JPH0319609B2 - - Google Patents

Info

Publication number
JPH0319609B2
JPH0319609B2 JP56015301A JP1530181A JPH0319609B2 JP H0319609 B2 JPH0319609 B2 JP H0319609B2 JP 56015301 A JP56015301 A JP 56015301A JP 1530181 A JP1530181 A JP 1530181A JP H0319609 B2 JPH0319609 B2 JP H0319609B2
Authority
JP
Japan
Prior art keywords
magnetic
light transmittance
film
base film
disk
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.)
Expired - Lifetime
Application number
JP56015301A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57130232A (en
Inventor
Seiji Nishioka
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.)
Maxell Ltd
Original Assignee
Hitachi Maxell 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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP56015301A priority Critical patent/JPS57130232A/ja
Publication of JPS57130232A publication Critical patent/JPS57130232A/ja
Publication of JPH0319609B2 publication Critical patent/JPH0319609B2/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
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer

Landscapes

  • Magnetic Record Carriers (AREA)
JP56015301A 1981-02-03 1981-02-03 Magnetic recording medium Granted JPS57130232A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56015301A JPS57130232A (en) 1981-02-03 1981-02-03 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56015301A JPS57130232A (en) 1981-02-03 1981-02-03 Magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS57130232A JPS57130232A (en) 1982-08-12
JPH0319609B2 true JPH0319609B2 (en]) 1991-03-15

Family

ID=11884983

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56015301A Granted JPS57130232A (en) 1981-02-03 1981-02-03 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57130232A (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021177421A1 (ja) 2020-03-05 2021-09-10 日本山村硝子株式会社 医療用固定具

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4603073A (en) * 1983-12-22 1986-07-29 Minnesota Mining And Manufacturing Company Opaque polyester film containing fine carbon black particles
US4546036A (en) * 1983-12-22 1985-10-08 Minnesota Mining And Manufacturing Company Magnetic recording medium having opaque polyester film base
JPH0679373B2 (ja) * 1984-07-27 1994-10-05 株式会社東芝 磁気記録媒体

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5249806A (en) * 1975-10-20 1977-04-21 Fujitsu Ltd Substrate for magnetic discs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021177421A1 (ja) 2020-03-05 2021-09-10 日本山村硝子株式会社 医療用固定具

Also Published As

Publication number Publication date
JPS57130232A (en) 1982-08-12

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