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    Glass composition including zirconium, chemically strengthened glass article, glass substrate for magnetic recording media, and method of producing glass sheet
    11.
    发明授权
    Glass composition including zirconium, chemically strengthened glass article, glass substrate for magnetic recording media, and method of producing glass sheet 有权
    玻璃组合物，包括锆，化学强化玻璃制品，磁记录介质用玻璃基板和玻璃板的制造方法

    公开(公告)号：US07273668B2

    公开(公告)日：2007-09-25

    申请号：US10860713

    申请日：2004-06-03

    申请人： Junji Kurachi ,  Akihiro Koyama

    发明人： Junji Kurachi ,  Akihiro Koyama

    IPC分类号： G11B5/82 ,  C03C3/087

    CPC分类号： C03C3/085

    摘要： The present invention provides a glass composition that has excellent heat resistance and ion exchange ability and can be provided with high strength by a chemical strengthening treatment through an ion exchange. This glass composition includes, in terms of mass %: 59 to 68% of SiO2; 9.5 to 15% of Al2O3; 0 to 1% of Li2O; 3 to 18% of Na2O; 0 to 3.5% of K2O; 0 to 15% of MgO; 1 to 15% of CaO; 0 to 4.5% of SrO; 0 to 1% of BaO; 0 to 2% of TiO2; and 1 to 10% of ZrO2. The glass composition of the present invention is suitable for a glass substrate for magnetic recording media and also can be formed as a chemically strengthened glass article through an ion-exchange treatment.

    摘要翻译： 本发明提供了具有优异的耐热性和离子交换能力的玻璃组合物，并且可以通过离子交换通过化学强化处理而具有高强度。 该玻璃组合物以质量％计含有：59〜68％的SiO 2; 9.5至15％的Al 2 O 3 3; 0〜1％的Li 2 O; 3〜18％的Na 2 O; 0〜3.5％的K 2 O; 0〜15％的MgO; 1〜15％的CaO; 0〜4.5％的SrO; 0〜1％的BaO; 0〜2％的TiO 2; 和1至10％的ZrO 2 2。 本发明的玻璃组合物适用于磁记录介质用玻璃基板，也可以通过离子交换处理形成为化学强化玻璃制品。

    Glass composition and substrate for information recording media comprising the same
    12.
    发明授权
    Glass composition and substrate for information recording media comprising the same 有权
    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。

    Glass composition, glass article, glass substrate for magnetic recording media, and method for producing the same
    13.
    发明授权
    Glass composition, glass article, glass substrate for magnetic recording media, and method for producing the same 有权
    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：US07767607B2

    公开(公告)日：2010-08-03

    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： C03C3/087 ,  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： 本发明的用于具有高耐热性和易于化学强化能力的磁记录介质的本发明的玻璃基板尚未得到，其为基本上包含60至70重量％的SiO 2，5至20重量％的Al 2 O 3，0至 1重量％Li 2 O，3〜18重量％Na 2 O，0〜9重量％K 2 O，0〜10重量％MgO，1〜15重量％CaO，0〜4.5重量％SrO，0〜1重量％BaO，0〜1 重量％TiO 2和0〜1重量％的ZrO 2，其中Li 2 O，Na 2 O和K 2 O的总和为5〜25重量％，MgO，CaO，SrO和BaO的总和为5〜20重量％。

    Glass composition and process for producing the same
    16.
    发明授权
    Glass composition and process for producing the same 有权
    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。

    Glass composition and substrate for information recording media comprising the same
    17.
    发明授权
    Glass composition and substrate for information recording media comprising the same 有权
    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％。

    Glass substrate for display and display
    18.
    发明申请
    Glass substrate for display and display 有权
    用于显示和显示的玻璃基板

    公开(公告)号：US20100298112A1

    公开(公告)日：2010-11-25

    申请号：US12801570

    申请日：2010-06-15

    申请人： Junji Kurachi ,  Akihiro Koyama ,  Yoichi Hachitani

    发明人： Junji Kurachi ,  Akihiro Koyama ,  Yoichi Hachitani

    IPC分类号： C03C3/091 ,  C03B17/06

    CPC分类号： C03C3/091 ,  Y10T428/1095

    摘要： A glass substrate for a display, which is formed of a glass having a light weight and having high refinability with decreasing environmental burdens, the glass comprising, by mass %, 50 to 70% of SiO2, 5 to 18% of B2O3, 10 to 25% of Al2O3, 0 to 10% of MgO, 0 to 20% of CaO, 0 to 20% of SrO, 0 to 10% of BaO, 5 to 20% of RO (in which R is at least one member selected from the group consisting of Mg, Ca, Sr and Ba), and over 0.20% but not more than 2.0% of R′2O (in which R′ is at least one member selected from the group consisting of Li, Na and K), and containing, by mass %, 0.05 to 1.5% of oxide of metal that changes in valence number in a molten glass, and substantially containing none of As2O3, Sb2O3 and PbO.

    摘要翻译： 一种显示器用玻璃基板，其由重量轻且具有降低的环境负荷的高可熔性的玻璃形成，所述玻璃以质量％计含有50〜70％的SiO 2，5〜18％的B 2 O 3，10〜 25％的Al 2 O 3，0〜10％的MgO，0〜20％的CaO，0〜20％的SrO，0〜10％的BaO，5〜20％的RO（其中R为选自 由Mg，Ca，Sr和Ba组成的组）和超过0.20％但不超过2.0％的R'2O（其中R'为选自Li，Na和K中的至少一种）， 并且以质量％计含有熔融玻璃中价数变化的金属氧化物的0.05〜1.5％，并且基本上不含有As 2 O 3，Sb 2 O 3和PbO。

    Glass substrate for display and display
    19.
    发明授权
    Glass substrate for display and display 有权

    公开(公告)号：US07763559B2

    公开(公告)日：2010-07-27

    申请号：US12071063

    申请日：2008-02-14

    申请人： Junji Kurachi ,  Akihiro Koyama ,  Yoichi Hachitani

    发明人： Junji Kurachi ,  Akihiro Koyama ,  Yoichi Hachitani

    IPC分类号： C03C3/091 ,  C03C3/093

    CPC分类号： C03C3/091 ,  Y10T428/1095

    摘要： A glass substrate for a display, which is formed of a glass having a light weight and having high refinability with decreasing environmental burdens, the glass comprising, by mass %, 50 to 70% of SiO2, 5 to 18% of B2O3, 10 to 25% of Al2O3, 0 to 10% of MgO, 0 to 20% of CaO, 0 to 20% of SrO, 0 to 10% of BaO, 5 to 20% of RO (in which R is at least one member selected from the group consisting of Mg, Ca, Sr and Ba), and over 0.20% but not more than 2.0% of R′2O (in which R′ is at least one member selected from the group consisting of Li, Na and K), and containing, by mass %, 0.05 to 1.5% of oxide of metal that changes in valence number in a molten glass, and substantially containing none of As2O3, Sb2O3 and PbO.