DE3672639D1 - Aufzeichnungstraeger mit senkrechter magnetisierung. - Google Patents

Aufzeichnungstraeger mit senkrechter magnetisierung.

Info

Publication number
DE3672639D1
DE3672639D1 DE8686104108T DE3672639T DE3672639D1 DE 3672639 D1 DE3672639 D1 DE 3672639D1 DE 8686104108 T DE8686104108 T DE 8686104108T DE 3672639 T DE3672639 T DE 3672639T DE 3672639 D1 DE3672639 D1 DE 3672639D1
Authority
DE
Germany
Prior art keywords
recording carrier
upper magnetization
magnetization
recording
carrier
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 - Lifetime
Application number
DE8686104108T
Other languages
English (en)
Inventor
Ryuji Sugita
Kiyokazu Tohma
Kazuyoshi Honda
Taro Nanbu
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 JP6113685A external-priority patent/JPH0624054B2/ja
Priority claimed from JP11242185A external-priority patent/JPS61269221A/ja
Priority claimed from JP15643285A external-priority patent/JPS6216230A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE3672639D1 publication Critical patent/DE3672639D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
    • G11B5/656—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing Co
    • 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
DE8686104108T 1985-03-26 1986-03-25 Aufzeichnungstraeger mit senkrechter magnetisierung. Expired - Lifetime DE3672639D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP6113685A JPH0624054B2 (ja) 1985-03-26 1985-03-26 垂直磁気記録媒体及び磁気記録再生方法
JP11242185A JPS61269221A (ja) 1985-05-24 1985-05-24 垂直磁気記録媒体及び磁気記録再生方法
JP15643285A JPS6216230A (ja) 1985-07-16 1985-07-16 垂直磁気記録媒体及び磁気記録再生方法

Publications (1)

Publication Number Publication Date
DE3672639D1 true DE3672639D1 (de) 1990-08-23

Family

ID=27297399

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686104108T Expired - Lifetime DE3672639D1 (de) 1985-03-26 1986-03-25 Aufzeichnungstraeger mit senkrechter magnetisierung.

Country Status (3)

Country Link
US (1) US4859501A (de)
EP (1) EP0196071B1 (de)
DE (1) DE3672639D1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6320725B1 (en) * 1989-11-27 2001-11-20 Censtor Corporation Hard disk drive having ring head with predominantly perpendicular media fields

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5891B2 (ja) * 1977-09-30 1983-01-05 俊一 岩崎 磁気記録媒体
JPS57134907A (en) * 1981-02-13 1982-08-20 Fuji Photo Film Co Ltd Magnetic recording medium
JPS5834903A (ja) * 1981-08-27 1983-03-01 Tdk Corp 磁気記録媒体
JPS5948904A (ja) * 1982-09-14 1984-03-21 Victor Co Of Japan Ltd 記録媒体
EP0116881A3 (de) * 1983-02-03 1986-10-22 Konica Corporation Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung
JPS6063710A (ja) * 1983-09-19 1985-04-12 Hitachi Ltd 磁気ディスク媒体
JPS60143431A (ja) * 1983-12-29 1985-07-29 Alps Electric Co Ltd 垂直磁気記録媒体

Also Published As

Publication number Publication date
EP0196071A1 (de) 1986-10-01
US4859501A (en) 1989-08-22
EP0196071B1 (de) 1990-07-18

Similar Documents

Publication Publication Date Title
DE3685448D1 (de) Geraet mit kombiniertem magnetkopf.
DE3784948D1 (de) Magnetischer aufzeichnungstraeger.
DE3781712T2 (de) Magnetischer aufzeichnungstraeger.
DE3866314D1 (de) Magnetooptischer aufzeichnungstraeger.
DE3584814D1 (de) Positionierungsvorrichtung der bauart mit magnetischer aufhaengung.
DE3669604D1 (de) Magnetischer aufzeichnungstraeger.
DE3784085T2 (de) Magnetischer aufzeichnungstraeger.
DE3677942D1 (de) Magnetischer aufzeichnungstraeger mit vertikaler aufzeichnung.
DE3675726D1 (de) Aufzeichnungstraeger.
DE3788972T2 (de) Magnetischer Aufzeichnungsträger.
DE3880048D1 (de) Aufzeichnungstraeger mit senkrechter magnetisierung.
DE3577490D1 (de) Magnetischer aufzeichnungstraeger.
DE3575627D1 (de) Magnetischer aufzeichnungstraeger.
DE3683824D1 (de) Magnetischer aufzeichnungstraeger.
DE3776688D1 (de) Magnetischer aufzeichnungstraeger.
DE3681146D1 (de) Optisch-magnetischer aufzeichnungstraeger.
DE3789130T3 (de) Magnetischer Aufzeichnungsträger.
DE3684049D1 (de) Magnetbandsystem mit schreibwiederholung.
DE3676639D1 (de) Magnetischer aufzeichnungstraeger.
DE3575034D1 (de) Magnetischer aufzeichnungstraeger.
DE3778424D1 (de) Magnetischer aufzeichnungstraeger.
DE3788295D1 (de) Magnetischer Aufzeichnungsträger.
DE3688971T2 (de) Magnetisches Aufnahmegerät.
DE3585489D1 (de) Magnetischer aufzeichnungstraeger.
DE3761931D1 (de) Magnetische aufzeichnungstraeger.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee