JPS5788531A - Manufacture for magnetic recording medium - Google Patents

Manufacture for magnetic recording medium

Info

Publication number
JPS5788531A
JPS5788531A JP16388580A JP16388580A JPS5788531A JP S5788531 A JPS5788531 A JP S5788531A JP 16388580 A JP16388580 A JP 16388580A JP 16388580 A JP16388580 A JP 16388580A JP S5788531 A JPS5788531 A JP S5788531A
Authority
JP
Japan
Prior art keywords
polymer substrate
oxygen
high polymer
recording medium
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
JP16388580A
Other languages
Japanese (ja)
Other versions
JPS6156563B2 (en
Inventor
Kazuo Iwaoka
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 JP16388580A priority Critical patent/JPS5788531A/en
Publication of JPS5788531A publication Critical patent/JPS5788531A/en
Publication of JPS6156563B2 publication Critical patent/JPS6156563B2/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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/851—Coating a support with a magnetic layer by sputtering

Abstract

PURPOSE:To obtain a magnetic recording medium with a thin film magnetic substance layer and of high coercive force easily, by supplying oxygen to the magnetic layer forming part of a high polymer substrate and reversing the flow of the oxygen against the running direction of the high polymer substrate. CONSTITUTION:When a high polymer substrate of about 100mm. wide, and about >=100m long is continuously run in a vacuum tank of <=1/10<3>Torr., a single or plurality of magnetic substance such as iron, cobalt and nickel are continuously evaporated to obtain a thin film magnetic layer on the surface of the substrate. At the lamination of the magnetic layer, oxygen is applied to the said high polymer substrate and near the evaporating point of magnetic substance, so that the flow of the oxygen is reversed against the running direction of the high polymer substrate. Thus, the cost can be reduced because mass-production of high density recording media can be made and the method of oxygen supply is simple.
JP16388580A 1980-11-20 1980-11-20 Manufacture for magnetic recording medium Granted JPS5788531A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16388580A JPS5788531A (en) 1980-11-20 1980-11-20 Manufacture for magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16388580A JPS5788531A (en) 1980-11-20 1980-11-20 Manufacture for magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS5788531A true JPS5788531A (en) 1982-06-02
JPS6156563B2 JPS6156563B2 (en) 1986-12-03

Family

ID=15782643

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16388580A Granted JPS5788531A (en) 1980-11-20 1980-11-20 Manufacture for magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5788531A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2536252A (en) * 2015-03-10 2016-09-14 Bobst Manchester Ltd Improved vacuum coater

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5342010A (en) * 1976-09-28 1978-04-17 Matsushita Electric Ind Co Ltd Preparation of magnetic recording medium
JPS5419199A (en) * 1977-07-12 1979-02-13 Matsushita Electric Ind Co Ltd Magnetic recording medium porcess
JPS5629A (en) * 1979-06-15 1981-01-06 Ulvac Corp Vacuum-evaporated film type magnetic recording substance and its manufacture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5342010A (en) * 1976-09-28 1978-04-17 Matsushita Electric Ind Co Ltd Preparation of magnetic recording medium
JPS5419199A (en) * 1977-07-12 1979-02-13 Matsushita Electric Ind Co Ltd Magnetic recording medium porcess
JPS5629A (en) * 1979-06-15 1981-01-06 Ulvac Corp Vacuum-evaporated film type magnetic recording substance and its manufacture

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2536252A (en) * 2015-03-10 2016-09-14 Bobst Manchester Ltd Improved vacuum coater
GB2559685A (en) * 2015-03-10 2018-08-15 Bobst Manchester Ltd Vacuum Coater For Coating A Web
GB2536252B (en) * 2015-03-10 2018-10-10 Bobst Manchester Ltd Method of operating a vacuum coater for coating a web
GB2559685B (en) * 2015-03-10 2019-06-12 Bobst Manchester Ltd Vacuum Coater For Coating A Web
EP3879000A1 (en) 2015-03-10 2021-09-15 Bobst Manchester Limited Coated web, vacuum coater and methods

Also Published As

Publication number Publication date
JPS6156563B2 (en) 1986-12-03

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