GB0705021D0 - Substrate for magnetic disk - Google Patents

Substrate for magnetic disk

Info

Publication number
GB0705021D0
GB0705021D0 GBGB0705021.4A GB0705021A GB0705021D0 GB 0705021 D0 GB0705021 D0 GB 0705021D0 GB 0705021 A GB0705021 A GB 0705021A GB 0705021 D0 GB0705021 D0 GB 0705021D0
Authority
GB
United Kingdom
Prior art keywords
substrate
magnetic disk
disk
magnetic
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
GBGB0705021.4A
Other versions
GB2435263A (en
GB2435263B (en
GB2435263A9 (en
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.)
Kao Corp
Original Assignee
Kao Corp
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
Priority claimed from JP2003290666A external-priority patent/JP4707311B2/en
Application filed by Kao Corp filed Critical Kao Corp
Priority to GB0705021A priority Critical patent/GB2435263B/en
Publication of GB0705021D0 publication Critical patent/GB0705021D0/en
Publication of GB2435263A publication Critical patent/GB2435263A/en
Publication of GB2435263A9 publication Critical patent/GB2435263A9/en
Application granted granted Critical
Publication of GB2435263B publication Critical patent/GB2435263B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09G—POLISHING COMPOSITIONS; SKI WAXES
    • C09G1/00—Polishing compositions
    • C09G1/02—Polishing compositions containing abrasives or grinding agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • C09K3/1454—Abrasive powders, suspensions and pastes for polishing
    • C09K3/1463—Aqueous liquid suspensions
    • 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
    • G11B5/73913—Composites or coated substrates
    • 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
    • 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
    • G11B5/73921—Glass or ceramic substrates
GB0705021A 2003-08-08 2004-07-23 Substrate for magnetic disk and polishing method therefor Expired - Fee Related GB2435263B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0705021A GB2435263B (en) 2003-08-08 2004-07-23 Substrate for magnetic disk and polishing method therefor

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2003290666A JP4707311B2 (en) 2003-08-08 2003-08-08 Magnetic disk substrate
GB0416502A GB2405151B (en) 2003-08-08 2004-07-23 Substrate for magnetic disk
GB0705021A GB2435263B (en) 2003-08-08 2004-07-23 Substrate for magnetic disk and polishing method therefor

Publications (4)

Publication Number Publication Date
GB0705021D0 true GB0705021D0 (en) 2007-04-25
GB2435263A GB2435263A (en) 2007-08-22
GB2435263A9 GB2435263A9 (en) 2007-09-12
GB2435263B GB2435263B (en) 2007-11-28

Family

ID=38645855

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0705021A Expired - Fee Related GB2435263B (en) 2003-08-08 2004-07-23 Substrate for magnetic disk and polishing method therefor

Country Status (1)

Country Link
GB (1) GB2435263B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8247326B2 (en) * 2008-07-10 2012-08-21 Cabot Microelectronics Corporation Method of polishing nickel-phosphorous

Also Published As

Publication number Publication date
GB2435263A (en) 2007-08-22
GB2435263B (en) 2007-11-28
GB2435263A9 (en) 2007-09-12

Similar Documents

Publication Publication Date Title
GB2405151B (en) Substrate for magnetic disk
SG118215A1 (en) Magnetic disk device
SG117485A1 (en) Magnetic disk apparatus
HK1084230A1 (en) Magnetic actuator
SG120283A1 (en) Perpendicular magnetic recording medium
TW549569U (en) Substrate cassette
TW565008U (en) Substrate cassette
SG118395A1 (en) Perpendicular magnetic recording apparatus
SG112951A1 (en) Perpendicular magnetic recording media
SG114749A1 (en) Magnetic recording medium and magnetic recording medium substrate
SG122910A1 (en) Perpendicular magnetic recording medium
SG120304A1 (en) Glass substrate for magnetic disks
GB2406098B (en) Polishing kit for magnetic disk
SG112983A1 (en) Magnetic recording media
AU2003248598A1 (en) Magnetic jewellery
SG112081A1 (en) Perpendicular recording magnetic disk apparatus
SG119362A1 (en) Magnetic recording apparatus
TW573619U (en) Improved structure for magnetic bookmarker
TWI340110B (en) Cassette for substrate
GB2404921B (en) Polishing composition for magnetic disk
SG126067A1 (en) Perpendicular magnetic disk apparatus
GB0525766D0 (en) Magnetic tape
SG110125A1 (en) Magnetic recording medium and substrate for magnetic recording medium
EP1636119A4 (en) Magnetic centerguide
GB0705021D0 (en) Substrate for magnetic disk

Legal Events

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

Effective date: 20120723