JPS5148303A - - Google Patents

Info

Publication number
JPS5148303A
JPS5148303A JP49121948A JP12194874A JPS5148303A JP S5148303 A JPS5148303 A JP S5148303A JP 49121948 A JP49121948 A JP 49121948A JP 12194874 A JP12194874 A JP 12194874A JP S5148303 A JPS5148303 A JP S5148303A
Authority
JP
Japan
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
JP49121948A
Other languages
Japanese (ja)
Other versions
JPS5337203B2 (fr
Inventor
Seiji Hatsutori
Yoshiichi Ishii
Nobuo Inagaki
Toshio Kasai
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP12194874A priority Critical patent/JPS5337203B2/ja
Priority to NLAANVRAGE7512229,A priority patent/NL182180C/xx
Priority to FR7532000A priority patent/FR2289022A1/fr
Priority to DE19752547408 priority patent/DE2547408A1/de
Priority to GB43941/75A priority patent/GB1493160A/en
Publication of JPS5148303A publication Critical patent/JPS5148303A/ja
Publication of JPS5337203B2 publication Critical patent/JPS5337203B2/ja
Expired 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73913—Composites or coated substrates
    • 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73917—Metallic substrates, i.e. elemental metal or metal alloy substrates
    • G11B5/73919—Aluminium or titanium elemental or alloy substrates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
JP12194874A 1974-10-24 1974-10-24 Expired JPS5337203B2 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP12194874A JPS5337203B2 (fr) 1974-10-24 1974-10-24
NLAANVRAGE7512229,A NL182180C (nl) 1974-10-24 1975-10-17 Magnetisch schijfsubstraat voor registratie met grote opslagdichtheid.
FR7532000A FR2289022A1 (fr) 1974-10-24 1975-10-20 Support pour disque magnetique
DE19752547408 DE2547408A1 (de) 1974-10-24 1975-10-23 Magnetplattenkoerper
GB43941/75A GB1493160A (en) 1974-10-24 1975-10-24 Magnetic disc for recording with high storage density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12194874A JPS5337203B2 (fr) 1974-10-24 1974-10-24

Publications (2)

Publication Number Publication Date
JPS5148303A true JPS5148303A (fr) 1976-04-26
JPS5337203B2 JPS5337203B2 (fr) 1978-10-07

Family

ID=14823871

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12194874A Expired JPS5337203B2 (fr) 1974-10-24 1974-10-24

Country Status (5)

Country Link
JP (1) JPS5337203B2 (fr)
DE (1) DE2547408A1 (fr)
FR (1) FR2289022A1 (fr)
GB (1) GB1493160A (fr)
NL (1) NL182180C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5168207A (ja) * 1974-12-10 1976-06-12 Fujitsu Ltd Jikideisukuyokibanno seizohoho
JPS5545437U (fr) * 1978-09-14 1980-03-25

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3014718A1 (de) * 1980-04-17 1981-10-22 Ibm Deutschland Gmbh, 7000 Stuttgart Mehrschichtige magnetische duennfilmplatte mit kunstharzschicht sowie verfahren zur herstellung derselben
JPS59180832A (ja) * 1983-03-31 1984-10-15 Nippon Light Metal Co Ltd 磁気記録材用アルマイト基板
JPS6022733A (ja) * 1983-07-19 1985-02-05 Hitachi Metals Ltd 磁気デイスク基板
US4552820A (en) * 1984-04-25 1985-11-12 Lin Data Corporation Disc media
DE3619432A1 (de) * 1986-06-10 1987-12-17 Komatsu Mfg Co Ltd Verfahren zur herstellung eines elektrophotographischen photosensors

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5168207A (ja) * 1974-12-10 1976-06-12 Fujitsu Ltd Jikideisukuyokibanno seizohoho
JPS5545437U (fr) * 1978-09-14 1980-03-25
JPS5760957Y2 (fr) * 1978-09-14 1982-12-25

Also Published As

Publication number Publication date
FR2289022A1 (fr) 1976-05-21
DE2547408A1 (de) 1976-04-29
FR2289022B1 (fr) 1980-01-04
JPS5337203B2 (fr) 1978-10-07
NL7512229A (nl) 1976-04-27
GB1493160A (en) 1977-11-23
NL182180C (nl) 1988-01-18

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