JP4127974B2 - 基板ブランク、基板および情報記録媒体それぞれの製造方法 - Google Patents

基板ブランク、基板および情報記録媒体それぞれの製造方法 Download PDF

Info

Publication number
JP4127974B2
JP4127974B2 JP2001020379A JP2001020379A JP4127974B2 JP 4127974 B2 JP4127974 B2 JP 4127974B2 JP 2001020379 A JP2001020379 A JP 2001020379A JP 2001020379 A JP2001020379 A JP 2001020379A JP 4127974 B2 JP4127974 B2 JP 4127974B2
Authority
JP
Japan
Prior art keywords
substrate
blank
information recording
recording medium
mold
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
JP2001020379A
Other languages
English (en)
Japanese (ja)
Other versions
JP2002226219A5 (enExample
JP2002226219A (ja
Inventor
明 村上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoya Corp
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
Priority to JP2001020379A priority Critical patent/JP4127974B2/ja
Priority to US10/058,236 priority patent/US7305854B2/en
Publication of JP2002226219A publication Critical patent/JP2002226219A/ja
Publication of JP2002226219A5 publication Critical patent/JP2002226219A5/ja
Priority to US11/907,559 priority patent/US7845192B2/en
Application granted granted Critical
Publication of JP4127974B2 publication Critical patent/JP4127974B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/06—Construction of plunger or mould
    • C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
    • C03B11/088—Flat discs
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/40—Product characteristics
    • C03B2215/44—Flat, parallel-faced disc or plate products
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
JP2001020379A 2001-01-29 2001-01-29 基板ブランク、基板および情報記録媒体それぞれの製造方法 Expired - Lifetime JP4127974B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2001020379A JP4127974B2 (ja) 2001-01-29 2001-01-29 基板ブランク、基板および情報記録媒体それぞれの製造方法
US10/058,236 US7305854B2 (en) 2001-01-29 2002-01-29 Methods for producing substrate blank
US11/907,559 US7845192B2 (en) 2001-01-29 2007-10-15 Methods for producing substrate blank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001020379A JP4127974B2 (ja) 2001-01-29 2001-01-29 基板ブランク、基板および情報記録媒体それぞれの製造方法

Publications (3)

Publication Number Publication Date
JP2002226219A JP2002226219A (ja) 2002-08-14
JP2002226219A5 JP2002226219A5 (enExample) 2005-09-29
JP4127974B2 true JP4127974B2 (ja) 2008-07-30

Family

ID=18886095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001020379A Expired - Lifetime JP4127974B2 (ja) 2001-01-29 2001-01-29 基板ブランク、基板および情報記録媒体それぞれの製造方法

Country Status (2)

Country Link
US (2) US7305854B2 (enExample)
JP (1) JP4127974B2 (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4127974B2 (ja) 2001-01-29 2008-07-30 Ｈｏｙａ株式会社 基板ブランク、基板および情報記録媒体それぞれの製造方法
US20030134734A1 (en) * 2001-08-08 2003-07-17 Shiro Nishimoto Press molding method for glass and manufacturing method for glass substrate using this method
JP5085383B2 (ja) * 2008-03-19 2012-11-28 Ｈｏｙａ株式会社 情報記録媒体用基板ガラスブランク、情報記録媒体用基板、情報記録媒体それぞれの製造方法
JP5033768B2 (ja) * 2008-10-31 2012-09-26 株式会社オハラ 薄板状ガラス成形体の製造方法及びディスク状磁気記録媒体の製造方法
JP5306855B2 (ja) * 2009-02-26 2013-10-02 Ｈｏｙａ株式会社 情報記録媒体用基板の製造方法、および、情報記録媒体の製造方法
JP5449938B2 (ja) * 2009-09-16 2014-03-19 Ｈｏｙａ株式会社 ガラスブランク、ガラスブランク製造方法、情報記録媒体用基板製造方法および情報記録媒体製造方法
CN106297833B (zh) 2009-12-29 2019-03-08 Hoya株式会社 磁盘用玻璃基板的制造方法以及磁盘用玻璃基板
MY163806A (en) * 2010-03-31 2017-10-31 Hoya Corp Manufacturing method of glass substrate for magnetic disk, manufacturing method of glass blank, glass substrate for magnetic disk, and glass blank
JP5565265B2 (ja) * 2010-10-22 2014-08-06 コニカミノルタ株式会社 ガラス成形体の製造方法
US8806895B2 (en) * 2010-12-09 2014-08-19 Hoya Corporation Manufacturing method for a glass substrate for magnetic disk
US8931308B2 (en) * 2011-02-10 2015-01-13 Hoya Corporation Method of producing glass blank for substrate of information recording medium, substrate for information recording medium, and information recording medium; and manufacturing apparatus for glass blank for substrate of information recording medium
US20150225275A1 (en) * 2012-09-25 2015-08-13 Konica Minolta, Inc. Glass component fabrication method
US20240059599A1 (en) * 2022-08-22 2024-02-22 AAC Optics (Chongqing) Co., Ltd. Mold for molding glass product
US12234175B1 (en) * 2024-04-16 2025-02-25 Corning Incorporated Glass parts and gob-pressing methods for making such
US12441645B1 (en) 2024-04-16 2025-10-14 Corning Incorporated Glass parts and gob-pressing methods for making such

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60145919A (ja) * 1983-12-29 1985-08-01 Ohara Inc 高精度ガラス成形品のプレス成形方法
JPS63265833A (ja) * 1987-04-22 1988-11-02 Matsushita Electric Ind Co Ltd ガラスレンズの成形方法
JPH01119536A (ja) * 1987-11-04 1989-05-11 Canon Inc プリフォーム形成方法
JPH01176240A (ja) * 1987-12-29 1989-07-12 Matsushita Electric Ind Co Ltd 光学素子成形型
US4836840A (en) * 1988-09-26 1989-06-06 Hoya Corporation Press-molding device for lenses
JPH04317427A (ja) * 1991-04-17 1992-11-09 Matsushita Electric Ind Co Ltd 球面成形レンズ
JP2975168B2 (ja) * 1991-04-26 1999-11-10 オリンパス光学工業株式会社 ガラスレンズの離型方法
JP3387635B2 (ja) * 1994-07-28 2003-03-17 キヤノン株式会社 光学素子の製造方法
KR100193374B1 (ko) * 1995-01-30 1999-06-15 오까노 사다오 유리성형품을 프레스 성형하는 방법 및 그 성형장치
US6442975B1 (en) * 1996-12-26 2002-09-03 Hoya Corporation Method of manufacturing thin-plate glass article, method of manufacturing glass substrate for information recording medium, and method of manufacturing magnetic recording medium
JP3286956B2 (ja) * 1996-12-26 2002-05-27 ホーヤ株式会社 肉薄板状ガラスの製造方法及び情報記録媒体用ガラス基板の製造方法並びに磁気記録媒体
JP3714501B2 (ja) 1997-01-08 2005-11-09 Ｈｏｙａ株式会社 肉薄板状ガラス及びその製造方法
JPH10212125A (ja) * 1997-01-29 1998-08-11 Sony Corp ガラス製プリフォーム材の製造方法及びその装置
JP4076251B2 (ja) * 1997-12-08 2008-04-16 株式会社オハラ 光学素子成型用ガラスゴブ、その成形装置、その成形方法及びガラスゴブを用いた光学素子形成方法
JP2000053431A (ja) 1998-08-06 2000-02-22 Ngk Insulators Ltd ガラス基板中間体とそのプレス成形用金型ならびに内外径加工装置
JP3756041B2 (ja) * 1999-05-27 2006-03-15 Ｈｏｙａ株式会社 多層プリント配線板の製造方法
JP4127974B2 (ja) 2001-01-29 2008-07-30 Ｈｏｙａ株式会社 基板ブランク、基板および情報記録媒体それぞれの製造方法
MY129886A (en) * 2001-05-09 2007-05-31 Matsushita Electric Industrial Co Ltd Molding process of disk with shaft shaped portion
US6567223B2 (en) * 2001-06-01 2003-05-20 Eastman Kodak Company Molded lens element having a two-dimensional reference molded therein
US20030134734A1 (en) * 2001-08-08 2003-07-17 Shiro Nishimoto Press molding method for glass and manufacturing method for glass substrate using this method
JP4222778B2 (ja) 2001-12-14 2009-02-12 Ｈｏｙａ株式会社 ガラス成形体の製造方法および光学素子の製造方法
US8091387B2 (en) 2003-03-19 2012-01-10 Hoya Corporation Method of manufacturing glass articles, method of manufacturing glass gobs, and method of manufacturing optical elements

Also Published As

Publication number Publication date
US7305854B2 (en) 2007-12-11
US20080041108A1 (en) 2008-02-21
US7845192B2 (en) 2010-12-07
JP2002226219A (ja) 2002-08-14
US20020139145A1 (en) 2002-10-03

Similar Documents

Publication Publication Date Title
US7845192B2 (en) Methods for producing substrate blank
JP4380379B2 (ja) 情報記録媒体用ガラス基板の製造方法
JPWO2000066504A1 (ja) ガラス基板成形用金型、ガラス基板成形用ガラス素材、ガラス基板の製造方法及び磁気ディスク用ガラス基板
JP4200422B2 (ja) ガラスブランク、情報記録媒体用基板および情報記録媒体それぞれの製造方法
JP2002226219A5 (enExample)
JP2577055B2 (ja) ガラス成形型
JP4482246B2 (ja) ガラス成形体の製造方法、基板の製造方法、及び情報記録媒体の製造方法
JP4133309B2 (ja) ガラスブランク、並びに情報記録媒体用基板及び情報記録媒体の製造方法
CN102625782A (zh) 玻璃坯料、玻璃坯料制造方法、信息记录介质用基板制造方法以及信息记录介质制造方法
JP4249477B2 (ja) ガラスブランク及びその製造方法、情報記録媒体用基板の製造方法、情報記録媒体の製造方法
JP4926898B2 (ja) ディスク状ガラス、情報記録媒体用基板および情報記録媒体の製造方法
JP5485665B2 (ja) ガラスブランクの製造方法、ガラスプレス用上型、プレス成型装置、情報記録媒体用基板の製造方法および情報記録媒体の製造方法
JPH11228150A (ja) ガラス基板の作製方法
JP4052627B2 (ja) ガラス母材の製造方法、ディスク状ガラスの製造方法および情報記録媒体の製造方法
JP4227382B2 (ja) ガラスブランク、情報記録媒体用基板、情報記録媒体それぞれの製造方法
JP4186443B2 (ja) 中央孔を備えたハードディスク用ガラス基板の製造方法
JP4256146B2 (ja) ガラスブランク、情報記録媒体用基板、情報記録媒体それぞれの製造方法
JP3681103B2 (ja) ガラス基板の製造方法およびガラス基板の製造装置
JP4133091B2 (ja) ガラスブランク、情報記録媒体用基板および情報記録媒体それぞれの製造方法
JP5027188B2 (ja) ガラスブランクの製造方法、情報記録媒体用基板の製造方法、および、情報記録媒体の製造方法
US20240371404A1 (en) Substrate for magnetic disk, manufacturing method thereof, and magnetic disk
JPH11189423A (ja) ガラス基板の作製方法
JP4134925B2 (ja) 情報記録媒体用ガラス基板の製造方法
JPH11217226A (ja) ガラス基板の作製方法
JP5479536B2 (ja) ガラスブランクの製造方法、ガラスプレス用の下型、プレス成形装置、情報記録媒体用基板の製造方法、および、情報記録媒体の製造方法

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050425

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050425

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20071116

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080116

A975 Report on accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A971005

Effective date: 20080121

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080123

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080324

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20080512

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20080513

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110523

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

Ref document number: 4127974

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120523

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130523

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140523

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term