FR2321742A1 - METHOD FOR MANUFACTURING MULTI-LAYER MAGNETIC RECORDING MEDIA - Google Patents

METHOD FOR MANUFACTURING MULTI-LAYER MAGNETIC RECORDING MEDIA

Info

Publication number
FR2321742A1
FR2321742A1 FR7625070A FR7625070A FR2321742A1 FR 2321742 A1 FR2321742 A1 FR 2321742A1 FR 7625070 A FR7625070 A FR 7625070A FR 7625070 A FR7625070 A FR 7625070A FR 2321742 A1 FR2321742 A1 FR 2321742A1
Authority
FR
France
Prior art keywords
magnetic recording
recording media
layer magnetic
manufacturing multi
manufacturing
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
FR7625070A
Other languages
French (fr)
Other versions
FR2321742B1 (en
Inventor
Hans Strauss
Peter Dipl Ing Nagel
Heinrich Dipl Ing Wittkamp
Roland Dipl Chem Dr Falk
Karl Dipl Ing Dr Mahler
Karl Hauck
Paul Ing Grad Willmann
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of FR2321742A1 publication Critical patent/FR2321742A1/en
Application granted granted Critical
Publication of FR2321742B1 publication Critical patent/FR2321742B1/en
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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/716—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by two or more magnetic layers
    • 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
    • G11B5/842—Coating a support with a liquid magnetic dispersion
    • 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
    • G11B5/842—Coating a support with a liquid magnetic dispersion
    • G11B5/845—Coating a support with a liquid magnetic dispersion in a magnetic field

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Coating Apparatus (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
FR7625070A 1975-08-19 1976-08-18 METHOD FOR MANUFACTURING MULTI-LAYER MAGNETIC RECORDING MEDIA Expired FR2321742B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2536781A DE2536781C3 (en) 1975-08-19 1975-08-19 METHOD FOR PRODUCING MULTI-LAYER MAGNETOGRAM CARRIERS

Publications (2)

Publication Number Publication Date
FR2321742A1 true FR2321742A1 (en) 1977-03-18
FR2321742B1 FR2321742B1 (en) 1980-05-09

Family

ID=5954255

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7625070A Expired FR2321742B1 (en) 1975-08-19 1976-08-18 METHOD FOR MANUFACTURING MULTI-LAYER MAGNETIC RECORDING MEDIA

Country Status (5)

Country Link
JP (1) JPS5226202A (en)
DE (1) DE2536781C3 (en)
FR (1) FR2321742B1 (en)
GB (1) GB1562601A (en)
NL (1) NL181692C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994003890A1 (en) * 1992-08-07 1994-02-17 Basf Magnetics Gmbh Device for producing a magnetic recording substrate

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55158237A (en) * 1979-05-30 1980-12-09 Agency Of Ind Science & Technol Selective separation of high concentration metal ion
JPS6231384U (en) * 1985-08-07 1987-02-25
JPS6292132A (en) * 1985-10-18 1987-04-27 Fuji Photo Film Co Ltd Manufacture of magnetic recording medium
JPS62124631A (en) * 1985-11-26 1987-06-05 Fuji Photo Film Co Ltd Coating method for magnetic recording medium
JPS62212933A (en) * 1986-03-13 1987-09-18 Fuji Photo Film Co Ltd Manufacture of magnetic recording medium
US5384182A (en) * 1990-05-11 1995-01-24 Kabushiki Kaisha Toshiba Magnetic recording medium and a method for producing the same wherein the medium has two magnetic layers differing in degree of orientation
US5494732A (en) * 1992-01-06 1996-02-27 Kabushiki Kaisha Toshiba Magnetic recording medium and a method for producing the same wherein the medium has two magnetic layers differing in degree of orientation
US6579592B1 (en) 1996-11-29 2003-06-17 Fuji Photo Film Co., Ltd Magnetic recording tape with controlled Hc and magnetic flux/unit area value and controlled Cl/Fe intensity
US6432503B2 (en) 1997-03-31 2002-08-13 Fuji Photo Film Co., Ltd. Magnetic recording medium
EP0889464B1 (en) 1997-06-30 2003-09-03 Fuji Photo Film Co., Ltd. Magnetic recording medium
US6106900A (en) * 1998-01-21 2000-08-22 Alcan International Limited Multi-layer coating of elongated strip articles
US6444290B1 (en) 1998-06-11 2002-09-03 Fuji Photo Film Co., Ltd. Magnetic recording medium comprising a support containing a specific size filler and having a specific concentration of surface protrusions
JP2000011352A (en) 1998-06-22 2000-01-14 Fuji Photo Film Co Ltd Magnetic recording medium
EP2765614A1 (en) * 2013-02-12 2014-08-13 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO Roll-to-roll apparatus and method for manufacturing a product comprising a target substrate provided with at least one foil shaped component
CA3056560C (en) * 2017-03-14 2021-01-12 Nissan Motor Co., Ltd. Die head apparatus, coating method, and laminated body forming apparatus
US10777418B2 (en) * 2017-06-14 2020-09-15 Rohm And Haas Electronic Materials Cmp Holdings, I Biased pulse CMP groove pattern

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633431A (en) * 1947-12-20 1953-03-31 Shellmar Products Corp Magnetic recording tape and method of making same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633431A (en) * 1947-12-20 1953-03-31 Shellmar Products Corp Magnetic recording tape and method of making same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994003890A1 (en) * 1992-08-07 1994-02-17 Basf Magnetics Gmbh Device for producing a magnetic recording substrate

Also Published As

Publication number Publication date
DE2536781C3 (en) 1978-03-16
DE2536781B2 (en) 1977-07-14
FR2321742B1 (en) 1980-05-09
NL181692C (en) 1987-10-01
GB1562601A (en) 1980-03-12
JPS5226202A (en) 1977-02-26
DE2536781A1 (en) 1977-03-17
NL7609132A (en) 1977-02-22
JPS576178B2 (en) 1982-02-03

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Legal Events

Date Code Title Description
ST Notification of lapse