DE69936668D1 - Magnetisches aufzeichnungsmedium, herstellungsverfahren und magnetischer diskettenapparat - Google Patents

Magnetisches aufzeichnungsmedium, herstellungsverfahren und magnetischer diskettenapparat

Info

Publication number
DE69936668D1
DE69936668D1 DE69936668T DE69936668T DE69936668D1 DE 69936668 D1 DE69936668 D1 DE 69936668D1 DE 69936668 T DE69936668 T DE 69936668T DE 69936668 T DE69936668 T DE 69936668T DE 69936668 D1 DE69936668 D1 DE 69936668D1
Authority
DE
Germany
Prior art keywords
magnetic
disketting
manufacturing
recording medium
magnetic 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
DE69936668T
Other languages
English (en)
Other versions
DE69936668T2 (de
Inventor
Hiroto Takeshita
Wataru Yamagishi
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.)
Resonac Holdings Corp
Original Assignee
Fujitsu 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
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of DE69936668D1 publication Critical patent/DE69936668D1/de
Application granted granted Critical
Publication of DE69936668T2 publication Critical patent/DE69936668T2/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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
    • 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
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • 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
    • G11B5/8408—Processes or apparatus specially adapted for manufacturing record carriers protecting the magnetic 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/85—Coating a support with a magnetic layer by vapour deposition
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2508—Magnetic discs
    • 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.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • 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.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24521—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface
    • 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.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24521—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface
    • Y10T428/24537—Parallel ribs and/or grooves
    • 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.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/2457—Parallel ribs and/or grooves
DE69936668T 1999-05-28 1999-05-28 Magnetisches aufzeichnungsmedium, herstellungsverfahren und magnetischer diskettenapparat Expired - Fee Related DE69936668T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1999/002881 WO2000074041A1 (fr) 1999-05-28 1999-05-28 Support d'enregistrement magnetique, son procede de fabrication et appareil a disque magnetique

Publications (2)

Publication Number Publication Date
DE69936668D1 true DE69936668D1 (de) 2007-09-06
DE69936668T2 DE69936668T2 (de) 2007-11-22

Family

ID=14235850

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69936668T Expired - Fee Related DE69936668T2 (de) 1999-05-28 1999-05-28 Magnetisches aufzeichnungsmedium, herstellungsverfahren und magnetischer diskettenapparat

Country Status (7)

Country Link
US (1) US6773782B2 (de)
EP (1) EP1204097B1 (de)
JP (1) JP4258150B2 (de)
KR (1) KR100630585B1 (de)
CN (1) CN1176457C (de)
DE (1) DE69936668T2 (de)
WO (1) WO2000074041A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005100496A (ja) * 2003-09-22 2005-04-14 Tdk Corp 磁気記録媒体の製造方法及び磁気記録媒体
JP3686067B2 (ja) * 2003-10-28 2005-08-24 Ｔｄｋ株式会社 磁気記録媒体の製造方法
JP2005235356A (ja) * 2004-02-23 2005-09-02 Tdk Corp 磁気記録媒体の製造方法
JP4231007B2 (ja) * 2005-02-07 2009-02-25 富士通株式会社 磁気媒体の製造方法および磁気媒体製造用金型
US20070147348A1 (en) * 2005-12-23 2007-06-28 Tingting Lu Methods, systems, and computer program products for providing location information for VoIP emergency calling
US7719793B2 (en) * 2005-12-28 2010-05-18 Hitachi Global Storage Technologies Netherlands B.V. Circumferentially patterned disk for longitudinal and perpendicular recording
JP2008299964A (ja) * 2007-05-31 2008-12-11 Hitachi Ltd 磁気ディスク及びその製造方法
JP5518449B2 (ja) * 2009-12-02 2014-06-11 エイチジーエスティーネザーランドビーブイ 磁気記録媒体及びその製造方法
JP5652075B2 (ja) * 2010-09-13 2015-01-14 ソニー株式会社 記憶素子及びメモリ

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59157842A (ja) * 1983-02-25 1984-09-07 Anelva Corp 磁気記録媒体
JPS6124021A (ja) 1984-07-13 1986-02-01 Matsushita Electric Ind Co Ltd トラツク分離型磁気デイスク
JPH0831207B2 (ja) * 1985-06-05 1996-03-27 株式会社日立製作所 磁気記録装置
US4758474A (en) * 1985-11-20 1988-07-19 Nec Corporation Magnetic recording member
JPS63273230A (ja) * 1987-05-01 1988-11-10 Dainippon Ink & Chem Inc 光記録媒体
US4935278A (en) * 1988-04-28 1990-06-19 International Business Machines Corporation Thin film magnetic recording disk and fabrication process
JPH01292625A (ja) 1988-05-19 1989-11-24 Hitachi Ltd 磁気記録媒体
JP2657535B2 (ja) 1988-10-31 1997-09-24 横浜ゴム株式会社 引張試験機に於ける試験片供給装置
JPH02278514A (ja) * 1989-04-18 1990-11-14 Sekisui Chem Co Ltd 滋気記録媒体
JPH03127327A (ja) * 1989-10-13 1991-05-30 Hitachi Ltd 磁気デイスクとその製造法及び磁気デイスク装置
JPH0485723A (ja) * 1990-07-27 1992-03-18 Fuji Photo Film Co Ltd 磁気記録媒体
JP2706173B2 (ja) * 1990-09-21 1998-01-28 シャープ株式会社 磁気メモリ素子の製造方法
JPH04251435A (ja) * 1990-12-28 1992-09-07 Tdk Corp 磁気ディスク
JPH05109047A (ja) * 1991-03-12 1993-04-30 Hitachi Ltd 磁気記録媒体及びその製造方法
JP3057586B2 (ja) 1991-09-20 2000-06-26 富士通株式会社 垂直磁気記録媒体及び装置
JPH06314446A (ja) * 1992-06-19 1994-11-08 Tdk Corp 光磁気ディスク
JPH07190745A (ja) 1993-12-27 1995-07-28 Matsushita Electric Ind Co Ltd 実装部品の検査装置
JP3241560B2 (ja) * 1995-02-24 2001-12-25 ソニー株式会社 光学記録媒体及びその製造方法
JPH0944843A (ja) * 1995-07-26 1997-02-14 Sony Corp 磁気記録カード及びその製造方法
JPH09134515A (ja) * 1995-09-05 1997-05-20 Kao Corp 磁気記録媒体
KR100230448B1 (ko) * 1996-10-10 1999-11-15 윤종용 광기록매체
US5999360A (en) * 1996-10-15 1999-12-07 Seagate Technology, Inc. Disc drive servo system employing thermal signals
JP3541289B2 (ja) * 1997-09-03 2004-07-07 富士通株式会社 磁気記録媒体及び補助情報の記録方法
JP3719026B2 (ja) * 1998-12-28 2005-11-24 富士通株式会社 磁気記録媒体とその製造方法

Also Published As

Publication number Publication date
CN1352792A (zh) 2002-06-05
JP4258150B2 (ja) 2009-04-30
EP1204097B1 (de) 2007-07-25
US6773782B2 (en) 2004-08-10
WO2000074041A1 (fr) 2000-12-07
EP1204097A1 (de) 2002-05-08
DE69936668T2 (de) 2007-11-22
KR20020013564A (ko) 2002-02-20
EP1204097A4 (de) 2003-07-16
US20020055018A1 (en) 2002-05-09
KR100630585B1 (ko) 2006-10-04
CN1176457C (zh) 2004-11-17

Similar Documents

Publication Publication Date Title
DE60040263D1 (de) Aufzeichnungsgerät, Aufzeichnungsverfahren und plattenförmiges Aufzeichnungsmedium
DE60033543D1 (de) Aufnahmegerät, Aufnahmeverfahren, Wiedergabegerät, Wiedergabeverfahren und Aufnahmemedium
DE60137155D1 (de) Aufzeichnungsmedium, Aufzeichnungsverfahren, Wiedergabeverfahren, Aufzeichnungsgerät und Wiedergabegerät
DE69900901D1 (de) Informationsaufzeichnungsmedium, Informationsaufzeichnungsverfahren und Informationsaufzeichnungsgerät
DE60006186D1 (de) Magnetaufzeichnungsmedium, Magnetspeichergerät, -aufzeichnungsmethode und Magnetaufzeichnungsmedium-Herstellungsverfahren
DE60106164D1 (de) Informationsschnittgerät, Informationsschnittverfahren und Informationsaufzeichnungsmedium
DE60237878D1 (de) Aufzeichnungsgerät, aufzeichnungsverfahren und aufzeichnungsmedium
DE60042185D1 (de) Informationsverarbeitungsvorrichtung, Informationsverarbeitungsverfahren, und Programmaufzeichsnungsmedium
DE60027396D1 (de) Optisches Aufzeichnungsmedium und Herstellungsverfahren
HK1069475A1 (en) Recording medium reproduction method and reproduction apparatus, and recording medium recording method and recording apparatus
DE60031111D1 (de) Optisches aufzeichnungsverfahren und optisches aufzeichnungsmedium
DE60039147D1 (de) Aufzeichnungsmedium, Wiedergabegerät und -verfahren
DE60004142D1 (de) Magnetisches aufzeichnungsmedium und magnetisches pulver, und herstellungsverfahren
HK1083149A1 (en) Recording medium and apparatus and method for manufacturing the same
DE602004014447D1 (de) Magnetisches Aufzeichnungsmedium, magnetisches Aufzeichnungsgerät und Aufzeichnungsverfahren
DE69926283D1 (de) Wiedergabegerät, Aufzeichnungsgerät und Aufzeichnungs-/Wiedergabevorrichtung
EP1416489A4 (de) Aufzeichnungsgerät, aufzeichnungsverfahren und aufzeichnungsmedium
SG115476A1 (en) Magnetic recording medium, method of manufacturing therefor and magnetic replay apparatus
DE69932108D1 (de) Aufzeichnungsgerät, Aufzeichnungsverfahren und Speichermedium
DE60105490D1 (de) Informationsaufzeichnungsmedium, Informationsaufzeichnungsverfahren, Informationsaufzeichnungsgerät, Informationswiedergabeverfahren und Informationswiedergabegerät
EP1408504A4 (de) Aufzeichnungsgeraet fuer aufzeichnungsmedium, aufzeichnungsverfahren, wiedergabegeraet fuer aufzeichnungsmedium und wiedergabeverfahren
SG105013A1 (en) Perpendicular magnetic recording medium, manufacturing method thereof, and magnetic recording-reproducing apparatus
EP1391892A4 (de) Aufzeichnungsverfahren, aufzeichnungsgeraet und aufzeichnungstraeger
DE69936668D1 (de) Magnetisches aufzeichnungsmedium, herstellungsverfahren und magnetischer diskettenapparat
EP1457983A4 (de) "aufzeichnungsmedium, aufzeichnungsverfahren, aufzeichnungsvorrichtung und wiedergabeverfahren"

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SHOWA DENKO K.K., MINATO-KU, TOKYO, JP

8328 Change in the person/name/address of the agent

Representative=s name: SEEGER SEEGER LINDNER PARTNERSCHAFT PATENTANWAELTE

8339 Ceased/non-payment of the annual fee