JPS5249806A - Substrate for magnetic discs - Google Patents

Substrate for magnetic discs

Info

Publication number
JPS5249806A
JPS5249806A JP12526975A JP12526975A JPS5249806A JP S5249806 A JPS5249806 A JP S5249806A JP 12526975 A JP12526975 A JP 12526975A JP 12526975 A JP12526975 A JP 12526975A JP S5249806 A JPS5249806 A JP S5249806A
Authority
JP
Japan
Prior art keywords
substrate
magnetic discs
magnetic disc
aluminum
core material
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
JP12526975A
Other languages
Japanese (ja)
Inventor
Tadao Hayashi
Takehiko Sato
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP12526975A priority Critical patent/JPS5249806A/en
Publication of JPS5249806A publication Critical patent/JPS5249806A/en
Pending legal-status Critical Current

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  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE: Aluminum of high purity is fixed to the core material for a magnetic disc, whereby sufficient mechanical stength of the magnetic disc and its satisfactory surface characteristics may be obtained simultaneously.
COPYRIGHT: (C)1977,JPO&Japio
JP12526975A 1975-10-20 1975-10-20 Substrate for magnetic discs Pending JPS5249806A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12526975A JPS5249806A (en) 1975-10-20 1975-10-20 Substrate for magnetic discs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12526975A JPS5249806A (en) 1975-10-20 1975-10-20 Substrate for magnetic discs

Publications (1)

Publication Number Publication Date
JPS5249806A true JPS5249806A (en) 1977-04-21

Family

ID=14905890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12526975A Pending JPS5249806A (en) 1975-10-20 1975-10-20 Substrate for magnetic discs

Country Status (1)

Country Link
JP (1) JPS5249806A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57130232A (en) * 1981-02-03 1982-08-12 Hitachi Maxell Ltd Magnetic recording medium
JPS59157255A (en) * 1983-02-25 1984-09-06 Nippon Light Metal Co Ltd Aluminum alloy material for superprecision working to form specular surface

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NATIONAL TECHNICAL REPORT=1975 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57130232A (en) * 1981-02-03 1982-08-12 Hitachi Maxell Ltd Magnetic recording medium
JPH0319609B2 (en) * 1981-02-03 1991-03-15 Hitachi Maxell
JPS59157255A (en) * 1983-02-25 1984-09-06 Nippon Light Metal Co Ltd Aluminum alloy material for superprecision working to form specular surface
JPS6232260B2 (en) * 1983-02-25 1987-07-14 Nippon Light Metal Co

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