公开(公告)号：US20050074635A1

公开(公告)日：2005-04-07

申请号：US10392248

申请日：2003-03-19

申请人： Kazuishi Mitani ,  Hiroshi Komura

发明人： Kazuishi Mitani ,  Hiroshi Komura

IPC分类号： G11B5/64 ,  G11B5/84 ,  G11B5/66

CPC分类号： G11B5/64 ,  G11B5/8404 ,  G11B7/2531 ,  G11B7/26 ,  G11B11/10582

摘要： There is provided an information recording medium and a method of manufacturing a glass substrate for information recording media as well as a glass substrate manufactured using the method, according to which the take-off height (TOH) of a HDD for example can be made low. The surface shape in a predetermined region of an information recording medium is measured using an optical interferometer or an atomic force microscope. The measured surface shaped is subjected to line analysis along the circumferential direction of the information recording medium. A calculation is made of the product PSD×f of PSD corresponding to a predetermined wavelength ν and the reciprocal of the predetermined wavelength ν. The maximum value of the calculated PSD is controlled to not more than a predetermined value. As a result, the TOH can be made low by reducing waviness which hinders the magnetic head of a HDD or the like from stably flying.

摘要翻译： 提供了一种信息记录介质和用于信息记录介质的玻璃基板的制造方法以及使用该方法制造的玻璃基板，根据该方法，例如可以使HDD的起飞高度（TOH）低 。 使用光学干涉仪或原子力显微镜测量信息记录介质的预定区域中的表面形状。 测量的表面形状沿着信息记录介质的圆周方向进行线分析。 对与预定波长nu对应的PSD的乘积PSDxf和预定波长nu的倒数进行计算。 将计算出的PSD的最大值控制在规定值以下。 结果，通过减少妨碍HDD等的磁头稳定地飞行的波纹，可以使TOH变低。

公开(公告)号：US07415841B2

公开(公告)日：2008-08-26

申请号：US10397196

申请日：2003-03-27

申请人： Yuriko Kudoh ,  Kazuishi Mitani ,  Yasuhiro Saito

发明人： Yuriko Kudoh ,  Kazuishi Mitani ,  Yasuhiro Saito

IPC分类号： C03C21/00

CPC分类号： C03C21/002 ,  C03C17/006 ,  C03C17/06 ,  C03C2217/261 ,  C03C2217/42 ,  C03C2218/31 ,  C03C2218/322 ,  G11B5/7315 ,  G11B5/8404 ,  G11B7/2531 ,  G11B7/26 ,  G11B11/10582 ,  G11B23/0021

摘要： Prior to conducting chemical strengthening treatment by contacting a glass with a potassium-containing chemical strengthening treating solution, oxidation treatment is conducted to iron-containing particles adhered to a surface of the glass as a pre-step, and the glass is then chemically strengthened. The oxidation treatment is a heat treatment conducted at 80-400° C. in the air. A glass substrate for an information recording medium is obtained by the method.

摘要翻译： 在通过使玻璃与含钾化学强化处理溶液接触进行化学强化处理之前，对作为前期步骤的玻璃表面附着的含铁粒子进行氧化处理，然后进行化学强化。 氧化处理是在空气中在80-400℃进行的热处理。 通过该方法获得用于信息记录介质的玻璃基板。

公开(公告)号：US07727407B2

公开(公告)日：2010-06-01

申请号：US11131816

申请日：2005-05-17

申请人： Junji Kurachi ,  Kazuishi Mitani ,  Yasuhiro Saito ,  Hiroyuki Inomata

发明人： Junji Kurachi ,  Kazuishi Mitani ,  Yasuhiro Saito ,  Hiroyuki Inomata

IPC分类号： C03C25/66

CPC分类号： C03C19/00 ,  B24B7/24 ,  B24B37/042 ,  C03C3/087 ,  C03C3/091 ,  C03C3/095 ,  C03C15/00 ,  C03C2204/08 ,  Y10S977/856

摘要： There are provided a method of processing an amorphous material which is capable of forming surface projections of uniform height in desired positions on the amorphous material, and a magnetic disk substrate using the amorphous material. A predetermined pressure is applied to selected parts of a surface of an amorphous material using fine particles having a hardness higher than that of the amorphous material to form high-density compressed layers, and a surface layer of the amorphous material is removed using a treatment agent that has a different removal capacity in the compressed layers and a remaining uncompressed layer, thus making the compressed layers project out. For example, the treatment agent may be an etching solution having a different etching rate in the compressed layers and the uncompressed layer.

摘要翻译： 提供了一种处理非晶材料的方法，该非晶材料能够在非晶材料上的期望位置形成均匀高度的表面突起，以及使用该非晶材料的磁盘基板。 使用硬度高于无定形材料的细小颗粒将预定压力施加到非晶材料表面的选定部分，以形成高密度压缩层，并使用处理剂除去非晶材料的表面层 其在压缩层和剩余的未压缩层中具有不同的去除能力，从而使压缩层突出。 例如，处理剂可以是在压缩层和未压缩层中具有不同蚀刻速率的蚀刻溶液。

公开(公告)号：US06913702B2

公开(公告)日：2005-07-05

申请号：US09949692

申请日：2001-09-10

申请人： Junji Kurachi ,  Kazuishi Mitani ,  Yasuhiro Saito ,  Hiroyuki Inomata

发明人： Junji Kurachi ,  Kazuishi Mitani ,  Yasuhiro Saito ,  Hiroyuki Inomata

IPC分类号： B24B7/24 ,  C03C3/085 ,  C03C15/00 ,  B44C1/22

CPC分类号： C03C19/00 ,  B24B7/24 ,  B24B37/042 ,  C03C3/087 ,  C03C3/091 ,  C03C3/095 ,  C03C15/00 ,  C03C2204/08 ,  Y10S977/856

摘要： There are provided a method of processing an amorphous material which is capable of forming surface projections of uniform height in desired positions on the amorphous material, and a magnetic disk substrate using the amorphous material. A predetermined pressure is applied to parts of a surface of an amorphous material to form high-density compressed layers, and a surface layer of the amorphous material is removed using a treatment agent that has a different removal capacity in the compressed layers and a remaining uncompressed layer, thus making the compressed layers project out. For example, the treatment agent may be an etching solution having a different etching rate in the compressed layers and the uncompressed layer.

摘要翻译： 提供了一种处理非晶材料的方法，该非晶材料能够在非晶材料上的期望位置形成均匀高度的表面突起，以及使用该非晶材料的磁盘基板。 将预定的压力施加到非晶材料的表面的部分以形成高密度压缩层，并且使用在压缩层中具有不同去除能力的处理剂去除非晶材料的表面层，并且剩余的未压缩 层，从而使压缩层投射出来。 例如，处理剂可以是在压缩层和未压缩层中具有不同蚀刻速率的蚀刻溶液。

公开(公告)号：US06715318B2

公开(公告)日：2004-04-06

申请号：US09973495

申请日：2001-10-09

申请人： Kazuishi Mitani ,  Yasuhiro Saito ,  Tatsuro Umeyama

发明人： Kazuishi Mitani ,  Yasuhiro Saito ,  Tatsuro Umeyama

IPC分类号： C03C1900

CPC分类号： G11B23/0021 ,  B32B3/02 ,  C03C19/00 ,  G11B5/8404

摘要： There are provided a glass substrate for information recording media in which the undulations on the glass substrate surface are optimized, thus contributing to reduction of the flying height, and at the same time preventing the occurrence of head crashes and thermal asperity, and a method of manufacturing the glass substrate. At least one surface of a glass substrate is polished, and the polished at least one surface of the glass substrate is subjected to surface scrubbing using a sponge having an Asker C hardness of not less than 40 according to The Society of Rubber Industry, Japan SRIS 0101.

摘要翻译： 提供一种用于信息记录介质的玻璃基板，其中玻璃基板表面上的起伏被优化，从而有助于降低飞行高度，并且同时防止头部碰撞和热不均匀的发生，以及一种方法 制造玻璃基板。 抛光玻璃基板的至少一个表面，并且使用Asker C硬度不小于40的海绵对玻璃基板的抛光的至少一个表面进行表面洗涤，根据The Society of Rubber Industry，Japan SRIS 0101。

公开(公告)号：US06568995B1

公开(公告)日：2003-05-27

申请号：US09699339

申请日：2000-10-31

申请人： Kazuishi Mitani ,  Yasuhiro Saito

发明人： Kazuishi Mitani ,  Yasuhiro Saito

IPC分类号： B24B724

CPC分类号： C11D3/042 ,  C11D3/0042 ,  C11D3/14 ,  C11D11/0035

摘要： After a polishing process of polishing a glass substrate with an abrasive containing lanthanoid oxides, the glass substrate is subjected to the first and second washing processes. In the first washing process, the polished substrate is washed with a washing solution containing acid and a reducing agent, wherein the acid includes at least nitric acid. In the second washing process, the washed substrate is treated with an aqueous solution of an alkaline detergent. The substrate is suitable for a recording medium.

摘要翻译： 在用含有镧系元素氧化物的研磨剂对玻璃基板进行抛光处理之后，对玻璃基板进行第一次和第二次洗涤处理。 在第一洗涤过程中，用含酸和还原剂的洗涤溶液洗涤抛光的底物，其中酸至少包含硝酸。 在第二次洗涤过程中，用碱性洗涤剂的水溶液处理洗涤过的底物。 该基片适用于记录介质。

公开(公告)号：US08409401B2

公开(公告)日：2013-04-02

申请号：US11991870

申请日：2006-09-11

申请人： Masahiro Hori ,  Kazuishi Mitani ,  Yasuhiro Saito ,  Nobuyuki Takatsuki ,  Kyouichi Shukuri ,  Shunji Kuramoto

发明人： Masahiro Hori ,  Kazuishi Mitani ,  Yasuhiro Saito ,  Nobuyuki Takatsuki ,  Kyouichi Shukuri ,  Shunji Kuramoto

IPC分类号： B32B38/10

CPC分类号： C03C15/00 ,  C03C1/002 ,  C03C1/02 ,  C03C1/024 ,  Y10T156/1111 ,  Y10T156/1153

摘要： There are provided an aqueous solution for separation of a dark ceramics sintered body, which can easily collect in a recyclable condition a glass from a glass with a dark ceramics sintered body, and a separating method therefor, and an aqueous solution for separation with which a dark ceramics sintered body, a conductive ceramics sintered body and a glass are separately collected from a glass with a dark ceramics sintered body formed with the dark ceramics sintered body and the conductive ceramics sintered body, and a separating method therefor. A treatment liquid (hydrofluoric acid, a mixture of ammonium fluoride and an acid, etc.) having an etching ability for at least one of a glass and a dark ceramic sintered body is prepared as an aqueous solution 20 for separation of the dark ceramics sintered body, then type A treatment liquid is charged in a container 11, and a glass with a dark ceramics sintered body 30 is placed in the container 11.

摘要翻译： 提供一种用于分离深色陶瓷烧结体的水溶液，其可以容易地从具有深色陶瓷烧结体的玻璃中以可回收的状态收集玻璃，以及其分离方法，以及用于分离的水溶液 黑陶瓷烧结体，导电陶瓷烧结体和玻璃分别从具有暗陶瓷烧结体和导电陶瓷烧结体形成的深色陶瓷烧结体的玻璃中收集，以及其分离方法。 制备具有对于玻璃和深陶瓷烧结体中的至少一种具有蚀刻能力的处理液（氢氟酸，氟化铵和酸的混合物）作为用于分离黑色陶瓷烧结体的水溶液20 然后将A型处理液装入容器11中，将具有深色陶瓷烧结体30的玻璃放置在容器11中。

公开(公告)号：US08118971B2

公开(公告)日：2012-02-21

申请号：US11991872

申请日：2006-09-11

申请人： Masahiro Hori ,  Kazuishi Mitani ,  Yasuhiro Saito ,  Nobuyuki Takatsuki ,  Kyouichi Shukuri ,  Shunji Kuramoto

发明人： Masahiro Hori ,  Kazuishi Mitani ,  Yasuhiro Saito ,  Nobuyuki Takatsuki ,  Kyouichi Shukuri ,  Shunji Kuramoto

IPC分类号： B32B38/10

CPC分类号： B32B17/1099 ,  B29B17/02 ,  B29B17/0412 ,  B29B2017/0293 ,  B29B2017/0296 ,  B29K2031/04 ,  B29K2709/08 ,  B29L2031/7782 ,  B32B17/10761 ,  B32B17/10788 ,  B32B43/006 ,  B32B2309/02 ,  B32B2309/04 ,  B32B2315/08 ,  C03C15/00 ,  C03C23/0075 ,  C08J11/08 ,  Y02W30/622 ,  Y02W30/625 ,  Y02W30/701 ,  Y10S156/927 ,  Y10T156/1111 ,  Y10T156/1116 ,  Y10T156/1121 ,  Y10T156/1142 ,  Y10T156/1153 ,  Y10T156/1922

摘要： There are provided an interlayer film separation solution and an interlayer film separation method capable of separating an interlayer film and a glass for a short period of time and collecting the separated interlayer film in a recyclable condition. An interlayer film separation solution 21 having etching ability for a glass is introduced into a container 22, and the introduced interlayer film separation solution 21 was controlled to a temperature of 30 to 60° C., and a laminated glass 10 with glass plates 11, 12 crushed is introduced into a barrel 23 from a lid portion 23a, and simultaneously, 50 to 60 metal pieces 25 are, introduced into the barrel 23 from the lid portion 23a in order to easily separate the laminated glass 10 into the glass plates 11, 12 and an interlayer film 13. The barrel 23 containing the laminated glass 10 and the metal pieces 25 introduced thereinto is rotated at a predetermined rotational speed.

摘要翻译： 提供了一种能够短时间分离中间膜和玻璃的中间膜分离溶液和中间膜分离方法，并将可分离的层间膜收集在可回收的状态。 将具有玻璃蚀刻能力的层间膜分离液21导入容器22中，将导入的中间膜分离液21控制在30〜60℃的温度，将玻璃板11， 12被粉碎从盖部23a引入筒体23中，同时从盖部23a将50〜60个金属片25引入筒体23，以容易地将夹层玻璃10分离成玻璃板11， 12和层间膜13.容纳夹层玻璃10的筒体23和引入其中的金属片25以预定旋转速度旋转。

公开(公告)号：US06782717B2

公开(公告)日：2004-08-31

申请号：US10346202

申请日：2003-01-16

申请人： Yasuhiro Saito ,  Kazuishi Mitani ,  Tatsuro Umeyama ,  Koji Okuhata ,  Toshiaki Hashimoto

发明人： Yasuhiro Saito ,  Kazuishi Mitani ,  Tatsuro Umeyama ,  Koji Okuhata ,  Toshiaki Hashimoto

IPC分类号： C03B2100

CPC分类号： C03C19/00 ,  C03C2204/08 ,  G11B5/7315 ,  G11B5/8404 ,  G11B7/24047 ,  G11B7/2531 ,  G11B7/26 ,  G11B11/10582 ,  G11B23/0021 ,  Y10T428/218 ,  Y10T428/24355

摘要： A method for manufacturing a disk-like glass substrate that is used as an information recording medium. The glass substrate is acid resistant. When an index of acid resistance is the maximum depth at which components other than silica dissolve from the glass substrate during immersion of the glass substrate in 1 percentage of weight of sulfuric acid, the acid resistance of the glass substrate is represented by the maximum depth of 0.5 nm to 10 nm. A linear texture is formed by pressing a tape against the glass substrate in a circumferential direction of the glass substrate while feeding abrasion slurry to the surface of the glass substrate. Acid treatment is performed on the glass substrate on which the texture is formed.

摘要翻译： 用作信息记录介质的盘状玻璃基板的制造方法。 玻璃基材耐酸。 耐酸性指数是在将玻璃基板浸渍在1重量％的硫酸中时从玻璃基板溶解的二氧化硅以外的成分的最大深度，玻璃基板的耐酸性由最大深度 0.5nm至10nm。 通过在玻璃基板的周向上将玻璃基板压在玻璃基板上，同时将磨料浆料供给到玻璃基板的表面而形成线性纹理。 在其上形成纹理的玻璃基板上进行酸处理。

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。