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1. 发明专利

JP2011246290A Glass substrate 有权
标题翻译：玻璃基板
公开(公告)号：JP2011246290A
公开(公告)日：2011-12-08
申请号：JP2010117855
申请日：2010-05-21
申请人： Ohara Inc , 株式会社オハラ
发明人： YAGI TOSHITAKE , GOTO NAOYUKI
IPC分类号： C03C3/085 , C03C3/087 , C03C3/091 , C03C3/093 , C03C3/097 , G11B5/73
摘要： PROBLEM TO BE SOLVED: To provide a glass substrate in which surface cleanliness is required on a high level as various apparatus applications, especially, a glass substrate for an information recording medium which has various physical properties demanded as an information recording medium substrate application of a next generation represented by a perpendicular magnetic recording method or the like, controls a head crash produced by contamination sticking to a substrate surface to correspond to a high density, and makes good recording and reproducing characteristics after media deposition; and to provide a substrate for an information recording medium having high fracture toughness, and a glass material which excels in processability for the substrate, in which heat resistance is high to correspond to HAMR which may be needed in a future record density increase, and which is suitable for a direct press method which can carry out a thin plate processing of a molten glass by low cost.SOLUTION: The glass substrate is characterized in that a zeta potential of the surface which is measured using an aqueous solution in which NaSOis mixed as a buffer agent, and the pH is adjusted to 10 by HSOand NaOH shows a lower value than -50 mV.
摘要翻译：要解决的问题：为了提供要求具有各种物理性质的信息记录介质的玻璃基板作为信息记录介质基板的各种装置应用，提供高水平地需要表面清洁度的玻璃基板施加由垂直磁记录方法等表示的下一代控制由粘附在基板表面上的污染产生的头部碰撞，以对应于高密度，并且在介质沉积之后具有良好的记录和再现特性; 并且提供了具有高断裂韧性的信息记录介质的基板和对于基板的加工性优异的玻璃材料，其耐热性高以对应于将来记录密度增加可能需要的HAMR，并且其中适用于可以以低成本进行熔融玻璃的薄板加工的直接压制方法。解决方案：玻璃基板的特征在于使用其中Na 2 SO 的水溶液测量的表面的ζ电位将4 作为缓冲剂混合，并通过H 2 SBB =“POST”> 4 和NaOH调节pH至10。显示低于-50 mV的值。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2010006674A Method and apparatus for manufacturing glass molded body 有权
标题翻译：制造玻璃模体的方法和装置
公开(公告)号：JP2010006674A
公开(公告)日：2010-01-14
申请号：JP2008171139
申请日：2008-06-30
申请人： Ohara Inc , 株式会社オハラ
发明人： KISHI TAKAYUKI , GOTO NAOYUKI , UMEDA MINORU , SATO NAOTO , OKANO HIROSHI
IPC分类号： C03B5/187 , C03B5/027 , C03B5/24 , C03B5/43
CPC分类号： C03B5/0275 , C03B3/00 , C03B5/187 , C03B5/235 , C03B5/43 , C03B19/02
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a glass molded body which is adaptable to the molding of a large volume glass block and can sufficiently improve the homogeneity of the glass, and to provide an apparatus for manufacturing the glass molded body. SOLUTION: The apparatus 10 of manufacturing the glass molded body is provided with: a melting vessel 20 which stores a molten liquid of a raw material and has a plurality of electrodes 21a, 21'a immersed in the molten liquid; a feeder 30 which is communicated with the melting vessel 20; a heating part 40 which is provided at the upper part of the molting vessel 20; a mold 50 for molding the molten glass derived from the feeder 30; and a stirring body 60 insertable into or removable from the inside of the melting vessel 20. The molten glass is produced by conduction-heating the molten liquid by passing current between the plurality of the electrodes 21a and 21'a, further heating the molten liquid from the upper side of the molten liquid by the heating part 40 to melt the raw material and after that, inserting the stirring body 60 into the inside of the molting vessel 20 from the outside to stir the molten liquid with the stirring body 60. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：提供一种适用于大容量玻璃块的成型的玻璃成形体的制造方法，能够充分地提高玻璃的均匀性，提供一种玻璃成形体的制造装置身体。解决方案：制造玻璃成型体的装置10设有：熔融容器20，其储存原料的熔融液体，并且具有浸入熔融液体中的多个电极21a，21'a; 与熔化容器20连通的进料器30; 设在蜕皮槽20的上部的加热部40; 用于模制来自进料器30的熔融玻璃的模具50; 搅拌体60可以从熔融容器20的内部插入或移出。熔融玻璃是通过在多个电极21a和21'a之间通过电流来传导加热熔融液而制成的，进一步加热熔融液体从熔融液体的上侧通过加热部40熔化原料，然后将搅拌体60从外部插入蜕皮容器20的内部，用搅拌体60搅拌熔融液体。 P>版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2008254984A Inorganic composition article 有权
标题翻译：无机组合物
公开(公告)号：JP2008254984A
公开(公告)日：2008-10-23
申请号：JP2007101180
申请日：2007-04-06
申请人： Ohara Inc , 株式会社オハラ
发明人： GOTO NAOYUKI , YAGI TOSHITAKE
IPC分类号： C03C10/04 , C03B27/00 , C03B32/02 , C03C10/14 , C03C21/00 , G11B5/73 , G11B5/82
CPC分类号： C03B32/00 , C03B27/02 , C03C10/0045 , G11B5/7315 , H05K1/0306
摘要： PROBLEM TO BE SOLVED: To provide an inorganic composition article for use in an information recording medium disk substrate or the like, which has good surface properties for sufficiently coping with the ramp load system for high density recording in both of an in-plane magnetic recording system and a perpendicular magnetic recording system, high strength withstanding high speed rotation and impact, both of heat expansion property consistent with each drive member and heat resistance, and a low melting point, and whose productivity is high.
SOLUTION: The inorganic composition article comprises a Li
2 O component and an Al
2 O
3 component, wherein the mass percentage ratio of Li
2 O to Al
2 O
3 is ≥0.3, and at least one crystal phase, and has a compressive stress layer on its surface.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于信息记录介质盘基板等中的无机组合物制品，其具有良好的表面性能，用于充分地应付用于高密度记录的斜面负载系统，平面磁记录系统和垂直磁记录系统，高强度耐受高速旋转和冲击，与每个驱动构件一致的热膨胀性能和耐热性，以及低熔点，并且其生产率高。解决方案：无机组合物制品包含Li SB 2 O 3组分和Al SB 2 O 3 SB 3组分，其中质量百分比其中，至少一个结晶相，并且在其表面上具有压应力层。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2008094644A Method for producing glass and glass molding device 有权
标题翻译：生产玻璃和玻璃成型装置的方法
公开(公告)号：JP2008094644A
公开(公告)日：2008-04-24
申请号：JP2006276120
申请日：2006-10-10
申请人： Ohara Inc , 株式会社オハラ
发明人： GOTO NAOYUKI , SATO NAOTO , KISHI TAKAYUKI
IPC分类号： C03B19/02
CPC分类号： C03B19/02
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a glass where a large-sized glass is produced in such a manner that the temperature distribution between the central part and the side wall sides in a molding die (the temperature distribution between the vicinity of the central part and the vicinity of the side walls in a molten glass in the molding die in a cooling process till vitrifying) is controlled to ±150°C, and to provide a glass molding device used for the production method.
SOLUTION: The method for producing a glass comprises: a stage where a molten glass in a melting furnace is passed into a pipe fixed with a heat insulating member for preventing heat radiation of the molten glass, and the molten glass is made to flow into a molding die covered with a member having low thermal conductivity to the lower part of the heat insulating member; and a stage where the spacing between the lower part of the heat insulating member and the liquid surface of the molten glass made to flow into the molding die is made fixed.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造大尺寸玻璃的玻璃的方法，使得在成型模具中的中心部分和侧壁侧之间的温度分布（温度分布在在成型模具中的熔融玻璃中的中心部分附近和玻璃化附近的侧壁附近）控制在±150℃，并提供用于制造方法的玻璃成型装置。解决方案：玻璃的制造方法包括：将熔融炉内的熔融玻璃通入固定有隔热部件的配管，防止熔融玻璃的散热的阶段，将熔融玻璃制成流入到具有低导热性的构件的模制模具中，并被隔热构件的下部流动; 并且使得绝热构件的下部与制成流入成形模具的熔融玻璃的液面之间的间隔被固定的阶段。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2007223884A Inorganic composition 审中-公开
标题翻译：无机组合物
公开(公告)号：JP2007223884A
公开(公告)日：2007-09-06
申请号：JP2006260428
申请日：2006-09-26
申请人： Ohara Inc , 株式会社オハラ
发明人： GOTO NAOYUKI , YAGI TOSHITAKE , KISHI TAKAYUKI
IPC分类号： C03C10/14 , C03B32/02 , C03C10/04 , G11B5/73
CPC分类号： Y02P40/57
摘要： PROBLEM TO BE SOLVED: To provide an inorganic composition for use in information recording medium disc substrate which has an excellent surface property sufficiently corresponding to a ramp load system for high density recording in both of the horizontal magnetic recording system and perpendicular magnetic recording system, high strength durable to high speed rotation, both of heat expansion property and heat resistance suitable with each drive component, a low melting point, and high productivity. SOLUTION: The inorganic composition contains one or more crystal phases selected from the group consisting of α-quartz (α-SiO 2 ), lithium disilicate (Li 2 Si 2 O 5 ) and lithium monosilicate (Li 2 SiO 3 ) or contains one crystal phase of at least lithium monosilicate (Li 2 SiO 3 ). The average particle diameter of particles each showing a crystal phase, contained in the inorganic composition, is 1 μm or less. The inorganic composition has a ring flexural strength of 300 MPa or more, and a surface roughness Ra (an arithmetic average roughness) after being polished of 10 Å or less. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于信息记录介质盘基片的无机组合物，其具有与水平磁记录系统和垂直磁记录两者中的高密度记录的斜坡载荷系统充分对应的表面性能优异系统，高强度耐高速旋转，适用于每个驱动部件的热膨胀性能和耐热性，低熔点和高生产率。解决方案：无机组合物含有一种或多种选自α-石英（α-SiO 2 ），二硅酸锂（Li 2 Si 或单独硅酸锂（Li 2 SiO 3 ），或含有至少一个锂的一个结晶相单硅酸盐（Li

6. 发明专利

JP2013020692A Manufacturing method of substrate for information recording medium 有权
标题翻译：信息记录介质基板的制造方法
公开(公告)号：JP2013020692A
公开(公告)日：2013-01-31
申请号：JP2012147466
申请日：2012-06-29
申请人： Ohara Inc , 株式会社オハラ
发明人： YAMASHITA YUTAKA , YAGI TOSHITAKE , GOTO NAOYUKI
IPC分类号： G11B5/84 , B24B7/24 , B24B37/00 , G11B5/73
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of processing a material with high mechanical strength into a highly accurate surface texture required for a substrate used in a next generation hard disk, at low cost, by a polishing process to obtain the same polishing effect as using cerium oxide, as an alternative cerium oxide for a free abrasive grain in a polishing liquid.SOLUTION: A manufacturing method of a substrate for an information recording medium is a manufacturing method of a substrate for an information recording medium comprising a polishing process for polishing a plate-like inorganic material consisting of a glass or crystallized glass containing at least SiOcomponent by using a polishing liquid and a polishing pad. The polishing liquid at least contains an abrasive grain consisting of a compound containing Zr and Si, and an abrasive grain concentration in the polishing liquid is in the range of 15 wt% to 40 wt% at the start of polishing, and the content of the abrasive grain consisting of a compound containing Zr and Si is 70 wt% or more with respect to the total weight of the abrasive grains in the polishing liquid.
摘要翻译：解决的问题：为了提供一种以低成本将具有高机械强度的材料加工成用于下一代硬盘的基板所需的高精度表面纹理的制造方法，通过抛光工艺获得与使用氧化铈相同的抛光效果，作为抛光液中游离磨粒的替代氧化铈。解决方案：用于信息记录介质的基板的制造方法是用于信息记录介质的基板的制造方法，其包括用于抛光由玻璃或结晶玻璃构成的板状无机材料的抛光工艺，所述玻璃或结晶玻璃至少包含通过使用抛光液和抛光垫，SiO 2 成分。抛光液至少含有由含Zr和Si的化合物构成的磨粒，研磨液的磨粒浓度在研磨开始时为15重量％〜40重量％，其含量由含有Zr和Si的化合物组成的磨粒相对于研磨液中的磨粒的总重量为70重量％以上。版权所有（C）2013，JPO＆INPIT

7. 发明专利

JP2011156646A Glass substrate manufacturing method 审中-公开
标题翻译：玻璃基板制造方法
公开(公告)号：JP2011156646A
公开(公告)日：2011-08-18
申请号：JP2010022578
申请日：2010-02-03
申请人： Ohara Inc , 株式会社オハラ
发明人： YAMASHITA YUTAKA , GOTO NAOYUKI , SHOJI SHIRO , OSHIRO RIICHI
IPC分类号： B24B37/00 , B24B7/24 , C03C19/00 , G11B5/73 , G11B5/84
CPC分类号： G11B5/8404 , B24B7/26 , B24B37/08 , C03C19/00 , C03C2204/08
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method for machining a glass substrate with a high mechanical strength required for the glass substrate used for a next-generation hard disk, inexpensively and into a highly precise shape, by finding out a polishing method for the glass substrate, suppressing the decrease of a machining rate even when a plurality of batches of polishing are performed. SOLUTION: In the method of manufacturing the glass substrate, a glass plate as a workpiece is held between an upper surface plate and a lower surface plate via polishing pads, and the polishing pads and the glass plate are moved relative to each other, so as to polish the glass plate. The method includes: a normal polishing step for polishing while circulating and feeding a polishing liquid, which is stored in a tank and in which abrasive grains are contained; and a rinsing step while stopping the circulation and the feed of the polishing liquid containing the abrasive grains and moving the polishing pads and the glass plate relative to each other while feeding a rinsing liquid containing no abrasive grains. At least a part of the rinsing liquid having been used in the rinsing step is fed to the tank of the polishing liquid containing the abrasive grains. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种制造方法，其通过找到抛光来提供用于下一代硬盘所用玻璃基板所需的高机械强度的玻璃基板的制造方法，其成本低廉并且成为高精度的形状即使进行多次研磨，也抑制了加工速度的降低。解决方案：在制造玻璃基板的方法中，通过抛光垫将作为工件的玻璃板保持在上表面板和下表面板之间，并且抛光垫和玻璃板相对于彼此移动，以便抛光玻璃板。该方法包括：正常的抛光步骤，用于在循环和进料存储在罐中并且其中包含磨料颗粒的抛光液体上进行抛光; 以及冲洗步骤，同时停止包含磨粒的抛光液的循环和进给，并且在喂入不含磨粒的漂洗液体的同时相对于彼此移动抛光垫和玻璃板。已经在冲洗步骤中使用的冲洗液的至少一部分被供给到含有磨粒的抛光液体的槽中。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2013020693A Manufacturing method of substrate for information recording medium 有权
标题翻译：信息记录介质基板的制造方法
公开(公告)号：JP2013020693A
公开(公告)日：2013-01-31
申请号：JP2012147467
申请日：2012-06-29
申请人： Ohara Inc , 株式会社オハラ
发明人： YAMASHITA YUTAKA , YAGI TOSHITAKE , GOTO NAOYUKI
IPC分类号： G11B5/84 , B24B37/00 , B24B37/005 , G11B5/73
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of processing a material with high mechanical strength into a highly accurate surface texture required for a substrate used in a next generation hard disk, at low cost, by a polishing process to obtain the same polishing effect as using cerium oxide, as an alternative cerium oxide for a free abrasive grain in a polishing liquid.SOLUTION: A manufacturing method of a substrate for an information recording medium is a manufacturing method of a substrate for an information recording medium comprising a polishing process for polishing a plate-like inorganic material consisting of a glass or crystallized glass containing at least SiOcomponent by using a polishing liquid and a polishing pad. The polishing liquid at least contains an abrasive grain consisting of a compound containing Zr and Si, an abrasive grain concentration in the polishing liquid is in the range of 2 wt% to 40 wt%, the content of the abrasive grain consisting of a compound containing Zr and Si is 70 wt% or more with respect to the total weight of the abrasive grains in the polishing liquid, and the processing pressure in the above polishing process is 120 g/cmto 160 g/cm.
摘要翻译：解决的问题：为了提供一种以低成本将具有高机械强度的材料加工成用于下一代硬盘的基板所需的高精度表面纹理的制造方法，通过抛光工艺获得与使用氧化铈相同的抛光效果，作为抛光液中游离磨粒的替代氧化铈。解决方案：用于信息记录介质的基板的制造方法是用于信息记录介质的基板的制造方法，其包括用于抛光由玻璃或结晶玻璃组成的板状无机材料的抛光工艺，所述玻璃或结晶玻璃至少包含通过使用抛光液和抛光垫，SiO 2 成分。抛光液至少含有由含有Zr和Si的化合物构成的磨粒，研磨液中的磨粒浓度在2重量％〜40重量％的范围内，磨粒的含量由含有 Zr和Si相对于研磨液中的磨粒的总重量为70重量％以上，上述研磨工序中的处理压力为120g / cm 2。SP SP =“POST”> 2 至160g / cm 2 SP SP =“POST”> 2 。版权所有（C）2013，JPO＆INPIT

9. 发明专利

JP2013020688A Manufacturing method of substrate for information recording medium 有权
标题翻译：信息记录介质基板的制造方法
公开(公告)号：JP2013020688A
公开(公告)日：2013-01-31
申请号：JP2011167701
申请日：2011-07-29
申请人： Ohara Inc , 株式会社オハラ
发明人： YAMASHITA YUTAKA , YAGI TOSHITAKE , GOTO NAOYUKI
IPC分类号： G11B5/84 , B24B37/00 , G11B5/73
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of processing a material with high mechanical strength into a highly accurate surface texture required for a substrate used in a next generation hard disk, at low cost, by a polishing process to obtain the same polishing effect as using cerium oxide, as an alternative cerium oxide for a free abrasive grain in a polishing liquid.SOLUTION: A manufacturing method of a substrate for an information recording medium comprises a polishing process for polishing a plate-like inorganic material containing at least SiOcomponent by using a polishing liquid and a polishing pad. The above polishing liquid at least contains polishing abrasive grain consisting of a compound containing Zr and Si, and an abrasive grain concentration in the polishing liquid is in the range of 2 wt% to 40 wt%.
摘要翻译：解决的问题：为了提供一种以低成本将具有高机械强度的材料加工成用于下一代硬盘的基板所需的高精度表面纹理的制造方法，通过抛光工艺获得与使用氧化铈相同的抛光效果，作为抛光液中游离磨粒的替代氧化铈。解决方案：用于信息记录介质的基板的制造方法包括通过使用抛光来研磨含有至少SiO 2 成分的板状无机材料的抛光工艺液体和抛光垫。上述研磨液至少包含由含有Zr和Si的化合物构成的抛光磨粒，研磨液中的磨粒浓度在2重量％〜40重量％的范围内。版权所有（C）2013，JPO＆INPIT

10. 发明专利

JP2012146392A Method for manufacturing substrate for information recording medium 审中-公开
标题翻译：用于制造信息记录介质的基板的方法
公开(公告)号：JP2012146392A
公开(公告)日：2012-08-02
申请号：JP2012093865
申请日：2012-04-17
申请人： Ohara Inc , 株式会社オハラ
发明人： GOTO NAOYUKI , YAGI TOSHITAKE , YAMASHITA YUTAKA
IPC分类号： G11B5/84 , C03C3/085 , C03C3/087 , C03C19/00 , G11B5/73
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing, at low costs, a substrate for an information recording medium having various physical properties required as applications for a next-generation information recording medium substrate represented by a perpendicular magnetic recording system and the like and especially having high fracture toughness and a smooth surface.SOLUTION: A method for manufacturing a substrate for an information recording medium comprises a process of preparing plate-like amorphous glass containing an SiOcomponent, an AlOcomponent, and an R'O component (provided that R' is one or more kinds among Li, Na, and K) and a step of polishing the plate-shaped glass material. The polishing step only comprises a step of polishing the amorphous glass with a diamond pad. If a target thickness after the final polishing step is defined as t1 and a thickness of the amorphous glass during processing is defined as t2, in the case of t2/t1≤1.2, all of the amorphous glass is polished with the diamond pad.
摘要翻译：要解决的问题：提供一种用于以低成本制造用于具有各种物理性质的信息记录介质的基板的方法，所述物理特性作为由垂直磁记录系统表示的下一代信息记录介质基板的应用，特别是具有高的断裂韧性和光滑的表面。解决方案：用于信息记录介质的基板的制造方法包括制备含有SiO 2 组分的板状非晶玻璃的工艺，Al 2 O 3 组件，以及R' 2 O组件 Li，Na和K中的一种或多种）和抛光该板状玻璃材料的步骤。抛光步骤仅包括用金刚石衬垫抛光非晶玻璃的步骤。如果将最终抛光步骤后的目标厚度定义为t1，将加工过程中的非晶玻璃的厚度定义为t2，则在t2 /t1≤1.2的情况下，用金刚石衬垫抛光所有非晶玻璃。版权所有（C）2012，JPO＆INPIT

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