JPH0337724B2 - - Google Patents

Info

Publication number
JPH0337724B2
JPH0337724B2 JP58072075A JP7207583A JPH0337724B2 JP H0337724 B2 JPH0337724 B2 JP H0337724B2 JP 58072075 A JP58072075 A JP 58072075A JP 7207583 A JP7207583 A JP 7207583A JP H0337724 B2 JPH0337724 B2 JP H0337724B2
Authority
JP
Japan
Prior art keywords
film
composition
relationship
coercive force
perpendicularly magnetized
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
JP58072075A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59198707A (ja
Inventor
Kyuzo Nakamura
Yoshifumi Oota
Hiroki Yamada
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.)
Ulvac Inc
Original Assignee
Ulvac Inc
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 Ulvac Inc filed Critical Ulvac Inc
Priority to JP58072075A priority Critical patent/JPS59198707A/ja
Priority to DE8484301530T priority patent/DE3465647D1/de
Priority to EP84301530A priority patent/EP0122030B1/en
Publication of JPS59198707A publication Critical patent/JPS59198707A/ja
Priority to US07/412,535 priority patent/US5024854A/en
Publication of JPH0337724B2 publication Critical patent/JPH0337724B2/ja
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

Landscapes

  • Physical Vapour Deposition (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)
JP58072075A 1983-03-08 1983-04-26 垂直磁気記録体 Granted JPS59198707A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP58072075A JPS59198707A (ja) 1983-04-26 1983-04-26 垂直磁気記録体
DE8484301530T DE3465647D1 (en) 1983-03-08 1984-03-08 A magnetic recording member and a manufacturing method for such a member
EP84301530A EP0122030B1 (en) 1983-03-08 1984-03-08 A magnetic recording member and a manufacturing method for such a member
US07/412,535 US5024854A (en) 1983-03-08 1989-09-22 Method of manufacturing perpendicular type magnetic recording member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58072075A JPS59198707A (ja) 1983-04-26 1983-04-26 垂直磁気記録体

Publications (2)

Publication Number Publication Date
JPS59198707A JPS59198707A (ja) 1984-11-10
JPH0337724B2 true JPH0337724B2 (enrdf_load_stackoverflow) 1991-06-06

Family

ID=13478921

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58072075A Granted JPS59198707A (ja) 1983-03-08 1983-04-26 垂直磁気記録体

Country Status (1)

Country Link
JP (1) JPS59198707A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60170213A (ja) * 1984-02-15 1985-09-03 Yoshifumi Sakurai 磁性薄膜およびその製法
CA1315612C (en) * 1986-03-18 1993-04-06 Shogo Nasu Perpendicular magnetic storage medium
JPH0191314A (ja) * 1987-10-01 1989-04-11 Kanegafuchi Chem Ind Co Ltd 垂直磁気記録媒体

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6033289B2 (ja) * 1979-07-18 1985-08-02 松下電器産業株式会社 金属薄膜型磁気記録媒体
JPS57113417A (en) * 1980-12-29 1982-07-14 Sony Corp Magnetic recording medium
JPS59140629A (ja) * 1983-01-31 1984-08-13 Hitachi Ltd 垂直磁気記録媒体の製造方法
JPS59163810A (ja) * 1983-03-08 1984-09-14 Ulvac Corp 垂直磁気記録体並びにその製造法

Also Published As

Publication number Publication date
JPS59198707A (ja) 1984-11-10

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