JPS6045938A - 磁気記録媒体 - Google Patents

磁気記録媒体

Info

Publication number
JPS6045938A
JPS6045938A JP58152538A JP15253883A JPS6045938A JP S6045938 A JPS6045938 A JP S6045938A JP 58152538 A JP58152538 A JP 58152538A JP 15253883 A JP15253883 A JP 15253883A JP S6045938 A JPS6045938 A JP S6045938A
Authority
JP
Japan
Prior art keywords
magnetic
back layer
layer
radiation
magnetic layer
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
JP58152538A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0533447B2 (cs
Inventor
Masaharu Nishimatsu
西松　正治
Toshiaki Ide
井出　敏秋
Yoshiaki Saito
斉藤　善明
Hiroyuki Arioka
博之 有岡
Yuichi Kubota
悠一 久保田
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP58152538A priority Critical patent/JPS6045938A/ja
Publication of JPS6045938A publication Critical patent/JPS6045938A/ja
Publication of JPH0533447B2 publication Critical patent/JPH0533447B2/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
    • G11B5/73—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
    • G11B5/73923—Organic polymer 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
    • G11B5/735—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 characterised by the back layer
    • G11B5/7356—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 characterised by the back layer comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2
    • G11B5/7358—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 characterised by the back layer comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2 specially adapted for achieving a specific property, e.g. average roughness [Ra]

Landscapes

  • Magnetic Record Carriers (AREA)
  • Lubricants (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Paints Or Removers (AREA)
JP58152538A 1983-08-23 1983-08-23 磁気記録媒体 Granted JPS6045938A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58152538A JPS6045938A (ja) 1983-08-23 1983-08-23 磁気記録媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58152538A JPS6045938A (ja) 1983-08-23 1983-08-23 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS6045938A true JPS6045938A (ja) 1985-03-12
JPH0533447B2 JPH0533447B2 (cs) 1993-05-19

Family

ID=15542631

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58152538A Granted JPS6045938A (ja) 1983-08-23 1983-08-23 磁気記録媒体

Country Status (1)

Country Link
JP (1) JPS6045938A (cs)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60107729A (ja) * 1983-11-16 1985-06-13 Fuji Photo Film Co Ltd 磁気記録媒体
JPS61172215A (ja) * 1985-01-28 1986-08-02 Hitachi Maxell Ltd 磁気記録媒体
JPH027223A (ja) * 1988-06-27 1990-01-11 Hitachi Maxell Ltd 磁気記録媒体
WO1994027290A1 (fr) * 1993-05-14 1994-11-24 Tdk Corporation Support d'enregistrement magnetique
US6495706B2 (en) 2000-06-07 2002-12-17 Kao Corporation Process for producing hydroxycarboxylic acid ester

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51113603A (en) * 1975-03-28 1976-10-06 Hitachi Maxell Ltd Magnetic tape
JPS57154618A (en) * 1981-03-19 1982-09-24 Sony Corp Magnetic recording medium
JPS57169929A (en) * 1981-04-13 1982-10-19 Tdk Corp Magnetic recording medium and its manufacture
JPS57200937A (en) * 1981-06-05 1982-12-09 Tdk Corp Magnetic recording medium
JPS57208636A (en) * 1981-06-19 1982-12-21 Tdk Corp Magnetic recording medium
JPS57208635A (en) * 1981-06-19 1982-12-21 Tdk Corp Magnetic recording medium

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51113603A (en) * 1975-03-28 1976-10-06 Hitachi Maxell Ltd Magnetic tape
JPS57154618A (en) * 1981-03-19 1982-09-24 Sony Corp Magnetic recording medium
JPS57169929A (en) * 1981-04-13 1982-10-19 Tdk Corp Magnetic recording medium and its manufacture
JPS57200937A (en) * 1981-06-05 1982-12-09 Tdk Corp Magnetic recording medium
JPS57208636A (en) * 1981-06-19 1982-12-21 Tdk Corp Magnetic recording medium
JPS57208635A (en) * 1981-06-19 1982-12-21 Tdk Corp Magnetic recording medium

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60107729A (ja) * 1983-11-16 1985-06-13 Fuji Photo Film Co Ltd 磁気記録媒体
JPS61172215A (ja) * 1985-01-28 1986-08-02 Hitachi Maxell Ltd 磁気記録媒体
JPH027223A (ja) * 1988-06-27 1990-01-11 Hitachi Maxell Ltd 磁気記録媒体
WO1994027290A1 (fr) * 1993-05-14 1994-11-24 Tdk Corporation Support d'enregistrement magnetique
US5616398A (en) * 1993-05-14 1997-04-01 Tdk Corporation Magnetic recording medium
US6495706B2 (en) 2000-06-07 2002-12-17 Kao Corporation Process for producing hydroxycarboxylic acid ester

Also Published As

Publication number Publication date
JPH0533447B2 (cs) 1993-05-19

Similar Documents

Publication Publication Date Title
JPH0440780B2 (cs)
NL8403173A (nl) Magnetisch registratiemedium.
US4547419A (en) Magnetic recording medium
JPH0612564B2 (ja) 磁気記録媒体
US4591528A (en) Magnetic recording medium
US4618535A (en) Magnetic recording medium
JPS62256219A (ja) 磁気記録媒体
JPS6045938A (ja) 磁気記録媒体
JPS6045937A (ja) 磁気記録媒体
JPS5924436A (ja) 磁気記録媒体の製造方法
JPS6059527A (ja) 磁気記録媒体
JPS6079523A (ja) 樹脂組成物およびそれを用いた磁気記録媒体
JPS6059526A (ja) 磁気記録媒体
JPH0546016B2 (cs)
JPS6083217A (ja) 磁気記録媒体
JPS60125925A (ja) 磁気記録媒体
JPS6050619A (ja) 磁気デイスク及びその製造方法
JPS60125923A (ja) 磁気記録媒体
JPH0413766B2 (cs)
JPS60163228A (ja) 磁気記録媒体
JPS59213029A (ja) 磁気記録媒体
JPH0644341B2 (ja) 磁気記録媒体
JPS62256221A (ja) 磁気記録媒体
JPS6045939A (ja) 磁気記録媒体
JPS62125537A (ja) 磁気記録媒体の製造方法