SG77697A1 - Substrate for information recording medium and method of producing it and information recording medium comprising the substrate - Google Patents

Substrate for information recording medium and method of producing it and information recording medium comprising the substrate

Info

Publication number
SG77697A1
SG77697A1 SG1999003189A SG1999003189A SG77697A1 SG 77697 A1 SG77697 A1 SG 77697A1 SG 1999003189 A SG1999003189 A SG 1999003189A SG 1999003189 A SG1999003189 A SG 1999003189A SG 77697 A1 SG77697 A1 SG 77697A1
Authority
SG
Singapore
Prior art keywords
substrate
recording medium
information recording
producing
information
Prior art date
Application number
SG1999003189A
Other languages
English (en)
Inventor
Kazuaki Hashimoto
Takashi Watanbe
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 SG77697A1 publication Critical patent/SG77697A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
    • C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Surface Treatment Of Glass (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
SG1999003189A 1998-06-30 1998-06-30 Substrate for information recording medium and method of producing it and information recording medium comprising the substrate SG77697A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19977398 1998-06-30

Publications (1)

Publication Number Publication Date
SG77697A1 true SG77697A1 (en) 2001-01-16

Family

ID=16413384

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1999003189A SG77697A1 (en) 1998-06-30 1998-06-30 Substrate for information recording medium and method of producing it and information recording medium comprising the substrate

Country Status (4)

Country Link
US (1) US6312841B1 (fr)
EP (1) EP0968974A1 (fr)
MY (1) MY117820A (fr)
SG (1) SG77697A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4428835B2 (ja) * 2000-08-09 2010-03-10 昭和電工株式会社 磁気記録媒体及びその製造方法
US7566673B2 (en) * 2003-10-31 2009-07-28 Konica Minolta Opto, Inc. Glass substrate for an information recording medium and information recording medium employing it
US20070254562A1 (en) * 2004-08-30 2007-11-01 Showa Denko K.K. Magnetic Disk Substrate and Production Method of Magnetic Disk
JP5046103B2 (ja) * 2007-09-06 2012-10-10 富士電機株式会社 ガラス基板の製造方法
KR20220106900A (ko) 2021-01-22 2022-08-01 삼성디스플레이 주식회사 기판 적재용 카세트 및 이를 이용한 기판 처리 방법

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1594856A (fr) * 1967-12-22 1970-06-08
US3583858A (en) 1968-04-10 1971-06-08 Corning Glass Works Strengthening glass-ceramic articles
JPS6059179B2 (ja) 1981-02-02 1985-12-24 セイコーエプソン株式会社 時計用カバ−ガラス
JPS5849636A (ja) 1981-09-21 1983-03-23 Seiko Epson Corp 紫外線カツトフイルタ−
US5691256A (en) * 1995-12-28 1997-11-25 Yamamura Glass Co., Ltd. Glass composition for magnetic disk substrates and magnetic disk substrate
US6191058B1 (en) * 1996-02-02 2001-02-20 Kabushiki Kaisha Ohara Glass-ceramic substrate for a magnetic disk
FR2744440B1 (fr) 1996-02-07 1998-03-20 Saint Gobain Vitrage Procede de traitement de substrats en verre
US6187441B1 (en) * 1996-12-26 2001-02-13 Hoya Corporation Glass substrate for information recording medium and magnetic recording medium having the substrate
CN1124995C (zh) * 1997-07-30 2003-10-22 保谷株式会社 信息记录媒体用玻璃基板的制造方法
JPH11180738A (ja) * 1997-12-19 1999-07-06 Hoya Corp 情報記録媒体用ガラス基板の製造方法及び情報記録媒体
US6174824B1 (en) * 1999-03-04 2001-01-16 International Business Machines Corporation Post-processing a completed semiconductor device

Also Published As

Publication number Publication date
US6312841B1 (en) 2001-11-06
EP0968974A1 (fr) 2000-01-05
MY117820A (en) 2004-08-30

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