公开(公告)号：US06332338B1

公开(公告)日：2001-12-25

申请号：US09269409

申请日：1999-04-20

申请人： Kazuaki Hashimoto ,  Xuelu Zou

发明人： Kazuaki Hashimoto ,  Xuelu Zou

IPC分类号： C03B1116

CPC分类号： G11B5/7315 ,  C03C3/078 ,  C03C3/087 ,  C03C3/095 ,  G11B5/6011 ,  G11B5/82 ,  G11B5/8404 ,  G11B23/0028

摘要： Disclosed is a process for producing a glass substrate for an information recording medium by press-shaping a molten glass which gives a glass containing 0.1 to 30 mol % of TiO2, 1 to 45 mol % of CaO, 5 to 40 mol % of total of MgO and the above CaO, 3 to 30 mol % of total of Na2O and Li2O, 0 to 15 mol % of Al2O3 and 35 to 65 mol % of SiO2 and having properties of a liquidus temperature of 1,360° C. or lower and a viscosity of at least 10 poise in a shaping-allowable temperature range, or by preparing a preform formed of a glass which contains 0.1 to 30 mol % of TiO2, 1 to 45 mol % of CaO, 5 to 40 mol % of total of MgO and the above CaO, 3 to 30 mol % of total of Na2O and Li2O, 0 to 15 mol % of Al2O3 and 35 to 65 mol % of SiO2 and has properties of a liquidus temperature of 1,360° C. or lower and shaping the preform in the form of a disc by a re-heat pressing method. According to the above process, there can be mass-produced, with high productivity, high-quality glass substrates to be used for information recording media such as a magnetic disc, an optical disc, a magneto-optic disc, and the like.

摘要翻译： 公开了一种通过冲压成形熔融玻璃来制造信息记录介质用玻璃基板的方法，该熔融玻璃得到含有0.1〜30摩尔％的TiO 2，1〜45摩尔％的CaO，5〜40摩尔％ MgO和上述CaO，Na 2 O和Li 2 O的总计为3〜30摩尔％，Al 2 O 5〜15摩尔％，SiO 2为35〜65摩尔％，液相线温度为1360℃以下，粘度 在成形允许温度范围内至少10泊，或通过制备由玻璃制成的预成型体，其中含有0.1〜30摩尔％的TiO 2，1〜45摩尔％的CaO，5〜40摩尔％的MgO总量，以及 上述CaO，Na2O和Li2O合计为3〜30摩尔％，Al2O3为0〜15摩尔％，SiO 2为35〜65摩尔％，液相线温度为1360℃以下的特性， 通过再热加压法形成盘片。 根据上述过程，可以大规模生产高产量的用于信息记录介质如磁盘，光盘，磁光盘等的高品质玻璃基板。

公开(公告)号：US5997977A

公开(公告)日：1999-12-07

申请号：US90157

申请日：1998-06-04

申请人： Xuelu Zou ,  Kazuaki Hashimoto

发明人： Xuelu Zou ,  Kazuaki Hashimoto

IPC分类号： C03C3/078 ,  C03C3/087 ,  C03C3/095 ,  G11B5/60 ,  G11B5/73 ,  G11B5/82 ,  G11B23/00 ,  B32B3/00

CPC分类号： G11B5/7315 ,  C03C3/078 ,  C03C3/087 ,  C03C3/095 ,  G11B23/0028 ,  G11B5/6011 ,  G11B5/82 ,  Y10S428/913 ,  Y10T428/21

摘要： A substrate for an information recording medium is prepared from a glass substance having a Young's modulus not smaller than 100 GPa and a liquidus temperature not higher than 1350.degree. C.

摘要翻译： 用于信息记录介质的基材由杨氏模量不小于100GPa，液相线温度不高于1350℃的玻璃物质制备。

公开(公告)号：US08824248B2

公开(公告)日：2014-09-02

申请号：US13890866

申请日：2013-05-09

申请人： Naomi Matsumoto ,  Kazuaki Hashimoto

发明人： Naomi Matsumoto ,  Kazuaki Hashimoto

IPC分类号： G11B11/00 ,  G11B5/62

CPC分类号： G11B5/7315 ,  C03C3/085 ,  C03C3/087 ,  C03C17/06 ,  C03C21/00 ,  C03C21/002 ,  G11B5/73 ,  G11B5/8404 ,  G11B13/04 ,  G11B2005/0021

摘要： An aspect of the present invention relates to glass for a magnetic recording medium substrate, which includes essential components in the form of SiO2, Li2O, Na2O, and one or more alkaline earth metal oxides selected from the group consisting of MgO, CaO, SrO, and BaO, wherein a molar ratio of a content of MgO to a combined content of MgO, CaO, SrO, and BaO (MgO/(MgO+CaO+SrO+BaO)) is equal to or greater than 0.80, and which has a Young's modulus of equal to or greater than 80 GPa, and a glass transition temperature of equal to or greater than 620° C.

摘要翻译： 本发明的一个方面涉及一种用于磁记录介质基板的玻璃，其包括SiO 2，Li 2 O，Na 2 O以及一种或多种选自MgO，CaO，SrO等的一种或多种碱土金属氧化物的主要成分， 和BaO，其中MgO的含量与MgO，CaO，SrO和BaO（MgO /（MgO + CaO + SrO + BaO）的组合含量）的摩尔比等于或大于0.80，并且具有 杨氏模量等于或大于80GPa，玻璃化转变温度等于或大于620℃。

公开(公告)号：US08787980B2

公开(公告)日：2014-07-22

申请号：US13331587

申请日：2011-12-20

申请人： Kazuaki Hashimoto ,  Tomoyuki Goto ,  Mitsugu Imai ,  Tetsuo Takano

发明人： Kazuaki Hashimoto ,  Tomoyuki Goto ,  Mitsugu Imai ,  Tetsuo Takano

IPC分类号： B32B7/02

CPC分类号： C03C15/00 ,  C03C19/00 ,  C03C21/002 ,  G06F3/041

摘要： The present invention provides a glass substrate of a cover glass for a portable electronic device. The glass substrate includes a front face, a back face and an edge face. The edge face is at least partially formed by means of an etching treatment. A compressive stress layer, formed by means of an ion-exchanging method, is disposed on each of the front and back faces of the glass substrate. The compressive stress layer has the same thickness both in a planar-directional center part thereof and in a planar-directional end part thereof on each of the front and back faces of the glass substrate.

摘要翻译： 本发明提供一种用于便携式电子设备的玻璃罩的玻璃基板。 玻璃基板包括前表面，背面和边缘面。 通过蚀刻处理至少部分地形成边缘面。 通过离子交换法形成的压应力层设置在玻璃基板的前表面和后表面的每一个上。 压缩应力层在玻璃基板的正面和背面各自的面方向中心部分和平面方向的端部均具有相同的厚度。

公开(公告)号：US08462990B2

公开(公告)日：2013-06-11

申请号：US12808923

申请日：2008-10-21

申请人： Yukio Akashi ,  Kazuaki Hashimoto ,  Shogo Hayashi

发明人： Yukio Akashi ,  Kazuaki Hashimoto ,  Shogo Hayashi

IPC分类号： G06K9/00

CPC分类号： G01N25/72 ,  G01N33/383 ,  G06T7/0004 ,  G06T2207/10048 ,  G06T2207/30108 ,  G06T2207/30184

摘要： The IR camera (10) takes an IR thermal image of a surface of the structure (40). In the IR thermal image, temperature gradient is superposed besides temperature difference between non-defective and defective regions of the structure. The image processing unit (21) of the analysis unit (20) produces an image indicating distribution of a temperature variation other than a temperature gradient by extracting the distribution of the temperature variation from the IR thermal image. The image display unit (30) displays the image produced by the image processing unit (21). Since the distribution of the temperature variation other than the temperature gradient is extracted from the IR thermal image, a temperature difference between defective and non-defective regions in the structure (40) can be clearly displayed. Therefore, even if there exists a temperature gradient on the structure surface, the defect location in the structure can be easily determined.

摘要翻译： IR摄像机（10）拍摄结构（40）的表面的IR热图像。 在红外热像中，结构的无缺陷区域和缺陷区域之间的温度差除了温度梯度外， 分析单元（20）的图像处理单元（21）通过从IR热图像中提取温度变化的分布，产生指示温度梯度以外的温度变化分布的图像。 图像显示单元（30）显示由图像处理单元（21）产生的图像。 由于从IR热图像中提取除了温度梯度以外的温度变化的分布，因此可以清楚地显示结构（40）中的有缺陷区域与非缺陷区域之间的温度差。 因此，即使结构表面存在温度梯度，也可以容易地确定结构中的缺陷位置。

公开(公告)号：US5744409A

公开(公告)日：1998-04-28

申请号：US778675

申请日：1997-01-03

申请人： Kazuaki Hashimoto ,  Koichi Sato

发明人： Kazuaki Hashimoto ,  Koichi Sato

IPC分类号： C03C3/064 ,  C03C3/068 ,  C03C3/089 ,  C03C3/091 ,  C03C3/095 ,  C03C3/078 ,  C03C4/20

CPC分类号： C03C3/089 ,  C03C3/064 ,  C03C3/068 ,  C03C3/091 ,  C03C3/095 ,  Y10S501/903

摘要： An optical glass containing, as glass components, 30.about.55 wt % of SiO.sub.2, 5.about.30 wt % of B.sub.2 O.sub.3, the total amount of SiO.sub.2 and B.sub.2 O.sub.3 being 56.about.70 wt % and the SiO.sub.2 /B.sub.2 O.sub.3 weight ratio being 1.3.about.12.0, 7.about.12 wt % of Li.sub.2 O, in which 7 wt % is excluded, 0.about.5 wt % of Na.sub.2 O, 0.about.5 wt % of K.sub.2 O, the total amount of Li.sub.2 O, Na.sub.2 O and K.sub.2 O being 7 to 12 wt % in which 7 wt % is excluded, 10.about.30 wt % of BaO, 0.about.10 wt % of MgO, 0.about.20 wt % of CaO, 0.about.20 wt % of SrO, and 0.about.20 wt % of ZnO the total amount of BaO, MgO, CaO, SrO and ZnO being 10.about.30 wt %, and the total amount of SiO.sub.2, B.sub.2 O.sub.3, Li.sub.2 O and BaO being at least 72 wt %.

摘要翻译： 将玻璃成分含有30重量％SiO 2，5重量％B 2 O 3，SiO 2和B 2 O 3的总量为56重量％，SiO 2 / B 2 O 3重量比为13比6的玻璃成分的光学玻璃， 7差异12重量％的Li2O，其中排除7重量％，0分别为5重量％的Na 2 O，0分数5重量％的K 2 O，Li 2 O，Na 2 O和K 2 O的总量为7〜12重量％，其中7 重量％不包括在内，10重量％的BaO，0分别为10重量％的MgO，0分率20重量％的CaO，0分解20重量％的SrO和0分子量20重量％的ZnO BaO的总量 ，MgO，CaO，SrO和ZnO为10重量％，SiO 2，B 2 O 3，Li 2 O和BaO的总量为至少72重量％。

公开(公告)号：US09434644B2

公开(公告)日：2016-09-06

申请号：US13247627

申请日：2011-09-28

申请人： Akihiro Koyama ,  Mikiko Morishita ,  Satoshi Ami ,  Kazuaki Hashimoto ,  Tetsuo Takano

发明人： Akihiro Koyama ,  Mikiko Morishita ,  Satoshi Ami ,  Kazuaki Hashimoto ,  Tetsuo Takano

IPC分类号： C03C3/085 ,  C03C3/091 ,  C03C3/093 ,  C03C21/00 ,  C03C3/087 ,  C03C15/00 ,  C03C3/083 ,  C03C15/02

CPC分类号： C03C21/002 ,  C03C3/083 ,  C03C3/085 ,  C03C3/087 ,  C03C15/00 ,  C03C15/02

摘要： The disclosed cover glass is produced by etching a glass substrate that has been formed by a down-drawing process, and chemically strengthening the glass substrate to provide the glass substrate with a compressive-stress layer on the principal surfaces thereof. The glass substrate contains, as components thereof, 50% to 70% by mass of SiO2, 5% to 20% by mass of Al2O3, 6% to 30% by mass of Na2O, and 0% to less than 8% by mass of Li2O. The glass substrate may also contain 0% to 2.6% by mass of CaO, if necessary. The glass substrate has an etching characteristic in which the etching rate is at least 3.7 μm/minute in an etching environment having a temperature of 22° C. and containing hydrogen fluoride with a concentration of 10% by mass.

摘要翻译： 所公开的盖玻璃通过蚀刻通过下拉法形成的玻璃基板，并化学强化玻璃基板，以在玻璃基板的主表面上提供压应力层来制造。 玻璃基板作为其成分含有50〜70质量％的SiO 2，5〜20质量％的Al 2 O 3，6〜30质量％的Na 2 O，0〜8质量％ Li2O。 如果需要，玻璃基板也可以含有0〜2.6质量％的CaO。 玻璃基板具有蚀刻特性，其中在温度为22℃的蚀刻环境中蚀刻速率至少为3.7μm/分钟，并且含有浓度为10质量％的氟化氢。

公开(公告)号：US09040147B2

公开(公告)日：2015-05-26

申请号：US13451017

申请日：2012-04-19

申请人： Kazuaki Hashimoto ,  Go Chiwata ,  Dongna Qin ,  Masatomo Shibui

发明人： Kazuaki Hashimoto ,  Go Chiwata ,  Dongna Qin ,  Masatomo Shibui

IPC分类号： B32B1/00 ,  B32B3/00 ,  C03C15/00 ,  C03C21/00

CPC分类号： C03C15/00 ,  C03C21/002 ,  Y10T428/24479 ,  Y10T428/24628 ,  Y10T428/24736

摘要： A cover glass for use in a mobile device such as a touch-panel mobile telephone has a thickness in the range of, for example, 0.3 mm to 1.5 mm. A recess that can be recognized as a character or a figure when watching from the front side of the mobile device or a recess that can be recognized when touching from the front side of the mobile device is formed on at least one of opposite main surfaces of the cover glass. A surface of this recess is an etched surface treated by etching.

摘要翻译： 用于诸如触摸面板移动电话的移动设备中的盖玻璃的厚度例如在0.3mm至1.5mm的范围内。 当从移动装置的前侧观察时可以识别为字符或图形的凹部或者在从移动装置的前侧触摸时可以识别的凹部形成在至少一个相对的主表面 盖玻璃。 该凹部的表面是通过蚀刻处理的蚀刻表面。

公开(公告)号：US08840997B2

公开(公告)日：2014-09-23

申请号：US13338651

申请日：2011-12-28

申请人： Akihiro Koyama ,  Satoshi Ami ,  Kazuaki Hashimoto ,  Tetsuo Takano

发明人： Akihiro Koyama ,  Satoshi Ami ,  Kazuaki Hashimoto ,  Tetsuo Takano

IPC分类号： B32B17/06 ,  C03C21/00 ,  C03C3/085

CPC分类号： C03C3/085 ,  C03C21/002 ,  Y10T428/315

摘要： A cover glass having a compressive-stress layer on the principal surfaces thereof, and having a glass composition containing 50% to 70% by mole of SiO2, 3% to 20% by mole of Al2O3, 5% to 25% by mole of Na2O, more than 0% by mole and less than or equal to 2.5% by mole of Li2O, 0% to 5.5% by mole of K2O, and 0% to less than 3% by mole of B2O3. Also disclosed is a method for producing a cover glass which includes: (i) preparing molten glass by melting a glass raw material; (ii) forming the prepared molten glass into a plate-like shape by a down-draw process and thereby obtaining a glass substrate; and (iii) forming a compressive-stress layer on the surface of the glass substrate.

摘要翻译： 一种在其主表面上具有压应力层的玻璃玻璃，并且具有含有50〜70摩尔％的SiO 2，3〜20摩尔％的Al 2 O 3，5〜25摩尔％的Na 2 O的玻璃组合物 ，大于等于0摩尔％且小于或等于2.5摩尔％的Li 2 O，0〜5.5摩尔％的K 2 O和0〜3摩尔％以下的B 2 O 3。 还公开了一种盖玻璃的制造方法，其包括：（i）通过熔化玻璃原料来制备熔融玻璃; （ii）通过下拉法将所制备的熔融玻璃形成为板状，从而获得玻璃基板; 和（iii）在玻璃基板的表面上形成压应力层。

公开(公告)号：US08725430B2

公开(公告)日：2014-05-13

申请号：US12866510

申请日：2009-03-17

申请人： Yukio Akashi ,  Kazuaki Hashimoto ,  Shogo Hayashi

发明人： Yukio Akashi ,  Kazuaki Hashimoto ,  Shogo Hayashi

IPC分类号： G01B5/28 ,  G01N25/72

CPC分类号： G01N25/72

摘要： A correlation is preliminarily obtained between a depth of damage and a ratio between a temperature gradient in temperature distribution on a surface of an area containing the damage and a temperature difference between a maximum temperature and a minimum temperature in the temperature distribution. The temperature distribution on the surface of the area containing the damage in the structure is then measured. Once the temperature distribution on the structure surface is obtained, attention is focused on temperature distribution between two points including the damaged area, so that a temperature difference between a maximum temperature and a minimum temperature in the distribution is obtained, and further a temperature gradient of an interval exhibiting temperature variation equal to or higher than a predetermined level is obtained. The ratio between the temperature difference and the temperature gradient thus obtained is computed, and the depth of the damage corresponding to the ratio is determined based on the correlation obtained in the first step. The depth of the damage can be estimated by the processing above.

摘要翻译： 在损伤深度与包含损伤的区域的表面上的温度分布的温度梯度与温度分布中的最高温度和最低温度之间的温度差之间的比率之间预先获得相关性。 然后测量包含结构中损坏的区域的表面上的温度分布。 一旦获得了结构表面的温度分布，则注意力集中在包括损伤区域在内的两点之间的温度分布，从而获得分布中的最高温度和最低温度之间的温度差，并且进一步获得温度梯度 获得等于或高于预定水平的温度变化的间隔。 计算出如此获得的温度差和温度梯度之间的比率，并且基于在第一步骤中获得的相关性来确定与比率相对应的损伤深度。 损坏的深度可以通过上面的处理来估计。