JPS5868227A - 磁気記録媒体 - Google Patents

磁気記録媒体

Info

Publication number
JPS5868227A
JPS5868227A JP56165191A JP16519181A JPS5868227A JP S5868227 A JPS5868227 A JP S5868227A JP 56165191 A JP56165191 A JP 56165191A JP 16519181 A JP16519181 A JP 16519181A JP S5868227 A JPS5868227 A JP S5868227A
Authority
JP
Japan
Prior art keywords
film
protrusions
magnetic recording
recording medium
fine particles
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
JP56165191A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0547887B2 (enExample
Inventor
Takashi Suzuki
貴志 鈴木
Hiroshi Fujimori
藤盛　洋
Masaru Odagiri
優 小田桐
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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56165191A priority Critical patent/JPS5868227A/ja
Priority to DE8282109567T priority patent/DE3277996D1/de
Priority to DE198282109567T priority patent/DE77549T1/de
Priority to US06/434,600 priority patent/US4578729A/en
Priority to EP82109567A priority patent/EP0077549B2/en
Publication of JPS5868227A publication Critical patent/JPS5868227A/ja
Publication of JPH0547887B2 publication Critical patent/JPH0547887B2/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

Landscapes

  • Magnetic Record Carriers (AREA)
JP56165191A 1981-10-15 1981-10-15 磁気記録媒体 Granted JPS5868227A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP56165191A JPS5868227A (ja) 1981-10-15 1981-10-15 磁気記録媒体
DE8282109567T DE3277996D1 (en) 1981-10-15 1982-10-15 Magnetic recording medium
DE198282109567T DE77549T1 (de) 1981-10-15 1982-10-15 Magnetisches aufzeichnungsmedium.
US06/434,600 US4578729A (en) 1981-10-15 1982-10-15 Magnetic recording medium
EP82109567A EP0077549B2 (en) 1981-10-15 1982-10-15 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56165191A JPS5868227A (ja) 1981-10-15 1981-10-15 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS5868227A true JPS5868227A (ja) 1983-04-23
JPH0547887B2 JPH0547887B2 (enExample) 1993-07-20

Family

ID=15807563

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56165191A Granted JPS5868227A (ja) 1981-10-15 1981-10-15 磁気記録媒体

Country Status (1)

Country Link
JP (1) JPS5868227A (enExample)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6061920A (ja) * 1983-09-16 1985-04-09 Toshiba Corp 磁気記録媒体
JPS60111319A (ja) * 1983-11-18 1985-06-17 Matsushita Electric Ind Co Ltd 磁気記録媒体
JPS60117414A (ja) * 1983-11-29 1985-06-24 Matsushita Electric Ind Co Ltd 薄膜型磁気記録媒体
JPS60261015A (ja) * 1984-06-06 1985-12-24 Matsushita Electric Ind Co Ltd 磁気記録媒体
JPS6126924A (ja) * 1984-07-17 1986-02-06 Matsushita Electric Ind Co Ltd 磁気記録媒体
JPS6161224A (ja) * 1984-09-03 1986-03-29 Tdk Corp 磁気記録方法
JPS6163922A (ja) * 1984-09-04 1986-04-02 Tdk Corp 磁気記録方法
JPS61202323A (ja) * 1985-03-04 1986-09-08 Tdk Corp 磁気記録媒体
JPS61284826A (ja) * 1985-06-10 1986-12-15 Matsushita Electric Ind Co Ltd 磁気記録媒体
US4734810A (en) * 1984-08-02 1988-03-29 Tdk Corporation Magnetic recording medium comprising protrusion on its surface and a plasma treated substrate and recording/reproducing method therefor
US4770924A (en) * 1986-07-02 1988-09-13 Tdk Corporation Magnetic recording medium
US4780354A (en) * 1986-02-05 1988-10-25 Tdk Corporation Magnetic recording medium
US4828899A (en) * 1984-08-02 1989-05-09 Tdk Corporation Magnetic recording medium and recording/reproducing method thereof
US4837116A (en) * 1984-08-03 1989-06-06 Tdk Corporation Magnetic recording medium and recording/reproducing method therefor
US5496618A (en) * 1991-06-28 1996-03-05 Teijin Limited Polyester film for magnetic recording media, process for preparation thereof and magnetic recording medium
US5604029A (en) * 1992-12-25 1997-02-18 Matsushita Electric Industrial Co., Ltd. Magnetic recording media and manufacturing method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5613516A (en) * 1979-07-16 1981-02-09 Tdk Corp Magnetic recording medium
JPS5613518A (en) * 1979-07-16 1981-02-09 Tdk Corp Magnetic recording medium
JPS5613517A (en) * 1979-07-16 1981-02-09 Tdk Corp Magnetic recording medium

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5613516A (en) * 1979-07-16 1981-02-09 Tdk Corp Magnetic recording medium
JPS5613518A (en) * 1979-07-16 1981-02-09 Tdk Corp Magnetic recording medium
JPS5613517A (en) * 1979-07-16 1981-02-09 Tdk Corp Magnetic recording medium

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6061920A (ja) * 1983-09-16 1985-04-09 Toshiba Corp 磁気記録媒体
JPS60111319A (ja) * 1983-11-18 1985-06-17 Matsushita Electric Ind Co Ltd 磁気記録媒体
JPS60117414A (ja) * 1983-11-29 1985-06-24 Matsushita Electric Ind Co Ltd 薄膜型磁気記録媒体
JPS60261015A (ja) * 1984-06-06 1985-12-24 Matsushita Electric Ind Co Ltd 磁気記録媒体
JPS6126924A (ja) * 1984-07-17 1986-02-06 Matsushita Electric Ind Co Ltd 磁気記録媒体
US4828899A (en) * 1984-08-02 1989-05-09 Tdk Corporation Magnetic recording medium and recording/reproducing method thereof
US4734810A (en) * 1984-08-02 1988-03-29 Tdk Corporation Magnetic recording medium comprising protrusion on its surface and a plasma treated substrate and recording/reproducing method therefor
US4837116A (en) * 1984-08-03 1989-06-06 Tdk Corporation Magnetic recording medium and recording/reproducing method therefor
JPS6161224A (ja) * 1984-09-03 1986-03-29 Tdk Corp 磁気記録方法
JPS6163922A (ja) * 1984-09-04 1986-04-02 Tdk Corp 磁気記録方法
JPS61202323A (ja) * 1985-03-04 1986-09-08 Tdk Corp 磁気記録媒体
JPS61284826A (ja) * 1985-06-10 1986-12-15 Matsushita Electric Ind Co Ltd 磁気記録媒体
US4780354A (en) * 1986-02-05 1988-10-25 Tdk Corporation Magnetic recording medium
US4770924A (en) * 1986-07-02 1988-09-13 Tdk Corporation Magnetic recording medium
US5496618A (en) * 1991-06-28 1996-03-05 Teijin Limited Polyester film for magnetic recording media, process for preparation thereof and magnetic recording medium
US5601768A (en) * 1991-06-28 1997-02-11 Teijin Limited Process for preparation of a polyester film for magnetic recording media
US5604029A (en) * 1992-12-25 1997-02-18 Matsushita Electric Industrial Co., Ltd. Magnetic recording media and manufacturing method thereof

Also Published As

Publication number Publication date
JPH0547887B2 (enExample) 1993-07-20

Similar Documents

Publication Publication Date Title
JPS5868227A (ja) 磁気記録媒体
US4645703A (en) Magnetic recording medium
NL8304424A (nl) Magnetisch registratiemedium.
JPS5868225A (ja) 磁気記録媒体
JPH0328732B2 (enExample)
JPS5930231A (ja) 磁気記録媒体
JPH0690786B2 (ja) 磁気記録媒体
JP2608868B2 (ja) 磁気記録媒体
JP2000011342A (ja) クリーニングテープおよびその製造方法
JPS5994227A (ja) 磁気記録媒体
JP2554277B2 (ja) 磁気記録媒体
JPS5837615B2 (ja) 磁気記録媒体
JPH0475577B2 (enExample)
JP2959110B2 (ja) 磁気テープの製造方法
JP2626051B2 (ja) 磁気記録媒体
JPS5942638A (ja) 金属薄膜型磁気記録媒体の製造方法
JPS61214119A (ja) 磁気記録媒体
JPS618720A (ja) 磁気記録媒体
JPS5942639A (ja) 金属薄膜型磁気記録媒体
JPS6085417A (ja) 薄膜型磁気記録媒体
JPH01263920A (ja) 磁気記録媒体
JPS6069816A (ja) 磁気記録媒体
JPH01205714A (ja) 磁気記録媒体
JPS61214126A (ja) 磁気記録媒体
JPS60111319A (ja) 磁気記録媒体