JPH01239036A - 高強度ガラス - Google Patents
高強度ガラスInfo
- Publication number
- JPH01239036A JPH01239036A JP6297088A JP6297088A JPH01239036A JP H01239036 A JPH01239036 A JP H01239036A JP 6297088 A JP6297088 A JP 6297088A JP 6297088 A JP6297088 A JP 6297088A JP H01239036 A JPH01239036 A JP H01239036A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- strength
- substrate
- less
- chemically strengthened
- 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.)
- Granted
Links
- 239000011521 glass Substances 0.000 title claims abstract description 59
- 229910052783 alkali metal Inorganic materials 0.000 claims description 6
- 150000001340 alkali metals Chemical group 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 14
- 238000003426 chemical strengthening reaction Methods 0.000 abstract description 10
- 229910000272 alkali metal oxide Inorganic materials 0.000 abstract description 7
- 238000005342 ion exchange Methods 0.000 abstract description 6
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 abstract description 6
- 230000007423 decrease Effects 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 abstract description 3
- 235000010333 potassium nitrate Nutrition 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 4
- 229910011255 B2O3 Inorganic materials 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 2
- 229910052593 corundum Inorganic materials 0.000 abstract 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 abstract 2
- 229910052682 stishovite Inorganic materials 0.000 abstract 2
- 229910052905 tridymite Inorganic materials 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 235000010344 sodium nitrate Nutrition 0.000 abstract 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 29
- 230000003287 optical effect Effects 0.000 description 19
- 239000000463 material Substances 0.000 description 14
- 239000005345 chemically strengthened glass Substances 0.000 description 10
- 230000015654 memory Effects 0.000 description 10
- 230000005012 migration Effects 0.000 description 8
- 238000013508 migration Methods 0.000 description 8
- 230000006378 damage Effects 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000013011 mating Effects 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000005354 aluminosilicate glass Substances 0.000 description 4
- 239000005388 borosilicate glass Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000005361 soda-lime glass Substances 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 239000006103 coloring component Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 208000010392 Bone Fractures Diseases 0.000 description 2
- 206010017076 Fracture Diseases 0.000 description 2
- 206010034156 Pathological fracture Diseases 0.000 description 2
- 208000005250 Spontaneous Fractures Diseases 0.000 description 2
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005352 clarification Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000033458 reproduction Effects 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 229910017976 MgO 4 Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000006121 base glass Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007496 glass forming Methods 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
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
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
- C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium
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)
- Surface Treatment Of Glass (AREA)
- Glass Compositions (AREA)
- Magnetic Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6297088A JPH01239036A (ja) | 1988-03-16 | 1988-03-16 | 高強度ガラス |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6297088A JPH01239036A (ja) | 1988-03-16 | 1988-03-16 | 高強度ガラス |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01239036A true JPH01239036A (ja) | 1989-09-25 |
| JPH0470262B2 JPH0470262B2 (cg-RX-API-DMAC7.html) | 1992-11-10 |
Family
ID=13215711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6297088A Granted JPH01239036A (ja) | 1988-03-16 | 1988-03-16 | 高強度ガラス |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01239036A (cg-RX-API-DMAC7.html) |
Cited By (52)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0532431A (ja) * | 1991-05-20 | 1993-02-09 | Hoya Corp | 化学強化用ガラス |
| JPH0848537A (ja) * | 1994-08-05 | 1996-02-20 | Nippon Sheet Glass Co Ltd | 化学強化用ガラス |
| JPH08321034A (ja) * | 1991-05-20 | 1996-12-03 | Hoya Corp | 情報記録用基板および情報記録媒体 |
| JPH08335315A (ja) * | 1991-05-20 | 1996-12-17 | Hoya Corp | 情報記録媒体の製造方法 |
| JPH09197124A (ja) * | 1996-01-23 | 1997-07-31 | Nippon Electric Glass Co Ltd | ダイクロイックミラー |
| JPH1079122A (ja) * | 1996-09-04 | 1998-03-24 | Hoya Corp | 情報記録媒体用基板に適した材料の選定方法、この方法を用いて選定した材料、この材料を用いた基板及び磁気ディスク |
| JPH10167753A (ja) * | 1996-12-06 | 1998-06-23 | Carl Zeiss:Fa | 無鉛クラウンガラス |
| JPH10241134A (ja) * | 1996-12-26 | 1998-09-11 | Hoya Corp | 情報記録媒体用ガラス基板及びこれを用いた磁気記録媒体 |
| WO1999006333A1 (en) * | 1997-07-30 | 1999-02-11 | Hoya Corporation | Method of producing glass substrate for information recording medium |
| JPH11503403A (ja) * | 1996-02-07 | 1999-03-26 | サン−ゴバン ビトラージュ | ガラス基材の処理方法 |
| JPH11191212A (ja) * | 1997-12-25 | 1999-07-13 | Toshitomo Morisane | 高強度スムーズガラス基板 |
| JPH11232627A (ja) * | 1996-12-26 | 1999-08-27 | Hoya Corp | 情報記録媒体用基板 |
| JPH11314931A (ja) * | 1999-02-04 | 1999-11-16 | Nippon Sheet Glass Co Ltd | 化学強化用ガラス |
| US6063470A (en) * | 1996-09-04 | 2000-05-16 | Hoya Corporation | Substrate for information recording media and magnetic disc |
| JP2000322731A (ja) * | 1999-05-07 | 2000-11-24 | Ishizuka Glass Co Ltd | 情報記録媒体用ガラス基板 |
| EP1067102A2 (en) | 1999-07-07 | 2001-01-10 | Hoya Corporation | Substrate for information recording medium and magnetic recording medium composed of crystallized glass |
| US6187441B1 (en) | 1996-12-26 | 2001-02-13 | Hoya Corporation | Glass substrate for information recording medium and magnetic recording medium having the substrate |
| US6214429B1 (en) | 1996-09-04 | 2001-04-10 | Hoya Corporation | Disc substrates for information recording discs and magnetic discs |
| JP2001180969A (ja) * | 1999-12-28 | 2001-07-03 | Central Glass Co Ltd | リチウム含有高ヤング率ガラスおよびガラス物品 |
| JP2001523208A (ja) * | 1997-05-07 | 2001-11-20 | コーニング ソシエテ アノニム | 無機ガラスで構成された有機レンズ用金型および新規な無機ガラス |
| WO2001049620A3 (en) * | 2000-01-05 | 2002-04-18 | Schott Glass Tech Inc | Alkaline-earth-free boroalkali silicate glass |
| JP2002174810A (ja) * | 2000-12-08 | 2002-06-21 | Hoya Corp | ディスプレイ用ガラス基板及びその製造方法並びにこれを用いたディスプレイ |
| JP2002522346A (ja) * | 1998-08-14 | 2002-07-23 | コーニング インコーポレイテッド | 鉛を含まないガラス |
| WO2002051764A3 (de) * | 2000-12-22 | 2002-11-07 | Schott Glas | Zinkoxidhaltiges borosilicatglas |
| DE10141666A1 (de) * | 2001-08-25 | 2003-03-13 | Schott Glas | Zinkhaltiges Alkalialuminosilicatglas und seine Verwendungen |
| US6569792B2 (en) | 1998-03-13 | 2003-05-27 | Hoya Corporation | Crystallized glass for information recording medium, crystallized glass substrate, and information recording medium using the crystallized glass substrate |
| JP2007128054A (ja) * | 2005-10-03 | 2007-05-24 | Nippon Electric Glass Co Ltd | 携帯機器表示装置用保護板 |
| US7264894B2 (en) | 1998-03-13 | 2007-09-04 | Hoya Corporation | Crystallized glass for information recording medium, crystallized glass substrate, and information recording medium using the crystallized glass substrate |
| WO2007138986A1 (ja) * | 2006-05-25 | 2007-12-06 | Nippon Electric Glass Co., Ltd. | 強化ガラス及びその製造方法 |
| JP2008001590A (ja) * | 2006-05-25 | 2008-01-10 | Nippon Electric Glass Co Ltd | 強化ガラス及びその製造方法 |
| WO2008050500A1 (en) * | 2006-09-29 | 2008-05-02 | Nippon Electric Glass Co., Ltd. | Protective plate for portable equipment display device |
| JP2008115071A (ja) * | 2006-10-10 | 2008-05-22 | Nippon Electric Glass Co Ltd | 強化ガラス基板 |
| JP2008115072A (ja) * | 2006-10-10 | 2008-05-22 | Nippon Electric Glass Co Ltd | 強化ガラス基板 |
| US7462411B2 (en) | 2002-06-03 | 2008-12-09 | Hoya Corporation | Substrate for information recording medium, information recording medium and process for producing the same |
| US7601446B2 (en) | 2002-11-07 | 2009-10-13 | Hoya Corporation | Substrate for information recording medium, information recording medium and method for manufacturing same |
| JP2011141568A (ja) * | 2005-10-03 | 2011-07-21 | Nippon Electric Glass Co Ltd | 携帯機器表示装置用保護板 |
| JP2011178662A (ja) * | 2007-08-03 | 2011-09-15 | Nippon Electric Glass Co Ltd | 強化ガラス基板及びその製造方法 |
| US8222170B2 (en) | 2001-05-31 | 2012-07-17 | Hoya Corporation | Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied |
| DE19701095B4 (de) * | 1996-01-24 | 2012-11-15 | General Electric Co. | Glas-Zusammensetzung für elektrische Lampen |
| JP2013047174A (ja) * | 2011-08-22 | 2013-03-07 | Henan Guokong Yufei Electronic Glass Co Ltd | ガラス組成物、それから得られたガラス、並びに、ガラスの製造方法及び使用。 |
| JP2013121910A (ja) * | 2007-03-02 | 2013-06-20 | Nippon Electric Glass Co Ltd | 強化板ガラスとその製造方法 |
| JPWO2011136027A1 (ja) * | 2010-04-27 | 2013-07-18 | 旭硝子株式会社 | 磁気ディスクおよび情報記録媒体用ガラス基板の製造方法 |
| JP2013536155A (ja) * | 2010-08-26 | 2013-09-19 | コーニング インコーポレイテッド | ガラスを強化する二段階法 |
| KR20140099932A (ko) * | 2011-11-30 | 2014-08-13 | 코닝 인코포레이티드 | 착색 알칼리 알루미노실리케이트 유리 제품 |
| JP2015094785A (ja) * | 2013-11-08 | 2015-05-18 | 旭硝子株式会社 | 光学素子 |
| KR20170118923A (ko) * | 2015-02-26 | 2017-10-25 | 코닝 인코포레이티드 | 3-차원 형상을 위한 이온교환 가능한 연질 유리 |
| JP2017535503A (ja) * | 2014-11-19 | 2017-11-30 | 成都光明光▲電▼股▲分▼有限公司 | 高硬度透明結晶質ガラス及びその調製方法 |
| JP2017218353A (ja) * | 2016-06-09 | 2017-12-14 | 日本電気硝子株式会社 | 医薬品容器用ガラス及び医薬品容器用ガラス管 |
| JP2019006643A (ja) * | 2017-06-27 | 2019-01-17 | 日本電気硝子株式会社 | 光学ガラス |
| KR20210005590A (ko) * | 2018-04-20 | 2021-01-14 | 가부시키가이샤 오하라 | 곡면 형상을 갖는 결정화 유리 부재의 제조 방법 |
| JPWO2019163491A1 (ja) * | 2018-02-20 | 2021-02-04 | 日本電気硝子株式会社 | ガラス |
| JP2024163191A (ja) * | 2018-08-22 | 2024-11-21 | コーニング インコーポレイテッド | ガラス物品 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS496012A (cg-RX-API-DMAC7.html) * | 1972-05-10 | 1974-01-19 | ||
| JPS5536609A (en) * | 1978-09-02 | 1980-03-14 | Junpei Kuno | Dual stop water supply faucet |
| JPS5551733A (en) * | 1978-10-06 | 1980-04-15 | Nippon Sheet Glass Co Ltd | Glass for light transmission body with superior weather resistance |
| JPS57129839A (en) * | 1981-02-02 | 1982-08-12 | Seiko Epson Corp | Cover glass for watch |
| JPS60260443A (ja) * | 1984-06-07 | 1985-12-23 | Nippon Sheet Glass Co Ltd | アルカリ溶出の少いガラス組成物 |
| JPS6168349A (ja) * | 1984-09-07 | 1986-04-08 | Toshiba Glass Co Ltd | 耐摩耗性ガラスビ−ズ |
| JPS6265954A (ja) * | 1985-09-18 | 1987-03-25 | Nippon Electric Glass Co Ltd | アルミナ封着用硼珪酸ガラス |
-
1988
- 1988-03-16 JP JP6297088A patent/JPH01239036A/ja active Granted
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS496012A (cg-RX-API-DMAC7.html) * | 1972-05-10 | 1974-01-19 | ||
| JPS5536609A (en) * | 1978-09-02 | 1980-03-14 | Junpei Kuno | Dual stop water supply faucet |
| JPS5551733A (en) * | 1978-10-06 | 1980-04-15 | Nippon Sheet Glass Co Ltd | Glass for light transmission body with superior weather resistance |
| JPS57129839A (en) * | 1981-02-02 | 1982-08-12 | Seiko Epson Corp | Cover glass for watch |
| JPS60260443A (ja) * | 1984-06-07 | 1985-12-23 | Nippon Sheet Glass Co Ltd | アルカリ溶出の少いガラス組成物 |
| JPS6168349A (ja) * | 1984-09-07 | 1986-04-08 | Toshiba Glass Co Ltd | 耐摩耗性ガラスビ−ズ |
| JPS6265954A (ja) * | 1985-09-18 | 1987-03-25 | Nippon Electric Glass Co Ltd | アルミナ封着用硼珪酸ガラス |
Cited By (74)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08321034A (ja) * | 1991-05-20 | 1996-12-03 | Hoya Corp | 情報記録用基板および情報記録媒体 |
| JPH08335315A (ja) * | 1991-05-20 | 1996-12-17 | Hoya Corp | 情報記録媒体の製造方法 |
| JPH0532431A (ja) * | 1991-05-20 | 1993-02-09 | Hoya Corp | 化学強化用ガラス |
| JPH0848537A (ja) * | 1994-08-05 | 1996-02-20 | Nippon Sheet Glass Co Ltd | 化学強化用ガラス |
| JPH09197124A (ja) * | 1996-01-23 | 1997-07-31 | Nippon Electric Glass Co Ltd | ダイクロイックミラー |
| DE19701095B4 (de) * | 1996-01-24 | 2012-11-15 | General Electric Co. | Glas-Zusammensetzung für elektrische Lampen |
| JPH11503403A (ja) * | 1996-02-07 | 1999-03-26 | サン−ゴバン ビトラージュ | ガラス基材の処理方法 |
| US5981015A (en) * | 1996-09-04 | 1999-11-09 | Hoya Corporation | Method for selecting a material suitable for a substrate for information recording media, material selected using this method, and magnetic disk formed using this material |
| JPH1079122A (ja) * | 1996-09-04 | 1998-03-24 | Hoya Corp | 情報記録媒体用基板に適した材料の選定方法、この方法を用いて選定した材料、この材料を用いた基板及び磁気ディスク |
| US6063470A (en) * | 1996-09-04 | 2000-05-16 | Hoya Corporation | Substrate for information recording media and magnetic disc |
| US6214429B1 (en) | 1996-09-04 | 2001-04-10 | Hoya Corporation | Disc substrates for information recording discs and magnetic discs |
| JPH10167753A (ja) * | 1996-12-06 | 1998-06-23 | Carl Zeiss:Fa | 無鉛クラウンガラス |
| JPH10241134A (ja) * | 1996-12-26 | 1998-09-11 | Hoya Corp | 情報記録媒体用ガラス基板及びこれを用いた磁気記録媒体 |
| JPH11232627A (ja) * | 1996-12-26 | 1999-08-27 | Hoya Corp | 情報記録媒体用基板 |
| US6187441B1 (en) | 1996-12-26 | 2001-02-13 | Hoya Corporation | Glass substrate for information recording medium and magnetic recording medium having the substrate |
| JP2001523208A (ja) * | 1997-05-07 | 2001-11-20 | コーニング ソシエテ アノニム | 無機ガラスで構成された有機レンズ用金型および新規な無機ガラス |
| WO1999006333A1 (en) * | 1997-07-30 | 1999-02-11 | Hoya Corporation | Method of producing glass substrate for information recording medium |
| JP3928884B2 (ja) * | 1997-07-30 | 2007-06-13 | Ｈｏｙａ株式会社 | 情報記録媒体用ガラス基板の製造方法 |
| US6332338B1 (en) | 1997-07-30 | 2001-12-25 | Hoya Corporation | Method of producing glass substrate for information recording medium |
| JPH11191212A (ja) * | 1997-12-25 | 1999-07-13 | Toshitomo Morisane | 高強度スムーズガラス基板 |
| US6774072B2 (en) | 1998-03-13 | 2004-08-10 | Hoya Corporation | Crystallized glass for information recording medium, crystallized glass substrate, and information recording medium using the crystallized glass substrate |
| EP2011770A2 (en) | 1998-03-13 | 2009-01-07 | Hoya Corporation | Crystallized glass for information recording medium, cystallized glass substrate, and information recording medium using the crystallized glass |
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