MY184175A - Method for Manufacturing Glass Substrate as a Material of Glass Substrate for Magnetic Disk, Method for Manufacturing Glass Substrate for Magnetic Disk and Method for Manufacturing Magnetic Disk - Google Patents

Method for Manufacturing Glass Substrate as a Material of Glass Substrate for Magnetic Disk, Method for Manufacturing Glass Substrate for Magnetic Disk and Method for Manufacturing Magnetic Disk

Info

Publication number
MY184175A
MY184175A MYPI2015701207A MYPI2015701207A MY184175A MY 184175 A MY184175 A MY 184175A MY PI2015701207 A MYPI2015701207 A MY PI2015701207A MY PI2015701207 A MYPI2015701207 A MY PI2015701207A MY 184175 A MY184175 A MY 184175A
Authority
MY
Malaysia
Prior art keywords
glass substrate
grinding
magnetic disk
manufacturing
stage
Prior art date
Application number
MYPI2015701207A
Inventor
Fukada Junpei
Yoshikawa Hironori
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 MY184175A publication Critical patent/MY184175A/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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Surface Treatment Of Glass (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Magnetic Record Carriers (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

The present invention provides a method for manufacturing a magnetic-disk glass substrate that can reduce a period of time during which no grinding is performed in grinding using fixed abrasive particles, enables the roughness of a processed surface to be suppressed to a low level without reducing a processing speed, and can manufacture a high-quality glass substrate (10). The present invention includes grinding processing for grinding a main surface of a glass substrate (10) using a lubricant and a surface plate having a grinding surface provided with fixed abrasive particles including diamond particles (5). The main surface of the glass substrate (10) is a mirror surface. The grinding processing has a first stage in which the surface of the glass substrate (10) is roughened with a higher load than a load applied in grinding and a second stage in which the surface of the glass substrate (10) is ground with a lower load than a load applied in the first stage. The first stage and the second stage are performed using the same device. FIG. 3
MYPI2015701207A 2012-10-31 2013-10-31 Method for Manufacturing Glass Substrate as a Material of Glass Substrate for Magnetic Disk, Method for Manufacturing Glass Substrate for Magnetic Disk and Method for Manufacturing Magnetic Disk MY184175A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012241156 2012-10-31
PCT/JP2013/079646 WO2014069609A1 (en) 2012-10-31 2013-10-31 Method for manufacturing glass substrate for magnetic disk and method for manufacturing magnetic disk

Publications (1)

Publication Number Publication Date
MY184175A true MY184175A (en) 2021-03-24

Family

ID=50627505

Family Applications (2)

Application Number Title Priority Date Filing Date
MYPI2021000497A MY202578A (en) 2012-10-31 2013-10-31 Method for manufacturing glass substrate for use in manufacture of magnetic-disk glass substrate and method for manufacturing magnetic-disk glass substrate
MYPI2015701207A MY184175A (en) 2012-10-31 2013-10-31 Method for Manufacturing Glass Substrate as a Material of Glass Substrate for Magnetic Disk, Method for Manufacturing Glass Substrate for Magnetic Disk and Method for Manufacturing Magnetic Disk

Family Applications Before (1)

Application Number Title Priority Date Filing Date
MYPI2021000497A MY202578A (en) 2012-10-31 2013-10-31 Method for manufacturing glass substrate for use in manufacture of magnetic-disk glass substrate and method for manufacturing magnetic-disk glass substrate

Country Status (5)

Country Link
JP (4) JP6388233B2 (en)
CN (2) CN104641415B (en)
MY (2) MY202578A (en)
SG (1) SG11201503250RA (en)
WO (1) WO2014069609A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY200214A (en) 2017-09-29 2023-12-14 Hoya Corp Glass spacer and hard disk drive apparatus
CN118435279A (en) * 2022-01-11 2024-08-02 古河电气工业株式会社 Magnetic disk substrate and magnetic disk using the same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009072832A (en) * 2007-09-18 2009-04-09 Bando Chem Ind Ltd Polishing sheet and method for producing the same
JP5005645B2 (en) * 2007-09-27 2012-08-22 Ｈｏｙａ株式会社 Manufacturing method of glass substrate for magnetic disk and manufacturing method of magnetic disk
JP5297321B2 (en) * 2008-10-07 2013-09-25 Ｈｏｙａ株式会社 Manufacturing method of glass substrate for magnetic disk
JP5569000B2 (en) * 2010-01-20 2014-08-13 大日本印刷株式会社 Method for generating glass substrate for photomask
JP5585269B2 (en) * 2010-07-22 2014-09-10 旭硝子株式会社 Method for manufacturing glass substrate for magnetic recording medium
JP5690540B2 (en) * 2010-09-30 2015-03-25 Hoya株式会社 Manufacturing method of glass substrate for information recording medium
JPWO2012090655A1 (en) * 2010-12-28 2014-06-05 Hoya株式会社 Manufacturing method of glass substrate
JP2013244570A (en) 2012-05-28 2013-12-09 Asahi Glass Co Ltd Polishing device and polishing method

Also Published As

Publication number Publication date
CN104641415A (en) 2015-05-20
CN104641415B (en) 2018-06-01
CN108564970B (en) 2020-11-06
SG11201503250RA (en) 2015-06-29
JPWO2014069609A1 (en) 2016-09-08
JP6642864B2 (en) 2020-02-12
JP2018200743A (en) 2018-12-20
JP6388233B2 (en) 2018-09-12
JP6960970B2 (en) 2021-11-05
JP7270682B2 (en) 2023-05-10
MY202578A (en) 2024-05-09
WO2014069609A1 (en) 2014-05-08
JP2020023047A (en) 2020-02-13
CN108564970A (en) 2018-09-21
JP2021167062A (en) 2021-10-21

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