JPS5972642A - 磁気記録媒体 - Google Patents

磁気記録媒体

Info

Publication number
JPS5972642A
JPS5972642A JP57183217A JP18321782A JPS5972642A JP S5972642 A JPS5972642 A JP S5972642A JP 57183217 A JP57183217 A JP 57183217A JP 18321782 A JP18321782 A JP 18321782A JP S5972642 A JPS5972642 A JP S5972642A
Authority
JP
Japan
Prior art keywords
magnetic
layer
track
pattern
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.)
Granted
Application number
JP57183217A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6325405B2 (enrdf_load_stackoverflow
Inventor
Yoshikazu Ichiyama
義和 市山
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP57183217A priority Critical patent/JPS5972642A/ja
Publication of JPS5972642A publication Critical patent/JPS5972642A/ja
Publication of JPS6325405B2 publication Critical patent/JPS6325405B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/64Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers

Landscapes

  • Magnetic Record Carriers (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
JP57183217A 1982-10-19 1982-10-19 磁気記録媒体 Granted JPS5972642A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57183217A JPS5972642A (ja) 1982-10-19 1982-10-19 磁気記録媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57183217A JPS5972642A (ja) 1982-10-19 1982-10-19 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS5972642A true JPS5972642A (ja) 1984-04-24
JPS6325405B2 JPS6325405B2 (enrdf_load_stackoverflow) 1988-05-25

Family

ID=16131828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57183217A Granted JPS5972642A (ja) 1982-10-19 1982-10-19 磁気記録媒体

Country Status (1)

Country Link
JP (1) JPS5972642A (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56148735A (en) * 1980-04-21 1981-11-18 Matsushita Electric Ind Co Ltd Magnetic disc

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56148735A (en) * 1980-04-21 1981-11-18 Matsushita Electric Ind Co Ltd Magnetic disc

Also Published As

Publication number Publication date
JPS6325405B2 (enrdf_load_stackoverflow) 1988-05-25

Similar Documents

Publication Publication Date Title
US6934128B2 (en) Magnetic head and magnetic disk drive
US5815342A (en) Perpendicular magnetic recording/reproducing apparatus
JPH041922A (ja) 面内磁気記録媒体及び磁気記憶装置
US7061703B2 (en) Master information carrier and method for manufacturing magnetic disc using the same
JPH0997419A (ja) 磁気ディスク、磁気ディスクの製造方法、及び磁気記録装置
JPH08249602A (ja) 磁気式記憶再生方法ならびにそれに用いる磁気再生装置、磁気記憶媒体およびその製法
JP2004110896A (ja) 垂直磁気記録再生システム
US20090073593A1 (en) Master carrier for magnetic transfer, magnetic transfer method and magnetic recording medium
JPWO2003017276A1 (ja) 位置検出方法、情報記録再生装置及び情報記録媒体
US6770388B2 (en) Perpendicular magnetic recording medium
JP3705076B2 (ja) マスター情報担体を用いた垂直磁気記録媒体への磁気記録方法
JPH02301018A (ja) 磁気記録媒体
US6426844B1 (en) Method and apparatus for phase modulated servo positioning in a direct access storage device
JP2856134B2 (ja) 磁気記録再生装置
US8665549B2 (en) Method for creating burst magnitude servo patterns with unipolar bits on a magnetic media of a magnetic data recording system
JPS5972642A (ja) 磁気記録媒体
US7333289B2 (en) Magnetic recording and reproducing apparatus, method of controlling the same, magnetic recording medium, and stamper for manufacturing magnetic recording medium
JPS6325406B2 (enrdf_load_stackoverflow)
JPH07201002A (ja) 磁気記録再生装置
JP2000322849A (ja) トラッキング用サーボ信号記録方法
US6999259B2 (en) Master disc and method of manufacturing the same
JPH01158617A (ja) 垂直磁気記録媒体
JPS6224851B2 (enrdf_load_stackoverflow)
JPH07302418A (ja) 磁気ディスク
JPH02168401A (ja) 磁気デイスク装置