JPS58100221A - 磁気記録媒体 - Google Patents

磁気記録媒体

Info

Publication number
JPS58100221A
JPS58100221A JP56199282A JP19928281A JPS58100221A JP S58100221 A JPS58100221 A JP S58100221A JP 56199282 A JP56199282 A JP 56199282A JP 19928281 A JP19928281 A JP 19928281A JP S58100221 A JPS58100221 A JP S58100221A
Authority
JP
Japan
Prior art keywords
recording medium
magnetic recording
protrusions
film
magnetic
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
JP56199282A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0547888B2 (enrdf_load_stackoverflow
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 JP56199282A priority Critical patent/JPS58100221A/ja
Priority to US06/434,600 priority patent/US4578729A/en
Priority to DE8282109567T priority patent/DE3277996D1/de
Priority to DE198282109567T priority patent/DE77549T1/de
Priority to EP82109567A priority patent/EP0077549B2/en
Publication of JPS58100221A publication Critical patent/JPS58100221A/ja
Publication of JPH0547888B2 publication Critical patent/JPH0547888B2/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
    • G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)
  • Magnetic Record Carriers (AREA)
JP56199282A 1981-10-15 1981-12-09 磁気記録媒体 Granted JPS58100221A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP56199282A JPS58100221A (ja) 1981-12-09 1981-12-09 磁気記録媒体
US06/434,600 US4578729A (en) 1981-10-15 1982-10-15 Magnetic recording medium
DE8282109567T DE3277996D1 (en) 1981-10-15 1982-10-15 Magnetic recording medium
DE198282109567T DE77549T1 (de) 1981-10-15 1982-10-15 Magnetisches aufzeichnungsmedium.
EP82109567A EP0077549B2 (en) 1981-10-15 1982-10-15 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56199282A JPS58100221A (ja) 1981-12-09 1981-12-09 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS58100221A true JPS58100221A (ja) 1983-06-14
JPH0547888B2 JPH0547888B2 (enrdf_load_stackoverflow) 1993-07-20

Family

ID=16405196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56199282A Granted JPS58100221A (ja) 1981-10-15 1981-12-09 磁気記録媒体

Country Status (1)

Country Link
JP (1) JPS58100221A (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6069816A (ja) * 1983-09-22 1985-04-20 Matsushita Electric Ind Co Ltd 磁気記録媒体
JPS6080134A (ja) * 1983-10-11 1985-05-08 Matsushita Electric Ind Co Ltd 磁気記録媒体
JPS6142722A (ja) * 1984-08-02 1986-03-01 Tdk Corp 磁気記録方法
JPS6280825A (ja) * 1985-10-04 1987-04-14 Sony Corp 磁気記録媒体
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
US5114778A (en) * 1987-10-23 1992-05-19 Fuji Photo Film Co., Ltd. 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

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53107315A (en) * 1977-03-01 1978-09-19 Matsushita Electric Ind Co Ltd Magnetic recording method
JPS53107314A (en) * 1977-03-01 1978-09-19 Matsushita Electric Ind Co Ltd Magnetic recording medium
JPS53109607A (en) * 1977-03-04 1978-09-25 Matsushita Electric Ind Co Ltd Production of magnetic recording medium
JPS54143112A (en) * 1978-04-27 1979-11-08 Matsushita Electric Ind Co Ltd 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
JPS5613516A (en) * 1979-07-16 1981-02-09 Tdk Corp Magnetic recording medium
JPS5616937A (en) * 1979-07-17 1981-02-18 Matsushita Electric Ind Co Ltd Magnetic recording medium

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53107315A (en) * 1977-03-01 1978-09-19 Matsushita Electric Ind Co Ltd Magnetic recording method
JPS53107314A (en) * 1977-03-01 1978-09-19 Matsushita Electric Ind Co Ltd Magnetic recording medium
JPS53109607A (en) * 1977-03-04 1978-09-25 Matsushita Electric Ind Co Ltd Production of magnetic recording medium
JPS54143112A (en) * 1978-04-27 1979-11-08 Matsushita Electric Ind Co Ltd 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
JPS5613516A (en) * 1979-07-16 1981-02-09 Tdk Corp Magnetic recording medium
JPS5616937A (en) * 1979-07-17 1981-02-18 Matsushita Electric Ind Co Ltd Magnetic recording medium

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6069816A (ja) * 1983-09-22 1985-04-20 Matsushita Electric Ind Co Ltd 磁気記録媒体
JPS6080134A (ja) * 1983-10-11 1985-05-08 Matsushita Electric Ind Co Ltd 磁気記録媒体
JPS6142722A (ja) * 1984-08-02 1986-03-01 Tdk Corp 磁気記録方法
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
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
JPS6280825A (ja) * 1985-10-04 1987-04-14 Sony Corp 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
US5114778A (en) * 1987-10-23 1992-05-19 Fuji Photo Film Co., Ltd. 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

Also Published As

Publication number Publication date
JPH0547888B2 (enrdf_load_stackoverflow) 1993-07-20

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