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1. 发明授权

US06399527B1 Glass composition and substrate for information recording medium 有权
标题翻译：用于信息记录介质的玻璃组合物和底物
公开(公告)号：US06399527B1
公开(公告)日：2002-06-04
申请号：US09401126
申请日：1999-09-22
申请人： Shoichi Kishimoto , Akihiro Koyama , Junji Kurachi , Nobuyuki Yamamoto
发明人： Shoichi Kishimoto , Akihiro Koyama , Junji Kurachi , Nobuyuki Yamamoto
IPC分类号： C03C3085
CPC分类号： C03C3/085 , C03C3/087
摘要： A glass composition having a high Young's modulus and a low density is disclosed which can be mass-produced by a continuous process and easily made to have high surface smoothness. Also disclosed are a substrate including the glass composition and reduced in bending and resonance even upon high-speed rotation, a recording medium usable at a lower flying height, and an information recording device having a higher recording capacity and a shorter access time. The glass composition includes, in terms of mol %, 40 to 55% silicon dioxide (SiO2), 0.5 to 6% aluminum oxide (Al2O3), 2 to 20% lithium oxide (Li2O), 0 to 10% sodium monoxide ((Na2O), 2 to 30% R2O (R2O=Li2O+Na2O), 5 to 25% magnesium oxide (MgO), 0 to 25% calcium oxide (CaO), 0 to 10% strontium oxide (SrO), 10 to 40% RO (RO=MgO+CaO+SrO), 0 to 10% titanium dioxide (TiO2), and 0 to 5% zirconium oxide (ZrO2).
摘要翻译：公开了具有高杨氏模量和低密度的玻璃组合物，其可以通过连续工艺大量生产并且易于制成具有高表面平滑度。还公开了包括玻璃组合物的基底，即使在高速旋转时减少弯曲和共振，可以在较低飞行高度下使用的记录介质，以及具有较高记录容量和较短访问时间的信息记录装置。玻璃组合物以摩尔％计包含40至55％的二氧化硅（SiO 2），0.5至6％的氧化铝（Al 2 O 3），2至20％的氧化锂（Li 2 O），0至10％的一氧化钠（（Na 2 O）），2〜30％的R2O（R2O = Li2O + Na2O），5〜25％的氧化镁（MgO），0〜25％的氧化钙（CaO），0〜10％的氧化锶（SrO），10〜40％的RO （RO = MgO + CaO + SrO），0〜10％的二氧化钛（TiO 2）和0〜5％的氧化锆（ZrO 2）。

2. 发明授权

US06306786B1 Glass composition and process for producing the same 有权
标题翻译：玻璃组合物及其制造方法
公开(公告)号：US06306786B1
公开(公告)日：2001-10-23
申请号：US09293991
申请日：1999-04-19
申请人： Akihiro Koyama , Shoichi Kishimoto , Junji Kurachi , Nobuyuki Yamamoto
发明人： Akihiro Koyama , Shoichi Kishimoto , Junji Kurachi , Nobuyuki Yamamoto
IPC分类号： C03C3062
CPC分类号： C03C3/062 , C03C3/085 , C03C3/087 , C03C21/002 , Y10T428/315
摘要： A glass composition is disclosed which has a high modulus elasticity (Young's modulus) and a high rigidity (modulus of elasticity/specific gravity) and is capable of being effectively inhibited from bending or vibrating. Also disclosed is a process for producing the glass composition. The glass composition comprises, in terms of mol %, 40 to 65% SiO2, 5 to 25% Al2O3, 2 to 20% Li2O, 0 to 9% Na2O, 0 to 10% TiO2, 0 to 10% ZrO2, 0 to 25% MgO, 0 to 25% CaO, and 0 to 10% SrO, provided that the content of RO (RO=MgO+CaO+SrO) is from 2 to 40% and the sum of (Li2O)/2 and Na2O is from 1 to 10 mol %, said glass composition further containing, as clarifiers, from 0.01 to 5 mol % SnO2 and up to 0.1 mol % sulfur (S) in terms of the amount of SO3.
摘要翻译：公开了具有高模量弹性（杨氏模量）和高刚性（弹性/比重）的玻璃组合物，能够有效地抑制弯曲或振动。还公开了一种玻璃组合物的制造方法。该玻璃组合物以摩尔％计含有40至65％的SiO 2，5至25％的Al 2 O 3，2至20％的Li 2 O，0至9％的Na 2 O，0至10的TiO 2，0至10的ZrO 2，0至25 （MgO），0〜25％的CaO和0〜10％的SrO，条件是RO（RO = MgO + CaO + SrO）的含量为2〜40％，（Li 2 O）/ 2和Na 2 O的总和来自 1〜10摩尔％，所述玻璃组合物还含有以SO 3量计的0.01〜5摩尔％的SnO 2和0.1摩尔％的硫（S）作为澄清剂。

3. 发明授权

US06376403B1 Glass composition and process for producing the same 有权
标题翻译：玻璃组合物及其制造方法
公开(公告)号：US06376403B1
公开(公告)日：2002-04-23
申请号：US09933016
申请日：2001-08-21
申请人： Akihiro Koyama , Shoichi Kishimoto , Junji Kurachi , Nobuyuki Yamamoto
发明人： Akihiro Koyama , Shoichi Kishimoto , Junji Kurachi , Nobuyuki Yamamoto
IPC分类号： C03C3085
CPC分类号： C03C3/087 , C03C3/062 , C03C3/085 , Y10T428/315
摘要： A glass composition is disclosed which has a high modulus of elasticity (Young's modulus) and a high rigidity (modulus of elasticity/specific gravity) and is capable of being effectively inhibited from bending or vibrating. Also disclosed is process for producing the glass composition. The glass composition comprises, in terms of mol %, 40 to 65% SiO2, 5 to 25% Al2O3, 2 to 20% Li2O, 0 to 9% Na2O, 0 to 10% TiO2, 0 to 10% ZrO2, 0 to 25% MgO, 0 to 25% CaO, and 0 to 10% SrO, provided that the content of RO (RO=MgO+CaO+SrO) is from 2 to 40% and the sum of (Li2O)/2 and Na2O is from 1 to 10 mol %, said glass composition further containing, as clarifiers, from 0.01 to 5 mol % SnO2 and up to 0.1 mol % sulfur (S) in terms of the amount of SO3.
摘要翻译：公开了具有高弹性模量（杨氏模量）和高刚性（弹性模量/比重）的玻璃组合物，并且能够被有效地抑制弯曲或振动。还公开了制造玻璃组合物的方法。该玻璃组合物以摩尔％计含有40至65％的SiO 2，5至25％的Al 2 O 3，2至20％的Li 2 O，0至9％的Na 2 O，0至10的TiO 2，0至10的ZrO 2，0至25 （MgO），0〜25％的CaO和0〜10％的SrO，条件是RO（RO = MgO + CaO + SrO）的含量为2〜40％，（Li 2 O）/ 2和Na 2 O的总和来自 1〜10摩尔％，所述玻璃组合物还含有以SO 3量计的0.01〜5摩尔％的SnO 2和0.1摩尔％的硫（S）作为澄清剂。

4. 发明授权

US06365534B1 Glass composition and substrate for information recording media comprising the same 有权
标题翻译：用于包含该玻璃组合物的信息记录介质的玻璃组合物和基底
公开(公告)号：US06365534B1
公开(公告)日：2002-04-02
申请号：US09661427
申请日：2000-09-13
申请人： Akihiro Koyama , Shoichi Kishimoto , Junji Kurachi , Nobuyuki Yamamoto
发明人： Akihiro Koyama , Shoichi Kishimoto , Junji Kurachi , Nobuyuki Yamamoto
IPC分类号： C03C3087
CPC分类号： C03C21/002 , C03C3/085 , C03C3/087 , Y10T428/315
摘要： A glass composition is disclosed which has a high modulus of elasticity (Young's modulus) and a high rigidity (modulus of elasticity/specific gravity) and is capable of being effectively inhibited from bending or vibrating. Also disclosed is a substrate for information recording media, which comprises the glass composition. The glass composition comprises the following components in terms of mol %: 50 to 64% SiO2, 6 to 18% Al2O3, 7 to 15% Li2O, 3 to 12% Na2O, 0 to 2% K2O, 0 to 10% TiO2, 0 to 4% ZrO2, 0 to 6% MgO, 0 to 9% CaO, and 0 to 6% SrO, provided that the content of RO (RO=MgO+CaO+SrO) is from 2 to 15%.
摘要翻译：公开了具有高弹性模量（杨氏模量）和高刚性（弹性模量/比重）的玻璃组合物，并且能够被有效地抑制弯曲或振动。还公开了一种包括玻璃组合物的信息记录介质用基板。该玻璃组合物包含以摩尔％计的以下组分：50至64％SiO 2，6至18％Al 2 O 3，7至15％Li 2 O，3至12％Na 2 O，0至2％K 2 O，0至10％TiO 2，0 至4％的ZrO 2，0〜6％的MgO，0〜9％的CaO和0〜6％的SrO，条件是RO（RO = MgO + CaO + SrO）的含量为2〜15％。

5. 发明授权

US06340647B1 Glass composition and substrate for information recording media comprising the same 有权
标题翻译：用于包含该玻璃组合物的信息记录介质的玻璃组合物和基底
公开(公告)号：US06340647B1
公开(公告)日：2002-01-22
申请号：US09293992
申请日：1999-04-19
申请人： Akihiro Koyama , Shoichi Kishimoto , Junji Kurachi , Nobuyuki Yamamoto
发明人： Akihiro Koyama , Shoichi Kishimoto , Junji Kurachi , Nobuyuki Yamamoto
IPC分类号： C03C3062
CPC分类号： G11B5/7315 , C03C3/062 , C03C3/085 , C03C3/087 , C03C21/002 , Y10T428/315
摘要： A glass composition is disclosed which has a high modulus of elasticity (Young's modulus) and a high rigidity (modulus of elasticity/specific gravity) and is capable of being effectively inhibited from bending or vibrating. Also disclosed is a substrate for information recording media, which comprises the glass composition. The glass composition comprises the following components in terms of mol %: 40 to 60% SiO2, 8 to 25% Al2O3, 2 to 20% Li2O, 0 to 5% Na2O; provided that the content of R2O (R2O=Li2O+Na2O) is from 2 to 20%, 0 to 10% TiO2, 0 to 10% ZrO2, 5 to 25% MgO, 0 to 25% CaO and 0 to 6% SrO, provided that the content of RO (RO=MgO+CaO+SrO) is from more than 15 to 40%.
摘要翻译：公开了具有高弹性模量（杨氏模量）和高刚性（弹性模量/比重）的玻璃组合物，并且能够被有效地抑制弯曲或振动。还公开了一种包括玻璃组合物的信息记录介质用基板。该玻璃组合物包含以摩尔％计的以下成分：40-60％SiO 2，8-25％Al 2 O 3，2至20％Li 2 O，0至5％Na 2 O; 条件是R2O（R2O = Li2O + Na2O）的含量为2〜20％，0〜10％TiO 2，0〜10％ZrO 2，5〜25％MgO，0〜25％CaO和0〜6％SrO， RO（RO = MgO + CaO + SrO）的含量为15〜40％左右。

6. 发明授权

US06333286B1 Glass composition and substrate for information recording media comprising the same 有权
标题翻译：用于包含该玻璃组合物的信息记录介质的玻璃组合物和基底
公开(公告)号：US06333286B1
公开(公告)日：2001-12-25
申请号：US09377149
申请日：1999-08-19
申请人： Junji Kurachi , Akihiro Koyama , Shoichi Kishimoto , Nobuyuki Yamamoto
发明人： Junji Kurachi , Akihiro Koyama , Shoichi Kishimoto , Nobuyuki Yamamoto
IPC分类号： C03C3085
CPC分类号： G11B5/7315 , C03C3/087 , G11B23/0014
摘要： A glass composition is disclosed which has a high modulus of elasticity (Young's modulus) and a high rigidity (modulus of elasticity/specific gravity) and is capable of being effectively inhibited from bending or vibrating. Also disclosed is a substrate for information recording media which comprises the glass composition. The glass composition comprises the following components, in terms of mol %: 55 to 65% SiO2, 0.5 to less than 6% Al2O3, 12 to 22% Li2O, 0 to 5% Na2O, 0 to 10% TiO2, 0 to 3% ZrO2, 0 to 8% MgO, 0 to 18% CaO, and 0 to 6% SrO, provided that the content of RO (RO=MgO+CaO+SrO) is 5 to 18%.
摘要翻译：公开了具有高弹性模量（杨氏模量）和高刚性（弹性模量/比重）的玻璃组合物，并且能够被有效地抑制弯曲或振动。还公开了一种包含玻璃组合物的信息记录介质用基板。该玻璃组合物包含以摩尔％计的以下组分：55至65％的SiO 2，0.5至小于6的Al 2 O 3，12至22的Li 2 O，0至5的Na 2 O，0至10的TiO 2，0至3重量％ ZrO 2，0〜8％MgO，0〜18％CaO和0〜6％SrO，条件是RO（RO = MgO + CaO + SrO）的含量为5〜18％。

7. 发明授权

US06251812B1 Glass composition and substrate for information recording media comprising the same 有权
标题翻译：用于包含该玻璃组合物的信息记录介质的玻璃组合物和基底
公开(公告)号：US06251812B1
公开(公告)日：2001-06-26
申请号：US09293989
申请日：1999-04-19
申请人： Akihiro Koyama , Shoichi Kishimoto , Junji Kurachi , Nobuyuki Yamamoto
发明人： Akihiro Koyama , Shoichi Kishimoto , Junji Kurachi , Nobuyuki Yamamoto
IPC分类号： C03C3085
CPC分类号： C03C21/002 , C03C3/085 , C03C3/087 , Y10T428/315
摘要： A glass composition is disclosed which has a high modulus of elasticity (Young's modulus) and a high rigidity (modulus of elasticity/specific gravity) and is capable of being effectively inhibited from bending or vibrating. Also disclosed is a substrate for information recording media, which comprises the glass composition. The glass composition comprises the following components in terms of mol %: 50 to 64% SiO2, 6 to 18% Al2O3, 7 to 15% Li2O, 3 to 12% Na2O, 0 to 2% K2O, 0 to 10% TiO2, 0 to 4% ZrO2, 0 to 6% MgO, 0 to 9% CaO, and 0 to 6% SrO, provided at the content of RO (RO=MgO+CaO+SrO) is from 2 to 15%.
摘要翻译：公开了具有高弹性模量（杨氏模量）和高刚性（弹性模量/比重）的玻璃组合物，并且能够被有效地抑制弯曲或振动。还公开了一种包括玻璃组合物的信息记录介质用基板。该玻璃组合物包含以摩尔％计的以下组分：50至64％SiO 2，6至18％Al 2 O 3，7至15％Li 2 O，3至12％Na 2 O，0至2％K 2 O，0至10％TiO 2，0 至RO含量为4％的ZrO 2，0〜6％的MgO，0〜9％的CaO，0〜6％的SrO为RO 2（RO = MgO + CaO + SrO）。

8. 发明授权

US06576353B1 Glass substrate for use as information recording medium and method of manufacturing such glass substrate 有权
标题翻译：用作信息记录介质的玻璃基板和制造这种玻璃基板的方法
公开(公告)号：US06576353B1
公开(公告)日：2003-06-10
申请号：US09526583
申请日：2000-03-16
申请人： Kazuishi Mitani , Yasuhiro Saito , Koichi Ataka , Akihiro Koyama , Junji Kurachi , Nobuyuki Yamamoto , Yoshihiro Matsuno
发明人： Kazuishi Mitani , Yasuhiro Saito , Koichi Ataka , Akihiro Koyama , Junji Kurachi , Nobuyuki Yamamoto , Yoshihiro Matsuno
IPC分类号： B32B1706
CPC分类号： G11B5/7315 , C03C3/083 , C03C15/00 , C03C21/002 , G11B5/8404 , Y10T428/315
摘要： A glass substrate for use as an information recording medium has an average surface roughness (Ra) in the range of 0.3 nm≦Ra
摘要翻译：用作信息记录介质的玻璃基板的平均表面粗糙度（Ra）在0.3nm <= Ra <3.0nm的范围内，并且包括各向同性地分布成形并分布大致连续布置的表面凹凸。在50mum×50μm的面积内，表面凹凸包括高度至少为3nm的5〜50,000个凸部，高度为15nm以下的凸部。如果用碱性溶液过度蚀刻，则通过在玻璃基板中的酸处理工艺制造的多孔区域将被完全去除。然而，通过控制酸碱处理工艺的条件，可以在多孔区域中的孔扩大的阶段停止使用碱性溶液的蚀刻工艺。

9. 发明申请

US20080053152A1 GLASS COMPOSITION, GLASS ARTICLE, GLASS SUBSTRATE FOR MAGNETIC RECORDING MEDIA, AND METHOD FOR PRODUCING THE SAME 有权
标题翻译：玻璃组合物，玻璃制品，用于磁记录介质的玻璃基材及其制造方法
公开(公告)号：US20080053152A1
公开(公告)日：2008-03-06
申请号：US11933581
申请日：2007-11-01
申请人： Junji Kurachi , Akihiro Koyama , Nobuyuki Yamamoto
发明人： Junji Kurachi , Akihiro Koyama , Nobuyuki Yamamoto
IPC分类号： C03C3/083 , C03C21/00
CPC分类号： C03C21/002 , C03C3/087 , Y10T428/315
摘要： A glass substrate of the present invention for magnetic recording media having high heat resistance and easy chemical strengthening ability at once has not been obtained, which is a glass composition essentially comprising 60 to 70 wt % SiO2, 5 to 20 wt % Al2O3, 0 to 1 wt % Li2O, 3 to 18 wt % Na2O, 0 to 9 wt % K2O, 0 to 10 wt % MgO, 1 to 15 wt % CaO, 0 to 4.5 wt % SrO, 0 to 1 wt % BaO, 0 to 1 wt % TiO2 and 0 to 1 wt % ZrO2, wherein the sum of Li2O, Na2O and K2O is from 5 to 25 wt %, and the sum of MgO, CaO, SrO and BaO is from 5 to 20 wt %.
摘要翻译：本发明的用于磁记录介质的具有高耐热性并且容易化学强化能力的本发明的玻璃基板尚未得到，它是基本上包含60至70重量％的SiO 2，5 至20重量％的Al 2 O 3 3，0至1重量％的Li 2 O 3，3至18重量％的Na 2，，0〜9重量％的K 2 O，0〜10重量％的MgO，1〜15重量％的CaO，0〜4.5重量％的SrO，0〜1重量％的BaO，0 至1重量％的TiO 2和0至1重量％的ZrO 2，其中Li 2 O 2，Na 2， O 2和K 2 O 5为5〜25重量％，MgO，CaO，SrO和BaO的总和为5〜20重量％。

10. 发明授权

US07309671B2 Glass composition, glass article, glass substrate for magnetic recording media, and method for producing the same 有权
标题翻译：玻璃组合物，玻璃制品，磁记录介质用玻璃基板及其制造方法
公开(公告)号：US07309671B2
公开(公告)日：2007-12-18
申请号：US10442933
申请日：2003-05-22
申请人： Junji Kurachi , Akihiro Koyama , Nobuyuki Yamamoto
发明人： Junji Kurachi , Akihiro Koyama , Nobuyuki Yamamoto
IPC分类号： C03C3/087 , G11B5/706
CPC分类号： C03C21/002 , C03C3/087 , Y10T428/315
摘要： A glass substrate of the present invention for magnetic recording media having high heat resistance and easy chemical strengthening ability at once has not been obtained, which is a glass composition essentially comprising 60 to 70 wt % SiO2, 5 to 20 wt % Al2O3, 0 to 1 wt % Li2O, 3 to 18 wt % Na2O, 0 to 9 wt % K2O, 0 to 10 wt % MgO, 1 to 15 wt % CaO, 0 to 4.5 wt % SrO, 0 to 1 wt % BaO, 0 to 1 wt % TiO2 and 0 to 1 wt % ZrO2, wherein the sum of Li2O, Na2O and K2O is from 5 to 25 wt %, and the sum of MgO, CaO, SrO and BaO is from 5 to 20 wt %.
摘要翻译：本发明的用于磁记录介质的具有高耐热性并且容易化学强化能力的本发明的玻璃基板尚未得到，它是基本上包含60至70重量％的SiO 2，5 至20重量％的Al 2 O 3 3，0至1重量％的Li 2 O 3，3至18重量％的Na 2，，0〜9重量％的K 2 O，0〜10重量％的MgO，1〜15重量％的CaO，0〜4.5重量％的SrO，0〜1重量％的BaO，0 至1重量％的TiO 2和0至1重量％的ZrO 2，其中Li 2 O 2，Na 2， O 2和K 2 O 5为5〜25重量％，MgO，CaO，SrO和BaO的总和为5〜20重量％。

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