JPS5517851A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS5517851A
JPS5517851A JP8968078A JP8968078A JPS5517851A JP S5517851 A JPS5517851 A JP S5517851A JP 8968078 A JP8968078 A JP 8968078A JP 8968078 A JP8968078 A JP 8968078A JP S5517851 A JPS5517851 A JP S5517851A
Authority
JP
Japan
Prior art keywords
thin film
substrate
thermal contraction
contraction rate
recording medium
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.)
Pending
Application number
JP8968078A
Other languages
Japanese (ja)
Inventor
Hisao Matsuura
Toshiaki Kunieda
Koichi Shinohara
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 JP8968078A priority Critical patent/JPS5517851A/en
Publication of JPS5517851A publication Critical patent/JPS5517851A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)

Abstract

PURPOSE: To prevent curl which has a bad influence on running efficiency, wind disturbance, head touch, etc., of a metallic thin film-type magnetic tape, by specifying the thermal contraction rate of a plastic film substrate by directions.
CONSTITUTION: Thin film 2 of a ferromagnetic metal is formed on plastic film substrate 1 where the thermal contraction rate in the width direction is larger than that in the length direction. As a result, a anisotropic residual internal stress generated when thin film 2 is formed on running substrate 1 is relaxed, so that curl can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP8968078A 1978-07-21 1978-07-21 Magnetic recording medium Pending JPS5517851A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8968078A JPS5517851A (en) 1978-07-21 1978-07-21 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8968078A JPS5517851A (en) 1978-07-21 1978-07-21 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS5517851A true JPS5517851A (en) 1980-02-07

Family

ID=13977464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8968078A Pending JPS5517851A (en) 1978-07-21 1978-07-21 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5517851A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57113418A (en) * 1981-01-05 1982-07-14 Teijin Ltd Magnetic recording medium
JPS5814319A (en) * 1981-07-20 1983-01-27 Teijin Ltd Vertically magnetized recording medium
JPS6264545A (en) * 1985-05-29 1987-03-23 帝人株式会社 Polyester film for metallic thin-film magnetic record medium
JPH01192012A (en) * 1988-01-28 1989-08-02 Hitachi Maxell Ltd Magnetic recording medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5340506A (en) * 1976-09-24 1978-04-13 Matsushita Electric Ind Co Ltd Magnetic recording medium

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5340506A (en) * 1976-09-24 1978-04-13 Matsushita Electric Ind Co Ltd Magnetic recording medium

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57113418A (en) * 1981-01-05 1982-07-14 Teijin Ltd Magnetic recording medium
JPH0152818B2 (en) * 1981-01-05 1989-11-10 Teijin Ltd
JPS5814319A (en) * 1981-07-20 1983-01-27 Teijin Ltd Vertically magnetized recording medium
JPH0152816B2 (en) * 1981-07-20 1989-11-10 Teijin Ltd
JPS6264545A (en) * 1985-05-29 1987-03-23 帝人株式会社 Polyester film for metallic thin-film magnetic record medium
JPH0433273B2 (en) * 1985-05-29 1992-06-02 Teijin Ltd
JPH01192012A (en) * 1988-01-28 1989-08-02 Hitachi Maxell Ltd Magnetic recording medium
JP2674655B2 (en) * 1988-01-28 1997-11-12 日立マクセル株式会社 Magnetic tape cartridge

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