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21. 发明授权

US06297182B1 Glass for a substrate 有权
标题翻译：用于基材的玻璃
公开(公告)号：US06297182B1
公开(公告)日：2001-10-02
申请号：US09358421
申请日：1999-07-22
申请人： Kei Maeda , Seiki Ohara , Tetsuya Nakashima , Yasumasa Nakao
发明人： Kei Maeda , Seiki Ohara , Tetsuya Nakashima , Yasumasa Nakao
IPC分类号： C03C3091
CPC分类号： C03C3/091 , C03C3/093
摘要： A glass for a substrate consisting essentially of: SiO2 45 to 65 wt %, Al2O3 6 to 20 wt %, B2O3 0.5 to 6 wt %, MgO 2 to 5 wt %, CaO 1 to 10 wt %, SrO 0 to 6.5 wt %, BaO 0 to 2 wt %, MgO + CaO + SrO + BaO 10 to 17 wt %, ZrO2 0 to 7 wt %, and Na2O + K2O 7 to 15 wt %.
摘要翻译：用于基材组成的基材的玻璃

22. 发明授权

US07838136B2 Glass for information recording media substrate, glass substrate for magnetic disk and magnetic disk 失效
标题翻译：用于信息记录介质基板的玻璃，用于磁盘和磁盘的玻璃基板
公开(公告)号：US07838136B2
公开(公告)日：2010-11-23
申请号：US12256172
申请日：2008-10-22
申请人： Tetsuya Nakashima , Kei Maeda , Noriaki Shimodaira , Atsuyoshi Takenaka
发明人： Tetsuya Nakashima , Kei Maeda , Noriaki Shimodaira , Atsuyoshi Takenaka
IPC分类号： G11B5/73 , C03C3/087
CPC分类号： G11B5/7315 , C03C3/083 , C03C3/085 , C03C4/20 , Y10T428/31 , Y10T428/315
摘要： To provide a glass for an information recording media substrate, which is excellent in weather resistance.A glass for an information recording media substrate, which comprises, as represented by mol % based on oxide, from 61 to 66% of SiO2, from 11.5 to 17% of Al2O3, from 8 to 16% of Li2O, from 2 to 8% of Na2O, from 2.5 to 8% of K2O, from 0 to 6% of MgO, from 0 to 4% of TiO2 and from 0 to 3% of ZrO2, provided that Al2O3+MgO+TiO2 is at least 12%, and Li2O+Na2O+K2O is from 16 to 23%, wherein in a case of where B2O3 is contained, its content is less than 1%. The above glass for an information recording media substrate, wherein when the glass is left under steam atmosphere at 120° C. at 0.2 MPa for 20 hours, and the amount of Li, the amount of Na and the amount of K, which precipitate on a surface of the glass are represented as CLi, CNa and CK respectively, CNa is at most 0.7 nmol/cm2, and CLi+CNa+CK is at most 3.5 nmol/cm2.
摘要翻译：提供耐候性优异的信息记录介质基板用玻璃。用于信息记录介质基板的玻璃，其以氧化物的摩尔％表示，SiO 2的61至66％，Al 2 O 3的11.5至17％，Li 2 O的8至16％，2至8重量％的Na 2 O，2.5〜8％的K 2 O，0〜6％的MgO，0〜4％的TiO 2和0〜3％的ZrO 2，条件是Al 2 O 3 + MgO + TiO 2为至少12％，Li 2 O + Na 2 O + K 2 O为16〜23％，其中，在含有B 2 O 3的情况下，其含量小于1％。上述用于信息记录介质基板的玻璃，其中当玻璃在蒸气气氛中在120℃下在0.2MPa下放置20小时时，并且Li的量，Na的量和沉淀的K的量玻璃的表面分别表示为CLi，CNa和CK，CNa为0.7nmol / cm 2以下，CLi + CNa + CK为3.5nmol / cm 3以下。

23. 发明授权

US06313052B1 Glass for a substrate 有权
标题翻译：用于基材的玻璃
公开(公告)号：US06313052B1
公开(公告)日：2001-11-06
申请号：US09256213
申请日：1999-02-24
申请人： Tetsuya Nakashima , Kei Maeda , Yasumasa Nakao
发明人： Tetsuya Nakashima , Kei Maeda , Yasumasa Nakao
IPC分类号： C03C3085
CPC分类号： H01L31/03921 , C03C3/085 , C03C3/087 , H01J17/16 , H01J2217/49264 , H01L31/0392 , Y02E10/50
摘要： A glass for a substrate, having an average thermal expansion coefficient in the range of from 60×10−7 to 75×10−7/° C. at 50 to 350° C., which consists essentially of the following composition expressed by wt %: wt % SiO2 more than 62 to 74, Al2O3 1 to 15, MgO 0 to 9, CaO 0 to 14, Na2O 0 to 12, K2O 0 to 13, SiO2 + Al2O3 72 to 82, MgO + CaO 5 to 24, Na2O + K2O 1 to 15, MgO + CaO + Na2O + K2O 18 to 28.
摘要翻译：用于基材的玻璃，其在50至350℃下的平均热膨胀系数在60×10-7至75×10-7 /℃的范围内，其基本上由以wt％表示的以下组成组成：

24. 发明授权

US08580411B2 Glass for substrate, and glass substrate 有权
标题翻译：玻璃基板和玻璃基板
公开(公告)号：US08580411B2
公开(公告)日：2013-11-12
申请号：US13271322
申请日：2011-10-12
申请人： Jun Endo , Tetsuya Nakashima , Atsuyoshi Takenaka
发明人： Jun Endo , Tetsuya Nakashima , Atsuyoshi Takenaka
IPC分类号： G11B5/73 , C03C3/083
CPC分类号： G11B5/7315 , C03C3/083 , C03C3/087
摘要： To provide glass to be used for a substrate which is, as a substrate, less susceptible to surface roughening even if subjected to cleaning by means of a strongly acidic solution.Glass for a substrate, which comprises, as represented by mol % based on the following oxides, from 62.5 to 69% of SiO2, from 9 to 15.5% of Al2O3, from 8 to 16 of Li2O, from 0 to 8% of Na2O, from 0 to 7% of K2O and from 0 to 3.5% of ZrO2, provided that SiO2—Al2O3 is at least 53.3%, Li2O+Na2O+K2O is from 17 to 24%, and the total of contents of the above six components is at least 97%.
摘要翻译：为了提供用作基板的玻璃，作为基板，即使经受强酸溶液的清洗也不太容易受到表面粗糙化的影响。用于底物的玻璃，其以由以下氧化物的摩尔％表示，为62.5至69％的SiO 2，9至15.5％的Al 2 O 3，8至16的Li 2 O，0至8％的Na 2 O， 0〜7％的K 2 O和0〜3.5％的ZrO 2，只要SiO 2 -Al 2 O 3为至少53.3％，Li 2 O + Na 2 O + K 2 O为17〜24％，上述6种成分的总和为至少97％。

25. 发明授权

US08349476B2 Glass substrate for information recording medium and magnetic disk 有权
标题翻译：用于信息记录介质和磁盘的玻璃基板
公开(公告)号：US08349476B2
公开(公告)日：2013-01-08
申请号：US12909221
申请日：2010-10-21
申请人： Jun Endo , Tetsuya Nakashima
发明人： Jun Endo , Tetsuya Nakashima
IPC分类号： G11B5/706 , C03B37/014 , C03B37/00
CPC分类号： G11B5/7315 , C03C3/083
摘要： To provide a process to improve acid resistance of a glass substrate for an information recording medium. A process for producing the glass substrate for an information recording medium, includes processing a glass formed into a plate by a float process, a down-draw method or a press method, wherein, in cooling the glass at the last step the glass has a temperature of at least its strain point, the time during which the glass temperature is at least its strain point and at most a temperature where the glass viscosity is 1010dPa·s is at least 13 minutes.
摘要翻译：提供一种提高信息记录介质的玻璃基板耐酸性的方法。一种用于信息记录介质的玻璃基板的制造方法，其特征在于，包括通过浮法加工形成板的玻璃，下拉法或压制法，其中，在最后一步冷却玻璃时，玻璃具有至少其应变点的温度，玻璃温度至少为其应变点的时间，以及至多玻璃粘度为1010dPa·s的温度为至少13分钟。

26. 发明申请

US20110159318A1 GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM AND MAGNETIC DISK 审中-公开
标题翻译：用于信息记录介质和磁盘的玻璃基板
公开(公告)号：US20110159318A1
公开(公告)日：2011-06-30
申请号：US12959726
申请日：2010-12-03
申请人： Jun ENDO , Tetsuya Nakashima
发明人： Jun ENDO , Tetsuya Nakashima
IPC分类号： G11B5/735
CPC分类号： G11B5/7315 , C03B17/064 , C03B18/02 , C03B21/02 , C03B23/023 , C03C3/087 , C03C3/093 , C03C3/11
摘要： A glass substrate for an information recording medium, comprising an alkali aluminosilicate glass, wherein the β—OH value is at least 0.20 mm−1.
摘要翻译：一种用于信息记录介质的玻璃基板，包括碱铝硅酸盐玻璃，其中所述的-OH值为至少0.20mm-1。

27. 发明申请

US20110008649A1 GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM AND METHOD FOR MANUFACTURING THE SAME, AND MAGNETIC RECORDING MEDIUM 失效
标题翻译：用于信息记录介质的玻璃基板及其制造方法和磁记录介质
公开(公告)号：US20110008649A1
公开(公告)日：2011-01-13
申请号：US12833410
申请日：2010-07-09
申请人： Masahiko TAMURA , Toru Momose , Katsuaki Miyatani , Tetsuya Nakashima
发明人： Masahiko TAMURA , Toru Momose , Katsuaki Miyatani , Tetsuya Nakashima
IPC分类号： G11B5/73 , B24B7/24 , B24B1/00 , G11B5/84
CPC分类号： G11B5/8404 , B24B37/042 , B24B37/08 , C03C19/00 , G11B5/7315
摘要： The present invention relates to a method for manufacturing a glass substrate for information recording medium, the method including: a lapping step of lapping a circular glass plate made of an alkali aluminosilicate glass; and a subsequent cerium oxide polishing step of polishing the circular glass plate with a slurry containing a cerium oxide abrasive, in which a difference (SiO2−Al2O3) obtained by subtracting an Al2O3 content from an SiO2 content in the alkali aluminosilicate glass is 62% by mole or less; and in which the method further includes: subsequently to the cerium oxide polishing step, a cleaning step of cleaning the circular glass plate with a cleaning liquid having a sulfuric acid concentration of 20% by mass or more and 80% by mass or less and a hydrogen peroxide concentration of 1% by mass or more and 10% by mass or less at a liquid temperature of 50° C. or higher and 100° C. or lower, and after the cleaning step, a finish polishing step of polishing a main surface of the circular glass plate with a slurry containing a colloidal silica abrasive.
摘要翻译：本发明涉及一种用于信息记录介质的玻璃基板的制造方法，该方法包括：研磨由铝硅酸铝玻璃制成的圆形玻璃板的研磨步骤; 以及后续的氧化铈抛光步骤，用含有氧化铈磨料的浆料研磨圆形玻璃板，其中通过从碱性铝硅酸盐玻璃中的SiO 2含量减去Al 2 O 3含量而得到的差异（SiO 2 -Al 2 O 3）为62％摩尔或更少; 该方法还包括：随后的氧化铈抛光步骤，用硫酸浓度为20质量％以上且80质量％以下的清洗液清洗圆形玻璃板的清洗工序，过氧化氢浓度在50℃以上且100℃以下的液温下为1质量％以上且10质量％以下，在清洗工序后，对主体进行研磨的精抛光工序具有含有胶体二氧化硅研磨剂的浆料的圆形玻璃板的表面。

28. 发明申请

US20130011650A1 GLASS FOR CHEMICAL TEMPERING AND GLASS PLATE FOR DISPLAY DEVICE 有权
标题翻译：用于显示器件的化学温度和玻璃板的玻璃
公开(公告)号：US20130011650A1
公开(公告)日：2013-01-10
申请号：US13619290
申请日：2012-09-14
申请人： Shusaku Akiba , Kazutaka Ono , Jun Endo , Shigeki Sawamura , Tetsuya Nakashima , Yuichi Kuroki
发明人： Shusaku Akiba , Kazutaka Ono , Jun Endo , Shigeki Sawamura , Tetsuya Nakashima , Yuichi Kuroki
IPC分类号： C03C3/083 , C03C3/087 , B32B17/06 , C03C3/085
CPC分类号： C03C3/087 , C03C3/085 , C03C21/002 , C03C23/007 , G02F2001/133302
摘要： To provide glass to be used for chemically tempered glass which is hardly broken even when flawed.Glass for chemical tempering, which comprises, as represented by mole percentage based on the following oxides, from 65 to 85% of SiO2, from 3 to 15% of Al2O3, from 5 to 15% of Na2O, from 0 and less than 2% of K2O, from 0 to 15% of MgO and from 0 to 1% of ZrO2, and has a total content SiO2+Al2O3 of SiO2 and Al2O3 of at most 88%.
摘要翻译：提供用于化学钢化玻璃的玻璃，即使有缺陷也难以破损。用于化学回火的玻璃，其包含以下列氧化物的摩尔百分数表示，65％至85％的SiO 2，3至15％的Al 2 O 3，5至15％的Na 2 O，0和小于2％的K 2 O，0〜15％的MgO和0〜1％的ZrO 2，SiO 2和Al 2 O 3的SiO 2 + Al 2 O 3的总含量为88％以下。

29. 发明授权

US08328602B2 Glass substrate for information recording medium and method for manufacturing the same, and magnetic recording medium 失效
标题翻译：用于信息记录介质的玻璃基板及其制造方法和磁记录介质
公开(公告)号：US08328602B2
公开(公告)日：2012-12-11
申请号：US12833410
申请日：2010-07-09
申请人： Masahiko Tamura , Toru Momose , Katsuaki Miyatani , Tetsuya Nakashima
发明人： Masahiko Tamura , Toru Momose , Katsuaki Miyatani , Tetsuya Nakashima
IPC分类号： C03B27/00 , B24C3/08 , G11B9/04
CPC分类号： G11B5/8404 , B24B37/042 , B24B37/08 , C03C19/00 , G11B5/7315
摘要： The present invention relates to a method for manufacturing a glass substrate for information recording medium, the method including: a lapping step of lapping a circular glass plate made of an alkali aluminosilicate glass; and a subsequent cerium oxide polishing step of polishing the circular glass plate with a slurry containing a cerium oxide abrasive, in which a difference (SiO2−Al2O3) obtained by subtracting an Al2O3 content from an SiO2 content in the alkali aluminosilicate glass is 62% by mole or less; and in which the method further includes: subsequently to the cerium oxide polishing step, a cleaning step of cleaning the circular glass plate with a cleaning liquid having a sulfuric acid concentration of 20% by mass or more and 80% by mass or less and a hydrogen peroxide concentration of 1% by mass or more and 10% by mass or less at a liquid temperature of 50° C. or higher and 100° C. or lower, and after the cleaning step, a finish polishing step of polishing a main surface of the circular glass plate with a slurry containing a colloidal silica abrasive.
摘要翻译：本发明涉及一种用于信息记录介质的玻璃基板的制造方法，该方法包括：研磨由铝硅酸铝玻璃制成的圆形玻璃板的研磨步骤; 以及后续的氧化铈抛光步骤，用含有氧化铈磨料的浆料研磨圆形玻璃板，其中通过从碱性铝硅酸盐玻璃中的SiO 2含量减去Al 2 O 3含量而得到的差异（SiO 2 -Al 2 O 3）为62％摩尔或更少; 该方法还包括：随后的氧化铈抛光步骤，用硫酸浓度为20质量％以上且80质量％以下的清洗液清洗圆形玻璃板的清洗工序，过氧化氢浓度在50℃以上且100℃以下的液温下为1质量％以上且10质量％以下，在清洗工序后，对主体进行研磨的精抛光工序具有含有胶体二氧化硅研磨剂的浆料的圆形玻璃板的表面。

30. 发明申请

US20120264585A1 METHOD FOR PRODUCING CHEMICALLY TEMPERED GLASS, AND GLASS FOR CHEMICAL TEMPERING 审中-公开
标题翻译：用于生产化学玻璃的方法和用于化学温度的玻璃
公开(公告)号：US20120264585A1
公开(公告)日：2012-10-18
申请号：US13419115
申请日：2012-03-13
申请人： Seiki OHARA , Kazutaka Ono , Tetsuya Nakashima
发明人： Seiki OHARA , Kazutaka Ono , Tetsuya Nakashima
IPC分类号： C03C3/085 , C03C21/00 , C03C3/087
CPC分类号： C03C3/087 , C03C3/085 , C03C4/18 , C03C21/002 , C03C2204/00
摘要： To provide a method for producing chemically tempered glass, whereby the chemical tempering can be done at a low temperature and in a short time. A method for producing chemically tempered glass, which comprises chemically tempering glass for chemical tempering, comprising, as represented by mole percentage based on the following oxides, from 60 to 75% of SiO2, from 5 to 15% of Al2O3, from 1 to 12% of MgO, from 0 to 3% of CaO, from 0 to 3% of ZrO2, from 10 to 20% of Li2O, from 0 to 8% of Na2O and from 0 to 5% of K2O, and having a total content R2O of Li2O, Na2O and K2O of at most 25%, and a ratio Li2O/R2O of the Li2O content to R2O of from 0.5 to 1.0.
摘要翻译：为了提供一种生产化学钢化玻璃的方法，由此化学回火可以在低温和短时间内进行。一种生产化学钢化玻璃的方法，其包括用于化学回火的化学回火玻璃，其包含以下列氧化物的摩尔百分比表示：60至75％的SiO 2，5至15％的Al 2 O 3，1至12 0％〜3％的CaO，0〜3％的ZrO 2，10〜20％的Li 2 O，0〜8％的Na 2 O和0〜5％的K 2 O，总含量为R2O 的Li 2 O，Na 2 O和K 2 O的含量为25％以下，Li 2 O的含量与R 2 O的比Li2O / R2O为0.5〜1.0。

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