SG153742A1 - Manufacturing method of glass substrate for magnetic disc - Google Patents

Manufacturing method of glass substrate for magnetic disc

Info

Publication number
SG153742A1
SG153742A1 SG200808835-3A SG2008088353A SG153742A1 SG 153742 A1 SG153742 A1 SG 153742A1 SG 2008088353 A SG2008088353 A SG 2008088353A SG 153742 A1 SG153742 A1 SG 153742A1
Authority
SG
Singapore
Prior art keywords
glass substrate
abrasive pad
polishing
correction
manufacturing
Prior art date
Application number
SG200808835-3A
Inventor
Masahiro Katagiri
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 SG153742A1 publication Critical patent/SG153742A1/en

Links

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

A manufacturing method of a glass substrate for a magnetic disc according to the present invention including: a polishing step for supplying a polishing liquid including a loose grain between a glass substrate 110 and an abrasive pad 200 having a nap layer for polishing a main surface of the glass substrate 110 and for relatively moving the glass substrate 110 and the abrasive pad 200 to polish the glass substrate 110; and a correction step for causing a correction member having a correction surface, to which a polishing grain is fixed, to be in contact with a surface of the abrasive pad 200 which polished the glass substrate 110 and for relatively moving the correction member and the abrasive pad 200 to correct the abrasive pad 200, wherein moving directions of the glass substrate 110 and the correction member to the abrasive pad 200 differ in the polishing step and in the correction step. FIG.6
SG200808835-3A 2007-12-26 2008-11-28 Manufacturing method of glass substrate for magnetic disc SG153742A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007333469A JP2009154232A (en) 2007-12-26 2007-12-26 Method of manufacturing glass substrate for magnetic disk

Publications (1)

Publication Number Publication Date
SG153742A1 true SG153742A1 (en) 2009-07-29

Family

ID=40901941

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200808835-3A SG153742A1 (en) 2007-12-26 2008-11-28 Manufacturing method of glass substrate for magnetic disc

Country Status (2)

Country Link
JP (1) JP2009154232A (en)
SG (1) SG153742A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011156646A (en) * 2010-02-03 2011-08-18 Ohara Inc Glass substrate manufacturing method
WO2012090378A1 (en) * 2010-12-27 2012-07-05 コニカミノルタオプト株式会社 Method for manufacturing glass substrate for magnetic information-recording medium
MY165019A (en) * 2011-03-31 2018-02-28 Hoya Corp Method of manufacturing a glass substrate for a magnetic disk and method of manufacturing a magnetic disk
JP6034583B2 (en) * 2012-03-30 2016-11-30 Hoya株式会社 Method for manufacturing glass substrate for information recording medium, and glass substrate for information recording medium
CN107077865B (en) * 2014-11-12 2018-10-02 Hoya株式会社 The manufacturing method of substrate for magnetic disc and the manufacturing method of disk

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000153458A (en) * 1998-11-17 2000-06-06 Speedfam-Ipec Co Ltd Flush mounting method and device of grinding wheel surface plate in double-sided work machine
JP2004098264A (en) * 2002-09-12 2004-04-02 Shin Etsu Handotai Co Ltd Method for dressing polishing cloth and method for polishing workpiece
JP4659338B2 (en) * 2003-02-12 2011-03-30 Ｈｏｙａ株式会社 Manufacturing method of glass substrate for information recording medium and polishing pad used therefor
JP4199645B2 (en) * 2003-11-07 2008-12-17 Ｈｏｙａ株式会社 Method for manufacturing glass substrate for magnetic disk and method for manufacturing magnetic disk

Also Published As

Publication number Publication date
JP2009154232A (en) 2009-07-16

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