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21. 发明授权

US06427489B1 Process for producing glass substrate for information recording medium and process for producing recording medium using said glass substrate 有权
标题翻译：用于生产信息记录介质用玻璃基板的方法和使用所述玻璃基板的记录介质的制造方法
公开(公告)号：US06427489B1
公开(公告)日：2002-08-06
申请号：US09571049
申请日：2000-05-15
申请人： Shinji Eda , Jun Ozawa
发明人： Shinji Eda , Jun Ozawa
IPC分类号： C03C2100
CPC分类号： C03C19/00 , C03C17/06 , C03C21/002 , C03C23/0075 , G11B5/8404
摘要： A process for producing a glass substrate for an information recording medium comprising: (a) providing a chemical reinforcement tank comprising a chemical reinforcement liquid contained therein, and a holding means for holding a glass substrate; and (b) chemically strengthening the glass substrate by immersing the glass substrate in the chemical reinforcement liquid, wherein ions are exchanged on the surface of the glass substrate with ions in the chemical reinforcement liquid having a diameter larger than that in the glass substrate; wherein at least one of a wall surface of the chemical reinforcement tank and the holding means is made from a stainless alloy which exhibits corrosion resistance in a high temperature region of the chemical reinforcement liquid, the stainless alloy being made from a martensitic stainless alloy or an austenitic stainless alloy. Such process prevents the adhesion of particles, such as fine iron particles onto the glass substrate.
摘要翻译：一种用于生产用于信息记录介质的玻璃基板的方法，包括：（a）提供包含其中包含化学增强液的化学增强槽和用于保持玻璃基板的保持装置; 和（b）通过将玻璃基板浸渍在化学增强液体中来对玻璃基板进行化学强化，其中在直径大于玻璃基板的化学增强液中的离子在玻璃基板的表面上交换离子; 其特征在于，所述化学增强槽的壁面和所述保持机构中的至少一个由所述化学增强液体的高温区域表现出耐腐蚀性的不锈钢合金制成，所述不锈钢合金由马氏体不锈钢合金或奥氏体不锈钢合金。这种方法防止颗粒（例如细铁颗粒）附着到玻璃基板上。

22. 发明授权

US06534120B1 Chemically reinforced glass manufacture method, information recording medium glass substrate manufacture method, information recording medium manufacture method, and chemical reinforcement device 有权
标题翻译：化学强化玻璃制造方法，信息记录介质玻璃基板制造方法，信息记录介质制造方法和化学增强装置
公开(公告)号：US06534120B1
公开(公告)日：2003-03-18
申请号：US09606715
申请日：2000-06-29
申请人： Jun Ozawa , Shinji Eda
发明人： Jun Ozawa , Shinji Eda
IPC分类号： B05D512
CPC分类号： G11B5/8404 , C03C21/002
摘要： In order to prevent particles generated in the preparation of a chemically reinforcing molten salt from getting into an operation atmosphere for performing a chemical reinforcement, a chemical reinforcement tank 2 and a dissolution tank 10 for preparing the chemically reinforcing molten salt are separated from each other. In a typical embodiment, the chemical reinforcement tank is disposed in a clean room 35, and the dissolution tank 10 is disposed outside the clean room.
摘要翻译：为了防止在制备化学增强熔融盐时产生的颗粒进入用于进行化学增强的操作气氛中，用于制备化学增强熔融盐的化学增强槽2和溶解槽10彼此分离。在典型的实施方案中，化学加固槽设置在洁净室35中，溶解槽10设置在洁净室的外部。

23. 发明授权

US6134918A Method of fabricating glass substrate for magnetic disk and method of fabricating magnetic disk 失效
标题翻译：制造磁盘用玻璃基板的方法及制造磁盘的方法
公开(公告)号：US6134918A
公开(公告)日：2000-10-24
申请号：US999480
申请日：1997-12-29
申请人： Nobuyuki Eto , Koji Takahashi , Shinji Eda
发明人： Nobuyuki Eto , Koji Takahashi , Shinji Eda
IPC分类号： C03C21/00 , G11B5/84
CPC分类号： C03C21/002 , G11B5/8404
摘要： The surface of a glass substrate withdrawn from a chemically strengthening treatment liquid is processed with a heated acid (for example, a thermal concentrated sulphuric acid at a temperature of over 100.degree. C., or a water soluble organic solvent such as glycerol or polyethylene glycol). Consequently, precipitated fused salt can be effectively removed without damaging the glass substrate and the change in quality of the glass surface can be also prevented at a high level.
摘要翻译：从化学强化处理液体取出的玻璃基板的表面用加热的酸（例如，在100℃以上的热浓硫酸，或水溶性有机溶剂如甘油或聚乙二醇））。因此，可以有效地除去沉淀的熔融盐，而不会损坏玻璃基板，并且还可以高水平地防止玻璃表面的质量变化。

24. 发明授权

US6119483A Process for producing glass substrate for information recording medium 失效
标题翻译：信息记录媒体用玻璃基板的制造方法
公开(公告)号：US6119483A
公开(公告)日：2000-09-19
申请号：US999479
申请日：1997-12-29
申请人： Koji Takahashi , Kazuhiko Maeda , Shinji Eda , Jun Ozawa , Katsutoshi Ono , Kinobu Osakabe , Nobuyuki Eto
发明人： Koji Takahashi , Kazuhiko Maeda , Shinji Eda , Jun Ozawa , Katsutoshi Ono , Kinobu Osakabe , Nobuyuki Eto
IPC分类号： C03C17/06 , C03C19/00 , C03C21/00 , C03C23/00 , G11B5/84
CPC分类号： C03C19/00 , C03C17/06 , C03C21/002 , C03C23/0075 , G11B5/8404
摘要： An object of the present invention is to prevent the dhesion of particles such as fine iron powders onto a glass substrate upon the production of a glass substrate for an information recording medium. To attain the above object, any one of the following means is adopted: (1) at least one of the production, inspection, packing and filling steps of the glass substrate for an information recording medium is carried out under a clean atmosphere which does not permit the adhesion of particles; (2) at least a wall surface of a chemical reinforcement tank containing a chemical reinforcement liquid therein and/or said retaining means which is contact with the chemical reinforcement liquid is formed of a stainless alloy having corrosion resistance in a high-temperature region as high as the heating temperature of the chemical reinforcement liquid; (3) a means for trapping fine particles existing in the chemical reinforcement liquid used in the chemical reinforcement step is provided; and (4) the glass substrate is washed with hydrochloric acid.
摘要翻译：本发明的目的是在生产用于信息记录介质的玻璃基板时，防止微细铁粉等颗粒在玻璃基板上的粘附。为了实现上述目的，采用以下方法之一：（1）用于信息记录介质的玻璃基板的生产，检查，包装和填充步骤中的至少一个在不干净的气氛下进行允许颗粒的粘附; （2）至少在其中含有化学增强液体的化学加固槽的壁面和/或与化学增强液体接触的所述保持装置由在高温区域具有高耐腐蚀性的不锈钢合金形成作为化学增强液的加热温度; （3）提供用于捕获存在于化学增强步骤中使用的化学增强液体中的微粒的装置; 和（4）玻璃基板用盐酸洗涤。

25. 发明授权

US4945432A Magnetic disk drive with brittle disks 失效
标题翻译：具有脆性磁盘的磁盘驱动器
公开(公告)号：US4945432A
公开(公告)日：1990-07-31
申请号：US175510
申请日：1988-03-31
申请人： Takeo Matsudaira , Hiroshi Kouno , Shinji Eda , Juuzoh Funayama
发明人： Takeo Matsudaira , Hiroshi Kouno , Shinji Eda , Juuzoh Funayama
IPC分类号： G11B5/82 , G11B17/02 , G11B17/038 , G11B23/00
CPC分类号： G11B5/82 , G11B17/02 , G11B17/038 , G11B23/0021
摘要： A magnetic disk drive of the Winchester type has magnetic disks layered around the external peripheral surface of a spindle and separated mutually from one another by spacers. The substrate of the magnetic disks are made of non-metallic materials such as glass or ceramics but do not break easily by the motion of the spindle or the change in temperature because either the adhesive used to form a unistructural assembly of the magnetic disks and the spacers or elastic members inserted in annular indentations formed in the spacers serve as a buffer when the magnetic disks and the spacers are compressed together.
摘要翻译：温彻斯特型磁盘驱动器具有围绕主轴的外周面层叠的磁盘，并且通过间隔物彼此分离。磁盘的基板由诸如玻璃或陶瓷之类的非金属材料制成，但由于主轴的运动或温度的变化而不容易破裂，因为用于形成磁盘的非结构组件的粘合剂和当磁盘和间隔件被压缩在一起时，插入在间隔件中形成的环形凹陷中的间隔件或弹性构件用作缓冲器。

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