GB2136448B - Anodising aluminium substrate for magnetic recording media - Google Patents

Anodising aluminium substrate for magnetic recording media

Info

Publication number
GB2136448B
GB2136448B GB08405910A GB8405910A GB2136448B GB 2136448 B GB2136448 B GB 2136448B GB 08405910 A GB08405910 A GB 08405910A GB 8405910 A GB8405910 A GB 8405910A GB 2136448 B GB2136448 B GB 2136448B
Authority
GB
United Kingdom
Prior art keywords
magnetic recording
recording media
aluminium substrate
anodising aluminium
anodising
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.)
Expired
Application number
GB08405910A
Other languages
English (en)
Other versions
GB8405910D0 (en
GB2136448A (en
Inventor
Koichi Yoshida
Yoshio Hirayama
Yasuo Oka
Takashi Kajiyama
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.)
Nippon Light Metal Co Ltd
Original Assignee
Nippon Light Metal 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 Nippon Light Metal Co Ltd filed Critical Nippon Light Metal Co Ltd
Publication of GB8405910D0 publication Critical patent/GB8405910D0/en
Publication of GB2136448A publication Critical patent/GB2136448A/en
Application granted granted Critical
Publication of GB2136448B publication Critical patent/GB2136448B/en
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
    • C25D11/06—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)
GB08405910A 1983-03-18 1984-03-07 Anodising aluminium substrate for magnetic recording media Expired GB2136448B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58044364A JPS59171023A (ja) 1983-03-18 1983-03-18 高密度磁気記録材用アルマイト基板の製造法

Publications (3)

Publication Number Publication Date
GB8405910D0 GB8405910D0 (en) 1984-04-11
GB2136448A GB2136448A (en) 1984-09-19
GB2136448B true GB2136448B (en) 1986-09-17

Family

ID=12689451

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08405910A Expired GB2136448B (en) 1983-03-18 1984-03-07 Anodising aluminium substrate for magnetic recording media

Country Status (8)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62149029A (ja) * 1985-09-04 1987-07-03 Furukawa Alum Co Ltd アルマイト磁気デイスク基板とその製造方法
GB0208642D0 (en) 2002-04-16 2002-05-22 Accentus Plc Metal implants
GB0405680D0 (en) 2004-03-13 2004-04-21 Accentus Plc Metal implants
KR101551208B1 (ko) 2007-10-03 2015-09-08 액센투스 메디컬 리미티드 살균 특성을 갖는 금속의 제조 방법

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH287575A (fr) * 1951-01-27 1952-12-15 S A Vernal Procédé d'oxydation électrolytique de l'aluminium et de ses alliages.
NL6609803A (ja) * 1966-07-13 1968-01-15
NL6612707A (ja) * 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
DE3408753A1 (de) 1984-09-20
GB8405910D0 (en) 1984-04-11
KR840007910A (ko) 1984-12-11
JPH0346890B2 (ja) 1991-07-17
JPS59171023A (ja) 1984-09-27
GB2136448A (en) 1984-09-19
CA1237694A (en) 1988-06-07
DE3408753C2 (de) 1986-04-17
FR2542901B1 (fr) 1987-11-13
NL8400849A (nl) 1984-10-16
IT1206136B (it) 1989-04-14
FR2542901A1 (fr) 1984-09-21
IT8420101A0 (it) 1984-03-16

Similar Documents

Publication Publication Date Title
DE3476596D1 (en) Thin film magnetic recording media
DE3479066D1 (en) Magnetic recording medium
GB2137532B (en) Magnetic recording medium
GB2150860B (en) Magnetic recording medium
GB2142043B (en) Magnetic recording media
DE3377755D1 (en) Magnetic recording media
DE3479615D1 (en) Magnetic recording medium
DE3480239D1 (en) Magnetic recording media
EP0137949A3 (en) Magnetic recording medium
DE3379613D1 (en) Magnetic head for perpendicular recording media
GB2148149B (en) Magnetic recording medium
EP0146861A3 (en) Thin layer magnetic head for perpendicular (vertical) recording
GB2114990B (en) Magnetic coating for recording media
DE3464977D1 (en) Magnetic recording medium
DE3468570D1 (en) Magnetic recording medium
DE3468569D1 (en) Magnetic recording medium
DE3472321D1 (en) Magnetic recording medium
GB2148944B (en) Magnetic recording medium
GB2127437B (en) Magnetic recording media
DE3476711D1 (en) Magnetic recording medium
EP0125150A3 (en) Magnetic recording medium
GB2145939B (en) Magnetic recording medium
GB2146921B (en) Magnetic recording medium
GB2150859B (en) Magnetic recording medium
GB2152081B (en) Recording medium for perpendicular magnetization

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee