JPH05258293A - 磁気記録媒体用ガラス基板 - Google Patents

磁気記録媒体用ガラス基板

Info

Publication number
JPH05258293A
JPH05258293A JP5020162A JP2016293A JPH05258293A JP H05258293 A JPH05258293 A JP H05258293A JP 5020162 A JP5020162 A JP 5020162A JP 2016293 A JP2016293 A JP 2016293A JP H05258293 A JPH05258293 A JP H05258293A
Authority
JP
Japan
Prior art keywords
glass substrate
substrate
magnetic recording
particles
recording medium
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.)
Pending
Application number
JP5020162A
Other languages
English (en)
Japanese (ja)
Inventor
Der Sluis-Van Der Voort El Van
ファン デル スルイス−ファン デル ブールト エリザベス
Der Putten Andreas Martinu T P Van
マルティヌス テオドールス ポールス ファン デル プッテン アドレアス
Joerg Brambring
ブランブリンク イェルク
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.)
Koninklijke Philips NV
Original Assignee
Philips Electronics NV
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 Philips Electronics NV filed Critical Philips Electronics NV
Publication of JPH05258293A publication Critical patent/JPH05258293A/ja
Pending 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73921—Glass or ceramic substrates
    • 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73913—Composites or coated substrates
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Magnetic Record Carriers (AREA)
  • Surface Treatment Of Glass (AREA)
JP5020162A 1992-02-11 1993-02-08 磁気記録媒体用ガラス基板 Pending JPH05258293A (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP92200380 1992-02-11
NL92203254:5 1992-10-22
EP92203254 1992-10-22
NL92200380:1 1992-10-22

Publications (1)

Publication Number Publication Date
JPH05258293A true JPH05258293A (ja) 1993-10-08

Family

ID=26131269

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5020162A Pending JPH05258293A (ja) 1992-02-11 1993-02-08 磁気記録媒体用ガラス基板

Country Status (4)

Country Link
EP (1) EP0555906A1 (show.php)
JP (1) JPH05258293A (show.php)
KR (1) KR930018477A (show.php)
TW (1) TW253965B (show.php)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100708280B1 (ko) * 2001-05-08 2007-04-17 후지쯔 가부시끼가이샤 자기 기록 매체의 제조 방법
JP2013020670A (ja) * 2011-07-08 2013-01-31 Kobe Steel Ltd 磁気記録媒体用アルミニウム基板の製造方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6142724A (ja) * 1984-08-03 1986-03-01 Tdk Corp 磁気記録媒体および磁気記録方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100708280B1 (ko) * 2001-05-08 2007-04-17 후지쯔 가부시끼가이샤 자기 기록 매체의 제조 방법
US7258893B2 (en) 2001-05-08 2007-08-21 Fujitsu Limited Method of fabricating a magnetic recording medium
JP2013020670A (ja) * 2011-07-08 2013-01-31 Kobe Steel Ltd 磁気記録媒体用アルミニウム基板の製造方法

Also Published As

Publication number Publication date
TW253965B (show.php) 1995-08-11
KR930018477A (ko) 1993-09-22
EP0555906A1 (en) 1993-08-18

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