2002-09-30 2008-11-11 Seagate Technology Llc High moment directionally textured soft magnetic underlayer in a magnetic storage medium
JP4023408B2 (ja) 2003-02-04 2007-12-19 富士電機デバイステクノロジー株式会社 垂直磁気記録媒体用基板、垂直磁気記録媒体及びそれらの製造方法
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JP4539282B2 (ja) 2004-04-16 2010-09-08 富士電機デバイステクノロジー株式会社 垂直磁気記録媒体用ディスク基板及びそれを用いた垂直磁気記録媒体
JP4479528B2 (ja) 2004-07-27 2010-06-09 富士電機デバイステクノロジー株式会社 ガラス基体へのめっき方法、そのめっき方法を用いる磁気記録媒体用ディスク基板の製造方法及び垂直磁気記録媒体の製造方法

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GB671269A (en) * 1949-11-02 1952-04-30 Brush Dev Co Improvements in or relating to multi-layer magnetic record members
GB976102A (en) * 1961-02-13 1964-11-25 Sperry Rand Corp Method to produce multiple layer magnetic elements
US3219353A (en) * 1962-11-30 1965-11-23 Ibm Magnetic recording medium

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GB671269A (en) * 1949-11-02 1952-04-30 Brush Dev Co Improvements in or relating to multi-layer magnetic record members
GB976102A (en) * 1961-02-13 1964-11-25 Sperry Rand Corp Method to produce multiple layer magnetic elements
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474737A1 (fr) * 1980-01-30 1981-07-31 Anelva Corp Milieu d'enregistrement magnetique comprenant du nickel, du cobalt et du chrome de facon a obtenir une anisotropie magnetique perpendiculaire

Also Published As

Publication number Publication date
FR2437667B1 (fr) 1985-04-19
JPS5891B2 (ja) 1983-01-05
US4210946A (en) 1980-07-01
NL7809950A (nl) 1979-04-03
JPS5451804A (en) 1979-04-24
NL187506C (nl) 1991-10-16
GB2006508A (en) 1979-05-02
DE2842609C2 (fr) 1987-11-19
NL187506B (nl) 1991-05-16
CA1112359A (fr) 1981-11-10
GB2006508B (en) 1982-01-27
DE2842609A1 (de) 1979-04-12

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