IT1206136B - PROCEDURE FOR THE PRODUCTION OF AN ALUMINUM SUBSTRATE BY MAGNETIC REGISTRATION MEDIA. - Google Patents

PROCEDURE FOR THE PRODUCTION OF AN ALUMINUM SUBSTRATE BY MAGNETIC REGISTRATION MEDIA.

Info

Publication number
IT1206136B
IT1206136B IT8420101A IT2010184A IT1206136B IT 1206136 B IT1206136 B IT 1206136B IT 8420101 A IT8420101 A IT 8420101A IT 2010184 A IT2010184 A IT 2010184A IT 1206136 B IT1206136 B IT 1206136B
Authority
IT
Italy
Prior art keywords
procedure
production
aluminum substrate
registration media
magnetic registration
Prior art date
Application number
IT8420101A
Other languages
Italian (it)
Other versions
IT8420101A0 (en
Inventor
Koichi Yoshida
Yoshio Hirayama
Yasuo Oka
Takashi Kajiyama
Original Assignee
Nippon Light Metal Co
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 Light Metal Co filed Critical Nippon Light Metal Co
Publication of IT8420101A0 publication Critical patent/IT8420101A0/en
Application granted granted Critical
Publication of IT1206136B publication Critical patent/IT1206136B/en

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
    • C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/04—Electroplating: Baths therefor from solutions of chromium
    • 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)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Magnetic Record Carriers (AREA)
IT8420101A 1983-03-18 1984-03-16 PROCEDURE FOR THE PRODUCTION OF AN ALUMINUM SUBSTRATE BY MAGNETIC REGISTRATION MEDIA. IT1206136B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58044364A JPS59171023A (en) 1983-03-18 1983-03-18 Manufacture of alumite board for high density magnetic recording material

Publications (2)

Publication Number Publication Date
IT8420101A0 IT8420101A0 (en) 1984-03-16
IT1206136B true IT1206136B (en) 1989-04-14

Family

ID=12689451

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8420101A IT1206136B (en) 1983-03-18 1984-03-16 PROCEDURE FOR THE PRODUCTION OF AN ALUMINUM SUBSTRATE BY MAGNETIC REGISTRATION MEDIA.

Country Status (8)

Country Link
JP (1) JPS59171023A (en)
KR (1) KR840007910A (en)
CA (1) CA1237694A (en)
DE (1) DE3408753C2 (en)
FR (1) FR2542901B1 (en)
GB (1) GB2136448B (en)
IT (1) IT1206136B (en)
NL (1) NL8400849A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62149029A (en) * 1985-09-04 1987-07-03 Furukawa Alum Co Ltd Alumite magnetic disk substrate and its production
GB0208642D0 (en) 2002-04-16 2002-05-22 Accentus Plc Metal implants
GB0405680D0 (en) 2004-03-13 2004-04-21 Accentus Plc Metal implants
WO2009044203A1 (en) 2007-10-03 2009-04-09 Accentus Plc Method of manufacturing metal with biocidal properties

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH287575A (en) * 1951-01-27 1952-12-15 S A Vernal Process of electrolytic oxidation of aluminum and its alloys.
NL6609803A (en) * 1966-07-13 1968-01-15
NL6612707A (en) * 1966-09-09 1968-03-11
US4109287A (en) * 1972-04-14 1978-08-22 Pilot Man-Nun-Hitsu Kabushiki Kaisha Process for recording information or sound and process for preparation of recording materials used therefor
GB1464857A (en) * 1974-05-08 1977-02-16 Nat Res Dev Chromic acid anodising of aluminium and its alloys

Also Published As

Publication number Publication date
FR2542901A1 (en) 1984-09-21
JPS59171023A (en) 1984-09-27
FR2542901B1 (en) 1987-11-13
DE3408753A1 (en) 1984-09-20
NL8400849A (en) 1984-10-16
JPH0346890B2 (en) 1991-07-17
GB2136448A (en) 1984-09-19
GB2136448B (en) 1986-09-17
CA1237694A (en) 1988-06-07
GB8405910D0 (en) 1984-04-11
KR840007910A (en) 1984-12-11
IT8420101A0 (en) 1984-03-16
DE3408753C2 (en) 1986-04-17

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