SG11201501455YA - Magnetic-disk glass substrate, magnetic disk and method for manufacturing magnetic-disk glass substrate - Google Patents

Magnetic-disk glass substrate, magnetic disk and method for manufacturing magnetic-disk glass substrate

Info

Publication number
SG11201501455YA
SG11201501455YA SG11201501455YA SG11201501455YA SG11201501455YA SG 11201501455Y A SG11201501455Y A SG 11201501455YA SG 11201501455Y A SG11201501455Y A SG 11201501455YA SG 11201501455Y A SG11201501455Y A SG 11201501455YA SG 11201501455Y A SG11201501455Y A SG 11201501455YA
Authority
SG
Singapore
Prior art keywords
magnetic
disk
glass substrate
disk glass
manufacturing
Prior art date
Application number
SG11201501455YA
Other languages
English (en)
Inventor
Masaaki Ueda
Original Assignee
Hoya 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
Application filed by Hoya Corp filed Critical Hoya Corp
Publication of SG11201501455YA publication Critical patent/SG11201501455YA/en

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
    • G11B5/62—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B37/00—Lapping machines or devices; Accessories
    • B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
    • B24B37/07—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool
    • B24B37/08—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for double side lapping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B24B7/24—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • 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
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C19/00—Surface treatment of glass, not in the form of fibres or filaments, by mechanical means
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2204/00—Glasses, glazes or enamels with special properties
    • C03C2204/08—Glass having a rough surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Magnetic Record Carriers (AREA)
  • Surface Treatment Of Glass (AREA)
SG11201501455YA 2012-09-28 2013-06-28 Magnetic-disk glass substrate, magnetic disk and method for manufacturing magnetic-disk glass substrate SG11201501455YA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012218412 2012-09-28
PCT/JP2013/067940 WO2014050241A1 (ja) 2012-09-28 2013-06-28 磁気ディスク用ガラス基板、磁気ディスク、磁気ディスク用ガラス基板の製造方法

Publications (1)

Publication Number Publication Date
SG11201501455YA true SG11201501455YA (en) 2015-05-28

Family

ID=50387658

Family Applications (2)

Application Number Title Priority Date Filing Date
SG11201501455YA SG11201501455YA (en) 2012-09-28 2013-06-28 Magnetic-disk glass substrate, magnetic disk and method for manufacturing magnetic-disk glass substrate
SG10201706984QA SG10201706984QA (en) 2012-09-28 2013-06-28 Magnetic-disk glass substrate, magnetic disk and method for manufacturing magnetic-disk glass substrate

Family Applications After (1)

Application Number Title Priority Date Filing Date
SG10201706984QA SG10201706984QA (en) 2012-09-28 2013-06-28 Magnetic-disk glass substrate, magnetic disk and method for manufacturing magnetic-disk glass substrate

Country Status (6)

Country Link
US (2) US9697860B2 (OSRAM)
JP (2) JP5592037B1 (OSRAM)
CN (2) CN107256712B (OSRAM)
MY (1) MY169200A (OSRAM)
SG (2) SG11201501455YA (OSRAM)
WO (1) WO2014050241A1 (OSRAM)

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CN115307986B (zh) * 2022-02-22 2025-06-06 陕西北方动力有限责任公司 一种磷化产品含油量的检测方法

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CN107615381B (zh) * 2015-09-30 2019-09-13 Hoya株式会社 磁盘用玻璃基板、磁盘、玻璃基板中间体和磁盘用玻璃基板的制造方法

Also Published As

Publication number Publication date
JP5592037B1 (ja) 2014-09-17
US20150255103A1 (en) 2015-09-10
JP6215770B2 (ja) 2017-10-18
CN107256712A (zh) 2017-10-17
CN104584126B8 (zh) 2017-08-08
US10580448B2 (en) 2020-03-03
JPWO2014050241A1 (ja) 2016-08-22
CN104584126A (zh) 2015-04-29
CN104584126B (zh) 2017-06-23
MY169200A (en) 2019-02-26
JP2014179160A (ja) 2014-09-25
CN107256712B (zh) 2020-04-14
US9697860B2 (en) 2017-07-04
SG10201706984QA (en) 2017-10-30
US20170263278A1 (en) 2017-09-14
WO2014050241A1 (ja) 2014-04-03

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