BE798227A - Matiere d'enregistrement magnetique et procede de fabrication - Google Patents

Matiere d'enregistrement magnetique et procede de fabrication

Info

Publication number
BE798227A
BE798227A BE130026A BE130026A BE798227A BE 798227 A BE798227 A BE 798227A BE 130026 A BE130026 A BE 130026A BE 130026 A BE130026 A BE 130026A BE 798227 A BE798227 A BE 798227A
Authority
BE
Belgium
Prior art keywords
manufacturing
magnetic recording
recording material
magnetic
recording
Prior art date
Application number
BE130026A
Other languages
English (en)
Inventor
Satoshi Kawai
Hajime Sato
Toshimatsu Sakai
Original Assignee
Pilot Pen Co 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 Pilot Pen Co Ltd filed Critical Pilot Pen Co Ltd
Publication of BE798227A publication Critical patent/BE798227A/fr

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)
BE130026A 1972-04-14 1973-04-13 Matiere d'enregistrement magnetique et procede de fabrication BE798227A (fr)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BE798227A true BE798227A (fr) 1973-07-31

Family

ID=12497044

Family Applications (1)

Application Number Title Priority Date Filing Date
BE130026A BE798227A (fr) 1972-04-14 1973-04-13 Matiere d'enregistrement magnetique et procede de fabrication

Country Status (9)

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

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939966U (fr) * 1972-07-10 1974-04-08
JPS51148407A (en) * 1975-06-13 1976-12-20 Mitsubishi Electric Corp Magnetic recording medium
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
JPS5671821A (en) * 1979-11-14 1981-06-15 Hitachi Ltd Substrate for magnetic disc and its manufacture
DE3035148A1 (de) * 1980-09-18 1982-04-22 Ibm Deutschland Gmbh, 7000 Stuttgart Magnetischer aufzeichnungstraeger fuer vertikales aufzeichnen
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
DE3277337D1 (en) * 1981-09-28 1987-10-22 Xerox Corp Post treatment of perpendicular magnetic recording media
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
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

Also Published As

Publication number Publication date
CH570659A5 (fr) 1975-12-15
CA1020489A (fr) 1977-11-08
JPS4942305A (fr) 1974-04-20
FR2179731B1 (fr) 1976-09-10
JPS5121562B2 (fr) 1976-07-03
NL7301706A (fr) 1973-10-16
DE2309594A1 (de) 1973-10-18
FR2179731A1 (fr) 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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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: PILOT MAN NEN HITSU K.K.

Effective date: 19900430