JPH0372022B2 - - Google Patents

Info

Publication number
JPH0372022B2
JPH0372022B2 JP59164412A JP16441284A JPH0372022B2 JP H0372022 B2 JPH0372022 B2 JP H0372022B2 JP 59164412 A JP59164412 A JP 59164412A JP 16441284 A JP16441284 A JP 16441284A JP H0372022 B2 JPH0372022 B2 JP H0372022B2
Authority
JP
Japan
Prior art keywords
glass
weight
sio
substrate
heat resistance
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
Application number
JP59164412A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6144732A (ja
Inventor
Masaru Shinho
Kyoshi Fukuda
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co Ltd
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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP59164412A priority Critical patent/JPS6144732A/ja
Publication of JPS6144732A publication Critical patent/JPS6144732A/ja
Publication of JPH0372022B2 publication Critical patent/JPH0372022B2/ja
Granted legal-status Critical Current

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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
    • C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
  • Formation Of Insulating Films (AREA)
JP59164412A 1984-08-06 1984-08-06 基板用ガラス Granted JPS6144732A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59164412A JPS6144732A (ja) 1984-08-06 1984-08-06 基板用ガラス

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59164412A JPS6144732A (ja) 1984-08-06 1984-08-06 基板用ガラス

Publications (2)

Publication Number Publication Date
JPS6144732A JPS6144732A (ja) 1986-03-04
JPH0372022B2 true JPH0372022B2 (cs) 1991-11-15

Family

ID=15792647

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59164412A Granted JPS6144732A (ja) 1984-08-06 1984-08-06 基板用ガラス

Country Status (1)

Country Link
JP (1) JPS6144732A (cs)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3950203B2 (ja) * 1996-09-04 2007-07-25 Ｈｏｙａ株式会社 高い比弾性率を有するガラス
JP3989988B2 (ja) * 1996-09-04 2007-10-10 Ｈｏｙａ株式会社 情報記録媒体用基板及び磁気ディスク、並びにその製造方法
KR102817508B1 (ko) * 2015-04-03 2025-06-10 니폰 덴키 가라스 가부시키가이샤 유리
MY208742A (en) * 2019-12-13 2025-05-27 Hoya Corp Glass for magnetic recording medium substrate or for glass spacer to be used in magnetic recording/reproducing device, magnetic recording medium substrate, magnetic recording medium, glass spacer to be used in magnetic recording/reproducing device, and magnetic recording/reproducing device

Also Published As

Publication number Publication date
JPS6144732A (ja) 1986-03-04

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term