JPS53116115A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS53116115A
JPS53116115A JP3092177A JP3092177A JPS53116115A JP S53116115 A JPS53116115 A JP S53116115A JP 3092177 A JP3092177 A JP 3092177A JP 3092177 A JP3092177 A JP 3092177A JP S53116115 A JPS53116115 A JP S53116115A
Authority
JP
Japan
Prior art keywords
recording medium
magnetic recording
backing
protruded
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
JP3092177A
Other languages
Japanese (ja)
Other versions
JPS5840250B2 (en
Inventor
Takashi Suzuki
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 JP52030921A priority Critical patent/JPS5840250B2/en
Publication of JPS53116115A publication Critical patent/JPS53116115A/en
Publication of JPS5840250B2 publication Critical patent/JPS5840250B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To make magnetic characteristics for video better as compared to the film backing wherein inorganic fine-particles are protruded on the surface, by providing a magnetic thin film layer on the backing having specific crease-form protrusions composed of crystalline high polymer on the surface.
COPYRIGHT: (C)1978,JPO&Japio
JP52030921A 1977-03-18 1977-03-18 magnetic recording medium Expired JPS5840250B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52030921A JPS5840250B2 (en) 1977-03-18 1977-03-18 magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52030921A JPS5840250B2 (en) 1977-03-18 1977-03-18 magnetic recording medium

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP11499884A Division JPS60101727A (en) 1984-06-04 1984-06-04 Production of magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS53116115A true JPS53116115A (en) 1978-10-11
JPS5840250B2 JPS5840250B2 (en) 1983-09-05

Family

ID=12317145

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52030921A Expired JPS5840250B2 (en) 1977-03-18 1977-03-18 magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5840250B2 (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS573830A (en) * 1980-06-10 1982-01-09 Matsushita Electric Ind Co Ltd Vacuum metallizing method
JPS5792434A (en) * 1980-11-28 1982-06-09 Matsushita Electric Ind Co Ltd Manufacture of magnetic recording medium
JPS57167121A (en) * 1981-04-03 1982-10-14 Hitachi Maxell Ltd Magnetic recording medium
JPS57167122A (en) * 1981-04-03 1982-10-14 Hitachi Maxell Ltd Magnetic recording medium
JPS589214A (en) * 1981-07-07 1983-01-19 Matsushita Electric Ind Co Ltd Magnetic recording medium
JPS6085416A (en) * 1983-10-14 1985-05-14 Matsushita Electric Ind Co Ltd Magnetic recording medium
US4578729A (en) * 1981-10-15 1986-03-25 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium
US4645703A (en) * 1982-11-19 1987-02-24 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium
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
US4780354A (en) * 1986-02-05 1988-10-25 Tdk Corporation Magnetic recording medium
JPS6476422A (en) * 1987-09-16 1989-03-22 Fuji Electric Co Ltd Magnetic disk
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
JPH03113823A (en) * 1989-09-26 1991-05-15 Itochu Shoji Kk Recording disk substrate and its production
JPH03119517A (en) * 1989-10-02 1991-05-21 Itochu Shoji Kk Recording disk substrate and its production

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4850703A (en) * 1971-10-27 1973-07-17
JPS5416723A (en) * 1977-07-08 1979-02-07 Hitachi Ltd Solenoid valve

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4850703A (en) * 1971-10-27 1973-07-17
JPS5416723A (en) * 1977-07-08 1979-02-07 Hitachi Ltd Solenoid valve

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS573830A (en) * 1980-06-10 1982-01-09 Matsushita Electric Ind Co Ltd Vacuum metallizing method
JPS6046181B2 (en) * 1980-06-10 1985-10-15 松下電器産業株式会社 Vacuum deposition method
JPS5792434A (en) * 1980-11-28 1982-06-09 Matsushita Electric Ind Co Ltd Manufacture of magnetic recording medium
JPS6038769B2 (en) * 1980-11-28 1985-09-03 松下電器産業株式会社 Method for manufacturing magnetic recording media
JPH0315250B2 (en) * 1981-04-03 1991-02-28 Hitachi Maxell
JPS57167121A (en) * 1981-04-03 1982-10-14 Hitachi Maxell Ltd Magnetic recording medium
JPS57167122A (en) * 1981-04-03 1982-10-14 Hitachi Maxell Ltd Magnetic recording medium
JPH0315249B2 (en) * 1981-04-03 1991-02-28 Hitachi Maxell
JPS589214A (en) * 1981-07-07 1983-01-19 Matsushita Electric Ind Co Ltd Magnetic recording medium
JPH0551962B2 (en) * 1981-07-07 1993-08-04 Toray Industries
US4578729A (en) * 1981-10-15 1986-03-25 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium
US4645703A (en) * 1982-11-19 1987-02-24 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium
JPS6085416A (en) * 1983-10-14 1985-05-14 Matsushita Electric Ind Co Ltd Magnetic recording medium
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
US4780354A (en) * 1986-02-05 1988-10-25 Tdk Corporation Magnetic recording medium
JPS6476422A (en) * 1987-09-16 1989-03-22 Fuji Electric Co Ltd Magnetic disk
JPH03113823A (en) * 1989-09-26 1991-05-15 Itochu Shoji Kk Recording disk substrate and its production
JPH03119517A (en) * 1989-10-02 1991-05-21 Itochu Shoji Kk Recording disk substrate and its production

Also Published As

Publication number Publication date
JPS5840250B2 (en) 1983-09-05

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