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SG10201607037VA - Glass substrate for magnetic disk and magnetic disk - Google Patents

Glass substrate for magnetic disk and magnetic disk

Info

Publication number
SG10201607037VA
SG10201607037VA SG10201607037VA SG10201607037VA SG10201607037VA SG 10201607037V A SG10201607037V A SG 10201607037VA SG 10201607037V A SG10201607037V A SG 10201607037VA SG 10201607037V A SG10201607037V A SG 10201607037VA SG 10201607037V A SG10201607037V A SG 10201607037VA
Authority
SG
Singapore
Prior art keywords
magnetic disk
glass substrate
disk
magnetic
glass
Prior art date
Application number
SG10201607037VA
Inventor
Ito Masabumi
takano Shigeki
Yoshida Kara
Original Assignee
Asahi Glass 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 Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Publication of SG10201607037VA publication Critical patent/SG10201607037VA/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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
SG10201607037VA 2015-11-26 2016-08-24 Glass substrate for magnetic disk and magnetic disk SG10201607037VA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015230942 2015-11-26
JP2016081536A JP5983897B1 (en) 2015-11-26 2016-04-14 Glass substrate for magnetic disk and magnetic disk

Publications (1)

Publication Number Publication Date
SG10201607037VA true SG10201607037VA (en) 2017-06-29

Family

ID=56843257

Family Applications (1)

Application Number Title Priority Date Filing Date
SG10201607037VA SG10201607037VA (en) 2015-11-26 2016-08-24 Glass substrate for magnetic disk and magnetic disk

Country Status (3)

Country Link
JP (1) JP5983897B1 (en)
SG (1) SG10201607037VA (en)
WO (1) WO2017090260A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11884582B2 (en) 2019-07-31 2024-01-30 Hoya Corporation Method for manufacturing annular glass plate, method for manufacturing glass substrate for magnetic disk, and method for manufacturing magnetic disk

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09137282A (en) * 1995-09-11 1997-05-27 Nippon Steel Corp Chromium-resistant resin chromate treated metal plate
JP4545714B2 (en) * 2005-07-08 2010-09-15 昭和電工株式会社 Magnetic recording medium and magnetic recording / reproducing apparatus
JP5528907B2 (en) * 2010-05-31 2014-06-25 Ｈｏｙａ株式会社 Glass substrate for heat-assisted recording medium
MY165594A (en) * 2013-03-01 2018-04-16 Hoya Corp Glass substrate for magnetic disk and magnetic disk
JP5639215B2 (en) * 2013-03-25 2014-12-10 Hoya株式会社 Glass substrate for magnetic disk, method for manufacturing glass substrate for magnetic disk, and method for manufacturing magnetic disk
JP5915718B1 (en) * 2014-11-07 2016-05-11 旭硝子株式会社 Glass substrate for magnetic disk and magnetic disk

Also Published As

Publication number Publication date
WO2017090260A1 (en) 2017-06-01
JP2017107630A (en) 2017-06-15
JP5983897B1 (en) 2016-09-06

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