JPS4942305A - - Google Patents

Info

Publication number
JPS4942305A
JPS4942305A JP47037421A JP3742172A JPS4942305A JP S4942305 A JPS4942305 A JP S4942305A JP 47037421 A JP47037421 A JP 47037421A JP 3742172 A JP3742172 A JP 3742172A JP S4942305 A JPS4942305 A JP S4942305A
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
JP47037421A
Other versions
JPS5121562B2 (ja
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 filed Critical
Priority to JP47037421A priority Critical patent/JPS5121562B2/ja
Priority to GB381773A priority patent/GB1418933A/en
Priority to CA162,427A priority patent/CA1020489A/en
Priority to CH139573A priority patent/CH570659A5/xx
Priority to NL7301706.A priority patent/NL157443B/xx
Priority to IT48348/73A priority patent/IT977418B/it
Priority to DE2309594A priority patent/DE2309594C3/de
Priority to FR7307396A priority patent/FR2179731B1/fr
Priority to BE130026A priority patent/BE798227A/xx
Publication of JPS4942305A publication Critical patent/JPS4942305A/ja
Priority to US05/543,006 priority patent/US4109287A/en
Publication of JPS5121562B2 publication Critical patent/JPS5121562B2/ja
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/18—After-treatment, e.g. pore-sealing
    • C25D11/20—Electrolytic after-treatment
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/024—Anodisation under pulsed or modulated current or potential
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/045—Anodisation of aluminium or alloys based thereon for forming AAO templates
    • 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
    • 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
    • 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
    • H01F10/06—Thin magnetic films, e.g. of one-domain structure characterised by the coupling or physical contact with connecting or interacting conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)
JP47037421A 1972-04-14 1972-04-14 Expired JPS5121562B2 (ja)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP47037421A JPS5121562B2 (ja) 1972-04-14 1972-04-14
GB381773A GB1418933A (en) 1972-04-14 1973-01-25 Magnetic recording materials and process for preparation thereof
CA162,427A CA1020489A (en) 1972-04-14 1973-01-30 Magnetic recording materials and process for preparation thereof
CH139573A CH570659A5 (ja) 1972-04-14 1973-01-31
NL7301706.A NL157443B (nl) 1972-04-14 1973-02-07 Magnetisch registratiemateriaal, alsmede werkwijze voor het vervaardigen van dit magnetische registratiemateriaal.
IT48348/73A IT977418B (it) 1972-04-14 1973-02-20 Materiale di registrazione magneti ca e procedimento per la sua pre parazione
DE2309594A DE2309594C3 (de) 1972-04-14 1973-02-26 Anisotropes magnetisches Aufzeichnungsmaterial und Verfahren zu seiner Herstellung
FR7307396A FR2179731B1 (ja) 1972-04-14 1973-03-01
BE130026A BE798227A (fr) 1972-04-14 1973-04-13 Matiere d'enregistrement magnetique et procede de fabrication
US05/543,006 US4109287A (en) 1972-04-14 1975-01-20 Process for recording information or sound and process for preparation of recording materials used therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47037421A JPS5121562B2 (ja) 1972-04-14 1972-04-14

Publications (2)

Publication Number Publication Date
JPS4942305A true JPS4942305A (ja) 1974-04-20
JPS5121562B2 JPS5121562B2 (ja) 1976-07-03

Family

ID=12497044

Family Applications (1)

Application Number Title Priority Date Filing Date
JP47037421A Expired JPS5121562B2 (ja) 1972-04-14 1972-04-14

Country Status (9)

Country Link
JP (1) JPS5121562B2 (ja)
BE (1) BE798227A (ja)
CA (1) CA1020489A (ja)
CH (1) CH570659A5 (ja)
DE (1) DE2309594C3 (ja)
FR (1) FR2179731B1 (ja)
GB (1) GB1418933A (ja)
IT (1) IT977418B (ja)
NL (1) NL157443B (ja)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939966U (ja) * 1972-07-10 1974-04-08
JPS51148407A (en) * 1975-06-13 1976-12-20 Mitsubishi Electric Corp Magnetic recording medium
JPS5671821A (en) * 1979-11-14 1981-06-15 Hitachi Ltd Substrate for magnetic disc and its manufacture
JPS5746320A (en) * 1980-09-01 1982-03-16 Pilot Pen Co Ltd:The Magnetic recording material and its production
JPS57158013A (en) * 1981-03-24 1982-09-29 Nec Corp Magnetic recording body
JPS59130406A (ja) * 1983-01-17 1984-07-27 Nippon Telegr & Teleph Corp <Ntt> 粉末永久磁石の製造方法
JPS59207029A (ja) * 1983-05-10 1984-11-24 Nippon Gakki Seizo Kk 磁気記録媒体およびその製法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2616662C2 (de) * 1976-04-15 1984-02-02 Dornier System Gmbh, 7990 Friedrichshafen Verfahren zur herstellung einer selektiven solarabsorberschicht auf aluminium
DE2658956A1 (de) * 1976-12-24 1978-06-29 Ibm Deutschland Vertikales magnetisches informationsaufzeichnungssystem
DE3035148A1 (de) * 1980-09-18 1982-04-22 Ibm Deutschland Gmbh, 7000 Stuttgart Magnetischer aufzeichnungstraeger fuer vertikales aufzeichnen
DE3277337D1 (en) * 1981-09-28 1987-10-22 Xerox Corp Post treatment of perpendicular magnetic recording media
US4808279A (en) * 1986-10-02 1989-02-28 The University Of Toronto Innovations Foundation Process for preparing magnetic recording material
US5923511A (en) * 1995-05-26 1999-07-13 International Business Machines Corporation Directly contactable disk for vertical magnetic data storage
FR3044329A1 (fr) * 2015-11-27 2017-06-02 Constellium Neuf-Brisach Procede de depot electrolytique d'une couche de conversion sous courant alternatif

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939966U (ja) * 1972-07-10 1974-04-08
JPS51148407A (en) * 1975-06-13 1976-12-20 Mitsubishi Electric Corp Magnetic recording medium
JPS5671821A (en) * 1979-11-14 1981-06-15 Hitachi Ltd Substrate for magnetic disc and its manufacture
JPS5746320A (en) * 1980-09-01 1982-03-16 Pilot Pen Co Ltd:The Magnetic recording material and its production
JPS57158013A (en) * 1981-03-24 1982-09-29 Nec Corp Magnetic recording body
JPH0323975B2 (ja) * 1981-03-24 1991-04-02 Nippon Electric Co
JPS59130406A (ja) * 1983-01-17 1984-07-27 Nippon Telegr & Teleph Corp <Ntt> 粉末永久磁石の製造方法
JPH0412603B2 (ja) * 1983-01-17 1992-03-05 Nippon Telegraph & Telephone
JPS59207029A (ja) * 1983-05-10 1984-11-24 Nippon Gakki Seizo Kk 磁気記録媒体およびその製法

Also Published As

Publication number Publication date
CH570659A5 (ja) 1975-12-15
CA1020489A (en) 1977-11-08
FR2179731B1 (ja) 1976-09-10
JPS5121562B2 (ja) 1976-07-03
NL7301706A (ja) 1973-10-16
DE2309594A1 (de) 1973-10-18
BE798227A (fr) 1973-07-31
FR2179731A1 (ja) 1973-11-23
IT977418B (it) 1974-09-10
DE2309594B2 (de) 1975-01-16
GB1418933A (en) 1975-12-24
NL157443B (nl) 1978-07-17
DE2309594C3 (de) 1975-08-28

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