FR2203131A1 - - Google Patents

Info

Publication number
FR2203131A1
FR2203131A1 FR7330995A FR7330995A FR2203131A1 FR 2203131 A1 FR2203131 A1 FR 2203131A1 FR 7330995 A FR7330995 A FR 7330995A FR 7330995 A FR7330995 A FR 7330995A FR 2203131 A1 FR2203131 A1 FR 2203131A1
Authority
FR
France
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
FR7330995A
Other languages
French (fr)
Other versions
FR2203131B1 (en
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2203131A1 publication Critical patent/FR2203131A1/fr
Application granted granted Critical
Publication of FR2203131B1 publication Critical patent/FR2203131B1/fr
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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/85—Coating a support with a magnetic layer by vapour deposition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/26—Thin magnetic films, e.g. of one-domain structure characterised by the substrate or intermediate layers
    • H01F10/28—Thin magnetic films, e.g. of one-domain structure characterised by the substrate or intermediate layers characterised by the composition of the substrate

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)
FR7330995A 1972-10-14 1973-08-22 Expired FR2203131B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722250481 DE2250481C3 (en) 1972-10-14 1972-10-14 Process for the production of a magnetic recording medium

Publications (2)

Publication Number Publication Date
FR2203131A1 true FR2203131A1 (en) 1974-05-10
FR2203131B1 FR2203131B1 (en) 1976-11-19

Family

ID=5859060

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7330995A Expired FR2203131B1 (en) 1972-10-14 1973-08-22

Country Status (4)

Country Link
JP (1) JPS5433522B2 (en)
DE (1) DE2250481C3 (en)
FR (1) FR2203131B1 (en)
GB (1) GB1379360A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503909A1 (en) * 1981-04-14 1982-10-15 Sony Corp MAGNETIC RECORDING MEDIUM

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1599161A (en) * 1976-07-15 1981-09-30 Matsushita Electric Ind Co Ltd Magnetic recording medium and method of making the same
JPS5389000A (en) * 1977-01-18 1978-08-04 Mitsubishi Metal Corp Abrasionnresisting magnetic alloy laminating sheet
US4271232A (en) * 1978-08-28 1981-06-02 International Business Machines Corporation Amorphous magnetic film
US4245008A (en) * 1978-10-30 1981-01-13 International Business Machines Corporation Corrosion resistant magnetic recording media
DE2909891A1 (en) 1979-03-14 1980-09-25 Basf Ag MAGNETIC RECORDING CARRIER
JPS5847738Y2 (en) * 1980-05-07 1983-10-31 松下電工株式会社 Structure of small electrical equipment
US4376963A (en) * 1980-12-19 1983-03-15 International Business Machines Corporation Composite magnetic recording disk
JPS57191830A (en) * 1981-05-22 1982-11-25 Sony Corp Magnetic recording medium
JPS6080117A (en) * 1983-10-11 1985-05-08 Hitachi Condenser Co Ltd Magnetic recording medium
JPH07118075B2 (en) * 1986-09-01 1995-12-18 株式会社日立製作所 Magnetic recording medium for magnetic disk and manufacturing method thereof
US5316631A (en) * 1989-02-16 1994-05-31 Victor Company Of Japan, Ltd. Method for fabricating a magnetic recording medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1106710A (en) * 1964-09-16 1968-03-20 Siemens Ag Improvements in or relating to processes for the manufacture of storage matrices

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1228307B (en) * 1961-07-17 1966-11-10 Ibm Magnetic recording medium with a magnetic layer with low surface roughness and high coercive force
US3342632A (en) * 1964-08-05 1967-09-19 Ibm Magnetic coating
JPS4414770Y1 (en) * 1966-10-24 1969-06-24

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1106710A (en) * 1964-09-16 1968-03-20 Siemens Ag Improvements in or relating to processes for the manufacture of storage matrices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503909A1 (en) * 1981-04-14 1982-10-15 Sony Corp MAGNETIC RECORDING MEDIUM

Also Published As

Publication number Publication date
DE2250481B2 (en) 1980-10-30
GB1379360A (en) 1975-01-02
JPS4974911A (en) 1974-07-19
FR2203131B1 (en) 1976-11-19
JPS5433522B2 (en) 1979-10-22
DE2250481C3 (en) 1981-08-27
DE2250481A1 (en) 1974-04-18

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Legal Events

Date Code Title Description
ST Notification of lapse