JPH0330209B2 - - Google Patents

Info

Publication number
JPH0330209B2
JPH0330209B2 JP59169409A JP16940984A JPH0330209B2 JP H0330209 B2 JPH0330209 B2 JP H0330209B2 JP 59169409 A JP59169409 A JP 59169409A JP 16940984 A JP16940984 A JP 16940984A JP H0330209 B2 JPH0330209 B2 JP H0330209B2
Authority
JP
Japan
Prior art keywords
substrate
less
film
glass
polishing
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
JP59169409A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6148123A (ja
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 filed Critical
Priority to JP59169409A priority Critical patent/JPS6148123A/ja
Priority to US06/759,366 priority patent/US4690846A/en
Publication of JPS6148123A publication Critical patent/JPS6148123A/ja
Publication of JPH0330209B2 publication Critical patent/JPH0330209B2/ja
Granted legal-status Critical Current

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
    • G11B5/62—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
    • G11B5/62—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
    • G11B5/73913—Composites or coated substrates
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31—Surface property or characteristic of web, sheet or block

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
JP59169409A 1984-08-15 1984-08-15 記録デイスク用基板の製造方法 Granted JPS6148123A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP59169409A JPS6148123A (ja) 1984-08-15 1984-08-15 記録デイスク用基板の製造方法
US06/759,366 US4690846A (en) 1984-08-15 1985-07-26 Recording disk substrate members and process for producing same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59169409A JPS6148123A (ja) 1984-08-15 1984-08-15 記録デイスク用基板の製造方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP18894287A Division JPS6361412A (ja) 1987-07-30 1987-07-30 記録ディスク用基板

Publications (2)

Publication Number Publication Date
JPS6148123A JPS6148123A (ja) 1986-03-08
JPH0330209B2 true JPH0330209B2 (en]) 1991-04-26

Family

ID=15886060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59169409A Granted JPS6148123A (ja) 1984-08-15 1984-08-15 記録デイスク用基板の製造方法

Country Status (2)

Country Link
US (1) US4690846A (en])
JP (1) JPS6148123A (en])

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60138730A (ja) * 1983-12-27 1985-07-23 Kyocera Corp 磁気デイスク用基板
EP0197361B1 (de) * 1985-03-29 1989-07-19 Siemens Aktiengesellschaft Senkrecht zu magnetisierendes Aufzeichnungsmedium und Verfahren zu dessen Herstellung
JPS61281880A (ja) * 1985-06-07 1986-12-12 Matsushita Electric Ind Co Ltd 絶縁耐摩耗被覆層を有する物品
US4777074A (en) * 1985-08-12 1988-10-11 Sumitomo Special Metals Co., Ltd. Grooved magnetic substrates and method for producing the same
JPS6288137A (ja) * 1985-10-14 1987-04-22 Sumitomo Special Metals Co Ltd 磁気ディスク用基板の製造方法
JPS62120629A (ja) * 1985-11-20 1987-06-01 Sumitomo Special Metals Co Ltd 磁気ディスク及びその製造方法
DE3789932T2 (de) * 1986-10-09 1995-02-09 Asahi Glass Co Ltd Glassubstrat für eine Magnetplatte und Verfahren zu seiner Herstellung.
US5165981A (en) * 1987-03-20 1992-11-24 Sumitomo Electric Industries, Ltd. Ceramic substrate and preparation of the same
US4971932B1 (en) * 1989-02-24 1995-01-03 Corning Glass Works Magnetic memory storage devices
JP2816472B2 (ja) * 1989-04-28 1998-10-27 ティーディーケイ株式会社 磁気記録媒体
JPH05331304A (ja) * 1992-06-04 1993-12-14 Nikon Corp コーティング組成物およびそれで被覆されたレンズ
JPH0677402A (ja) * 1992-07-02 1994-03-18 Natl Semiconductor Corp <Ns> 半導体デバイス用誘電体構造及びその製造方法
JP2736869B2 (ja) * 1994-11-16 1998-04-02 株式会社オハラ 磁気ディスク基板の製造方法
KR20010022455A (ko) * 1997-07-31 2001-03-15 알프레드 엘. 미첼슨 표면 결함이 없는 메모리 디스크 기판
WO2000048172A2 (en) 1999-02-12 2000-08-17 General Electric Company Data storage media
US7179551B2 (en) 1999-02-12 2007-02-20 General Electric Company Poly(arylene ether) data storage media
JP2001344732A (ja) * 2000-05-29 2001-12-14 Fujitsu Ltd 磁気記録媒体用基板及びその製造方法、並びに磁気記録媒体の評価方法
US20130108890A1 (en) * 2011-10-28 2013-05-02 Solar Applied Materials Technology Corp Target, An Underlayer Material For Co-Based Or Fe-Based Magnetic Recording Media, And Magnetic Recording Media

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3198657A (en) * 1964-09-17 1965-08-03 Ibm Process for spin coating objects
JPS484308U (en]) * 1971-06-15 1973-01-18
DE2255028A1 (de) * 1972-11-10 1974-06-12 Basf Ag Verfahren zur herstellung von magnetischen aufzeichnungsplatten
US4046932A (en) * 1973-04-17 1977-09-06 Basf Aktiengesellschaft Magnetic recording discs
JPS55125976A (en) * 1979-03-15 1980-09-29 Nec Corp Method for finishing base plate to mirror finished surface
US4254189A (en) * 1979-07-05 1981-03-03 Memorex Corporation Disc having substrate, intermediate layer and magnetically sensitive layer wherein intermediate layer has melting point less than annealing temperature of substrate but higher than processing temperature of magnetically sensitive layer
JPS6025398B2 (ja) * 1980-12-27 1985-06-18 セントラル硝子株式会社 グレ−ズドセラミック基板
JPS57172530A (en) * 1981-04-15 1982-10-23 Ulvac Corp Vertical magnetic recording body and its manufacture
US4528212A (en) * 1982-07-22 1985-07-09 International Business Machines Corporation Coated ceramic substrates for mounting integrated circuits
JPS59165243A (ja) * 1983-03-09 1984-09-18 Hitachi Ltd 磁気デイスク
JPS60138730A (ja) * 1983-12-27 1985-07-23 Kyocera Corp 磁気デイスク用基板

Also Published As

Publication number Publication date
JPS6148123A (ja) 1986-03-08
US4690846A (en) 1987-09-01

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