WO2008078528A1 - 保持治具、該保持治具を用いた記録媒体用ガラス基板の製造方法、記録媒体用ガラス基板及び記録媒体 - Google Patents

保持治具、該保持治具を用いた記録媒体用ガラス基板の製造方法、記録媒体用ガラス基板及び記録媒体 Download PDF

Info

Publication number
WO2008078528A1
WO2008078528A1 PCT/JP2007/073577 JP2007073577W WO2008078528A1 WO 2008078528 A1 WO2008078528 A1 WO 2008078528A1 JP 2007073577 W JP2007073577 W JP 2007073577W WO 2008078528 A1 WO2008078528 A1 WO 2008078528A1
Authority
WO
WIPO (PCT)
Prior art keywords
recording medium
glass substrate
holding jig
manufacturing
manufacturing glass
Prior art date
Application number
PCT/JP2007/073577
Other languages
English (en)
French (fr)
Inventor
Futoshi Ishida
Kenichi Sasaki
Hiroaki Sawada
Original Assignee
Konica Minolta Opto, Inc.
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 Konica Minolta Opto, Inc. filed Critical Konica Minolta Opto, Inc.
Priority to JP2008551018A priority Critical patent/JPWO2008078528A1/ja
Publication of WO2008078528A1 publication Critical patent/WO2008078528A1/ja

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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Surface Treatment Of Glass (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

　ガラス基板にひびやキズ、割れの生じない保持治具、該保持治具を用いた記録媒体用ガラス基板の製造方法、記録媒体用ガラス基板及び記録媒体を提供する。ガラス基板を支持する側部支持部材の断面形状が互いに平行な平坦部を有する保持治具を用いた記録媒体用ガラス基板の製造方法である。
PCT/JP2007/073577 2006-12-26 2007-12-06 保持治具、該保持治具を用いた記録媒体用ガラス基板の製造方法、記録媒体用ガラス基板及び記録媒体 WO2008078528A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008551018A JPWO2008078528A1 (ja) 2006-12-26 2007-12-06 保持治具、該保持治具を用いた記録媒体用ガラス基板の製造方法、記録媒体用ガラス基板及び記録媒体

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006348960 2006-12-26
JP2006-348960 2006-12-26

Publications (1)

Publication Number Publication Date
WO2008078528A1 true WO2008078528A1 (ja) 2008-07-03

Family

ID=39562322

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/073577 WO2008078528A1 (ja) 2006-12-26 2007-12-06 保持治具、該保持治具を用いた記録媒体用ガラス基板の製造方法、記録媒体用ガラス基板及び記録媒体

Country Status (2)

Country Link
JP (1) JPWO2008078528A1 (ja)
WO (1) WO2008078528A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008171502A (ja) * 2007-01-11 2008-07-24 Hoya Corp 磁気ディスク用ガラス基板の製造方法、磁気ディスクの製造方法およびガラス基板ホルダ
JP4993047B1 (ja) * 2011-03-30 2012-08-08 コニカミノルタアドバンストレイヤー株式会社 磁気情報記録媒体用ガラス基板の製造方法
WO2012131814A1 (ja) * 2011-03-30 2012-10-04 コニカミノルタオプト株式会社 磁気情報記録媒体用ガラス基板の製造方法及び磁気情報記録媒体用ガラス基板

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001266338A (ja) * 2000-03-16 2001-09-28 Ngk Insulators Ltd ハードディスクドライブ用ダミーディスク
JP2006007417A (ja) * 1999-12-28 2006-01-12 Hoya Corp 情報記録媒体用基板の製造方法及び情報記録媒体の製造方法
JP2007099279A (ja) * 2005-09-30 2007-04-19 Hoya Corp ディスク収納体およびディスク収納ケース

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01168535U (ja) * 1988-05-13 1989-11-28
JP2000109346A (ja) * 1998-10-01 2000-04-18 Daido Steel Co Ltd 情報記録媒体用ガラス基板の保持具
JP2000155939A (ja) * 1998-11-17 2000-06-06 Mitsubishi Chemicals Corp 情報記録媒体の製造方法
JP2001195728A (ja) * 2000-01-05 2001-07-19 Asahi Techno Glass Corp 磁気ディスク用ガラス基板の製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006007417A (ja) * 1999-12-28 2006-01-12 Hoya Corp 情報記録媒体用基板の製造方法及び情報記録媒体の製造方法
JP2001266338A (ja) * 2000-03-16 2001-09-28 Ngk Insulators Ltd ハードディスクドライブ用ダミーディスク
JP2007099279A (ja) * 2005-09-30 2007-04-19 Hoya Corp ディスク収納体およびディスク収納ケース

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008171502A (ja) * 2007-01-11 2008-07-24 Hoya Corp 磁気ディスク用ガラス基板の製造方法、磁気ディスクの製造方法およびガラス基板ホルダ
JP4993047B1 (ja) * 2011-03-30 2012-08-08 コニカミノルタアドバンストレイヤー株式会社 磁気情報記録媒体用ガラス基板の製造方法
WO2012131814A1 (ja) * 2011-03-30 2012-10-04 コニカミノルタオプト株式会社 磁気情報記録媒体用ガラス基板の製造方法及び磁気情報記録媒体用ガラス基板

Also Published As

Publication number Publication date
JPWO2008078528A1 (ja) 2010-04-22

Similar Documents

Publication Publication Date Title
SG10201606460SA (en) Glass for use in substrate for information recording medium, substrate for information recording medium and information recording medium, and their manufacturing method
HK1119444A1 (en) Method for the production of a thin glassy coating on substrates in order to reduce gas permeation
HK1094790A1 (en) Method for manufacturing diamond single crystal substrate, and diamond single crystal substrate
EP1970354A4 (en) NON-ALKALINE GLASS SUBSTRATE AND METHOD FOR MANUFACTURING THE SAME
IL198953A0 (en) Quartz glass component with reflector layer and method for producing the same
ZA200707112B (en) Method for laminating flat support materials on substrates
EP2299305A4 (en) Connection method, connection tool, and connection jig for optical fiber
GB0803305D0 (en) Method for laser processing on the opposite sides of thin transparent substrates
BRPI0919445A2 (pt) processo de fabricação de substratos, notadamente substratos de vidros transparentes, conjunto de substratos, e, conjunto de vidraças.
DE602008005987D1 (de) Substrate für zellkultur und herstellungsverfahren dafür
ATE499434T1 (de) Serumfreies kulturmedium für säugerzellen
EP1981085A4 (en) TFT SUBSTRATE, REFLECTIVE TFT SUBSTRATE, AND METHOD OF MANUFACTURING THE SAME
SG124417A1 (en) Method and structure for fabricating III-V nitridelayers on silicon substrates
EP2277838A4 (en) SUBSTRATE GLASSES FOR MAGNETIC RECORDING MEDIUM, SUBSTRATES FOR MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING MEDIA, AND METHODS OF MAKING THE SAME
EP2234172A4 (en) Solar cell module and method for manufacturing the same
FR2888578B1 (fr) Procede de fabrication de verre plat flotte, convertible en vitroceramique, et verre obtenu par ce procede
PL2069253T3 (pl) Buforowany światłowód i sposób poprawiania jego żywotności
TWI339641B (en) Method for attaching film for glass substrate
FR2893020B1 (fr) Procede de fabrication de verre plat, notamment de verre flotte convertible en vitroceramique
SG122928A1 (en) Method for etching doughnut-type glass substrates
TWI339864B (en) Porous substrate with smooth surface and production method thereof
WO2008078528A1 (ja) 保持治具、該保持治具を用いた記録媒体用ガラス基板の製造方法、記録媒体用ガラス基板及び記録媒体
SG122927A1 (en) Method for coating doughnut-type glass substrates
ZA200805780B (en) Enzymes for reduced immunological stress
GB2427878B (en) Method for manufacturing diamond film

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07872111

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2008551018

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07872111

Country of ref document: EP

Kind code of ref document: A1