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1. 发明申请

US20120276416A1 MAGNETIC DISK SUBSTRATE, MAGNETIC DISK, AND MAGNETIC DISK DEVICE 审中-公开
标题翻译：磁盘基板，磁盘和磁盘装置
公开(公告)号：US20120276416A1
公开(公告)日：2012-11-01
申请号：US13544212
申请日：2012-07-09
申请人： Toshio TAKIZAWA , Kraisorn PHANDON , Kenichi NISHIMORI
发明人： Toshio TAKIZAWA , Kraisorn PHANDON , Kenichi NISHIMORI
IPC分类号： G11B5/706
CPC分类号： G11B5/7315 , G11B5/82
摘要： It is an object to provide a magnetic disk substrate highly reliable to prevent the occurrence of crash failure even if a magnetic disk is rotated at high speed, and suitable for a hard disk that starts and stops by the load/unload method, and a magnetic disk using such a substrate.The representative structure of a magnetic disk substrate according to this invention is a disk-shaped glass substrate 10 having a generally flat main surface 11, an end face 12, a chamfered face 13 formed between the main surface 11 and the end face 12, and an offset portion, at the periphery of the main surface 11, raised or lowered with respect to a flat surface, other than the periphery, of the main surface 11, and characterized in that the magnitude of the offset portion is approximately uniform over the entire circumference of the glass substrate 10.
摘要翻译：本发明的目的是提供一种高可靠性的磁盘基板，即使磁盘高速旋转也能够防止发生碰撞故障，适用于通过负载/卸载方法启动和停止的硬盘使用这种基板的盘。根据本发明的磁盘基板的代表性结构是具有大致平坦的主表面11，端面12，形成在主表面11和端面12之间的倒角面13的圆盘形玻璃基板10，以及在主表面11的周边处，偏移部分相对于主表面11的外周面的平坦表面升高或降低，并且其特征在于，偏移部分的大小整体上大致均匀玻璃基板10的周长。

2. 发明授权

US08640497B2 Method of manufacturing glass substrate for magnetic disk and system for manufacturing glass substrate for magnetic disk 有权
标题翻译：制造磁盘用玻璃基板的方法及制造用于磁盘的玻璃基板的系统
公开(公告)号：US08640497B2
公开(公告)日：2014-02-04
申请号：US12525251
申请日：2008-01-24
申请人： Ryuuichi Kashima , Hideki Isono , Shinji Eda , Tomotaka Yokoyama , Tadashi Tomonaga , Kraisorn Phandon , Weeraphan Yayod
发明人： Ryuuichi Kashima , Hideki Isono , Shinji Eda , Tomotaka Yokoyama , Tadashi Tomonaga , Kraisorn Phandon , Weeraphan Yayod
IPC分类号： C03B15/00
CPC分类号： B24B9/08 , C03C21/002 , G11B5/8404
摘要： To provide a magnetic-disk glass substrate manufacturing method that can reduce the inner diameter dimensional error.A magnetic-disk glass substrate manufacturing method of this invention including a chemical strengthening step of bringing a plurality of glass substrates 102 into contact with chemical strengthening treatment solutions of a plurality of chemical strengthening treatment baths 130, respectively, to chemically strengthen the glass substrates further includes an inner diameter measuring step of measuring the inner diameter of each of the glass substrates 102 before the chemical strengthening step, a grasping step of grasping a variation of the inner diameter of the glass substrate 102 to be generated by the chemical strengthening step for each of the chemical strengthening treatment baths 130, and a combination determining step of determining the chemical strengthening treatment baths 130, that perform chemical strengthening, based on the variations so that the inner diameters of the glass substrates, whose inner diameters are measured, after the chemical strengthening step become a desired value. In the chemical strengthening step, the glass substrates 102 are chemically strengthened in the determined chemical strengthening treatment baths 130, respectively.
摘要翻译：提供可以减小内径尺寸误差的磁盘玻璃基板的制造方法。本发明的磁盘玻璃基板的制造方法包括使多个玻璃基板102分别与多个化学强化处理槽130的化学强化处理液接触的化学强化工序，以进一步化学强化玻璃基板包括在化学强化步骤之前测量每个玻璃基板102的内径的内径测量步骤，抓取步骤，用于通过化学强化步骤获得要通过化学强化步骤产生的玻璃基板102的内径的变化化学强化处理槽130的化学强化处理槽130的化学强化处理槽130的化学强化处理槽130的组合判定步骤，基于这些变化，进行化学强化的化学强化处理槽130，使得测定内径的玻璃基板的内径在化学品加强步骤成为一个希望 ed值。在化学强化步骤中，分别在确定的化学强化处理槽130中对玻璃基板102进行化学强化。

3. 发明授权

US08986859B2 Magnetic disk substrate, magnetic disk, and magnetic disk device 有权
标题翻译：磁盘基板，磁盘和磁盘装置
公开(公告)号：US08986859B2
公开(公告)日：2015-03-24
申请号：US13544212
申请日：2012-07-09
申请人： Toshio Takizawa , Kraisorn Phandon , Kenichi Nishimori
发明人： Toshio Takizawa , Kraisorn Phandon , Kenichi Nishimori
IPC分类号： G11B5/706 , G11B5/64 , G11B5/73 , G11B5/82
CPC分类号： G11B5/7315 , G11B5/82
摘要： It is an object to provide a magnetic disk substrate highly reliable to prevent the occurrence of crash failure even if a magnetic disk is rotated at high speed, and suitable for a hard disk that starts and stops by the load/unload method, and a magnetic disk using such a substrate. The representative structure of a magnetic disk substrate is a disk-shaped glass substrate 10 having a generally flat main surface 11, an end face 12, a chamfered face 13 formed between the main surface 11 and the end face 12, and an offset portion, at the periphery of the main surface 11, raised or lowered with respect to a flat surface, other than the periphery, of the main surface 11, and characterized in that the magnitude of the offset portion is approximately uniform over the entire circumference of the glass substrate 10.
摘要翻译：本发明的目的是提供一种高可靠性的磁盘基板，即使磁盘高速旋转也能够防止发生碰撞故障，适用于通过负载/卸载方法启动和停止的硬盘使用这种基板的盘。磁盘基板的代表性结构是具有大致平坦的主表面11，端面12，形成在主表面11和端面12之间的倒角面13和偏移部分的盘形玻璃基板10，在主表面11的周边处，相对于主表面11的外周面的平坦表面升高或降低，其特征在于，偏移部分的大小在玻璃的整个圆周上大致均匀基板10。

4. 发明申请

US20100040907A1 MAGNETIC DISK SUBSTRATE, MAGNETIC DISK, AND MAGNETIC DISK DEVICE 有权
标题翻译：磁盘基板，磁盘和磁盘装置
公开(公告)号：US20100040907A1
公开(公告)日：2010-02-18
申请号：US12527818
申请日：2008-02-19
申请人： Toshio Takizawa , Kraisorn Phandon , Kenichi Nishimori
发明人： Toshio Takizawa , Kraisorn Phandon , Kenichi Nishimori
IPC分类号： G11B5/706 , G11B5/64
CPC分类号： G11B5/7315 , G11B5/82
摘要： It is an object to provide a magnetic disk substrate highly reliable to prevent the occurrence of crash failure even if a magnetic disk is rotated at high speed, and suitable for a hard disk that starts and stops by the load/unload method, and a magnetic disk using such a substrate.The representative structure of a magnetic disk substrate according to this invention is a disk-shaped glass substrate 10 having a generally flat main surface 11, an end face 12, a chamfered face 13 formed between the main surface 11 and the end face 12, and an offset portion, at the periphery of the main surface 11, raised or lowered with respect to a flat surface, other than the periphery, of the main surface 11, and characterized in that the magnitude of the offset portion is approximately uniform over the entire circumference of the glass substrate 10.
摘要翻译：本发明的目的是提供一种高可靠性的磁盘基板，即使磁盘高速旋转也能够防止发生碰撞故障，适用于通过负载/卸载方法启动和停止的硬盘使用这种基板的盘。根据本发明的磁盘基板的代表性结构是具有大致平坦的主表面11，端面12，形成在主表面11和端面12之间的倒角面13的圆盘形玻璃基板10，以及在主表面11的周边处，偏移部分相对于主表面11的外周面的平坦表面升高或降低，并且其特征在于，偏移部分的大小整体上大致均匀玻璃基板10的周长。

5. 发明申请

US20100024484A1 METHOD OF MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC DISK AND SYSTEM FOR MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC DISK 有权
标题翻译：制造用于磁盘的玻璃基板的制造方法和用于制造用于磁盘的玻璃基板的系统
公开(公告)号：US20100024484A1
公开(公告)日：2010-02-04
申请号：US12525251
申请日：2008-01-24
申请人： Ryuuichi Kashima , Hideki Isono , Shinji Eda , Tomotaka Yokoyama , Tadashi Tomonaga , Kraisorn Phandon , Weeraphan Yayod
发明人： Ryuuichi Kashima , Hideki Isono , Shinji Eda , Tomotaka Yokoyama , Tadashi Tomonaga , Kraisorn Phandon , Weeraphan Yayod
IPC分类号： C03C21/00
CPC分类号： B24B9/08 , C03C21/002 , G11B5/8404
摘要： To provide a magnetic-disk glass substrate manufacturing method that can reduce the inner diameter dimensional error.A magnetic-disk glass substrate manufacturing method of this invention including a chemical strengthening step of bringing a plurality of glass substrates 102 into contact with chemical strengthening treatment solutions of a plurality of chemical strengthening treatment baths 130, respectively, to chemically strengthen the glass substrates further includes an inner diameter measuring step of measuring the inner diameter of each of the glass substrates 102 before the chemical strengthening step, a grasping step of grasping a variation of the inner diameter of the glass substrate 102 to be generated by the chemical strengthening step for each of the chemical strengthening treatment baths 130, and a combination determining step of determining the chemical strengthening treatment baths 130, that perform chemical strengthening, based on the variations so that the inner diameters of the glass substrates, whose inner diameters are measured, after the chemical strengthening step become a desired value. In the chemical strengthening step, the glass substrates 102 are chemically strengthened in the determined chemical strengthening treatment baths 130, respectively.
摘要翻译：提供可以减小内径尺寸误差的磁盘玻璃基板的制造方法。本发明的磁盘玻璃基板的制造方法包括使多个玻璃基板102分别与多个化学强化处理槽130的化学强化处理液接触的化学强化工序，以进一步化学强化玻璃基板包括在化学强化步骤之前测量每个玻璃基板102的内径的内径测量步骤，抓取步骤，通过每个步骤获取通过化学强化步骤产生的玻璃基板102的内径的变化化学强化处理槽130的化学强化处理槽130的化学强化处理槽130的化学强化处理槽130的组合判定步骤，基于这些变化，进行化学强化的化学强化处理槽130，使得测定内径的玻璃基板的内径在化学品加强步骤成为一个希望 ed值。在化学强化步骤中，分别在确定的化学强化处理槽130中对玻璃基板102进行化学强化。

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