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1. 发明专利

MY119120A ABRASIVE COMPOSITION FOR MAGNETIC DISK POLISHING AND ABRASIVE LIQUID USING THE SAME 未知
公开(公告)号：MY119120A
公开(公告)日：2005-03-31
申请号：MYPI9700814
申请日：1997-02-28
申请人： TOYO KOHAN CO LTD
发明人： UEDA YUSUKE , KAWAMURA TSUGIO , KOIKE KAZUYUKI
IPC分类号： C09K3/14 , B24B37/00 , C01F7/02 , G11B5/84
摘要： THE OBJECT OF THE PRESENT INVENTION IS TO PROVIDE AN ABRASIVE COMPOSITION FOR MAGNETIC DISK POLISHING CAPABLE OF EFFICIENTLY POLISHING A MAGNETIC DISK SUBSTRATE TO FORM A MIRROR-FINISHED SURFACE OF HIGH ACCURACY.THE ABRASIVE COMPOSITION FOR MAGNETIC DISK POLISHING AND THE ABRASIVE LIQUID USING THE SAME CONTAINING PREDOMINANT AMOUNT OF 50 ~ 400G/L OF ALUMINA ABRASIVE POWDER WHOSE MEAN PARTICLE DIAMETER OF 0.2 ~ 10 µ M, 20 ~ 100G/L OF GIBBSITE, AND A DISPERSING AGENT.

2. 发明专利

AU1734697A Magnetic disc polishing composition and polishing liquid containing it 未知
公开(公告)号：AU1734697A
公开(公告)日：1998-09-09
申请号：AU1734697
申请日：1997-02-21
申请人： TOYO KOHAN CO LTD
发明人： UEDA YUSUKE , KAWAMURA TSUGIO , KOIKE KAZUYUKI
IPC分类号： G11B5/84 , C09K3/14 , B24B37/00 , C01F7/02

3. 发明专利

JP2002254175A JOINING METHOD AND JOINING DEVICE FOR METAL MEMBER AND JOINING METAL MEMBER 失效
公开(公告)号：JP2002254175A
公开(公告)日：2002-09-10
申请号：JP2001053295
申请日：2001-02-28
申请人： TOYO KOHAN CO LTD
发明人： KAWAMURA TSUGIO , OZAKI SHINYA , SAKAMOTO NOBUO
IPC分类号： B23K11/00 , B23K11/36
摘要： PROBLEM TO BE SOLVED: To provide a joining method, joining device for a metal member joining with other member and the metal member made by joining without completely melting a plurality of the metal members, in particular this thickness metal members, nor generating a defect and unevenness of the joining. SOLUTION: The metal members to be joined are brought into contact with each other, then the heated member is heated while pressing using a heating means, and carrent-carrying into the metal member is made under a state that electric resistance is increased.

4. 发明专利

JPH06306635A HEAT RESISTANT STEEL MEMBER 失效
公开(公告)号：JPH06306635A
公开(公告)日：1994-11-01
申请号：JP11935593
申请日：1993-04-23
申请人： TOYO KOHAN CO LTD
发明人： NAKANO KAZUNORI , INOUE MASARU , KAWAMURA TSUGIO
IPC分类号： C22C29/02 , C23C24/08
摘要： PURPOSE:To provide a heat resistant steel member in which the peeling and fracture of a heat resistant film or the breakage of a steel base material is difficult to occur even if hot repeated loads are applied. CONSTITUTION:In a heat resistant steel member, a liquid phase sintered layer 2 constituted of chromium carbide 3, metal boride 4 and nickel (and chromium) 4 is formed on the surface. The sintered layer 2 is formed preferably by applying organic solvent slurry constituted of, by weight, 50 to 85% Cr3C2 powder, 0.5 to 6% metal boride powder and 14.5 to 44% Ni powder (and chromium powder) on the surface of a steel base material 1, subjecting it to natural drying and thereafter executing liquid phase sintering.

5. 发明专利

JP2007179589A Manufacturing method of glass substrate for magnetic disk, and glass substrate for magnetic disk 审中-公开
标题翻译：用于磁盘的玻璃基板的制造方法和用于磁盘的玻璃基板
公开(公告)号：JP2007179589A
公开(公告)日：2007-07-12
申请号：JP2005373413
申请日：2005-12-26
申请人： Toyo Kohan Co Ltd , 東洋鋼鈑株式会社
发明人： KAWAMURA TSUGIO , UCHIYAMA YOSHIO
IPC分类号： G11B5/84 , C03B27/012 , C03C19/00
CPC分类号： Y02P40/57
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a glass substrate for a magnetic disk by which the strength of the glass substrate is enhanced, the number of defects after final polish is reduced and the machining allowance of polish can be reduced, and to provide the glass substrate for the magnetic disk whose strength is enhanced by ≥200% by heating using the manufacturing method of the glass substrate for the magnetic disk. SOLUTION: In a polishing step of the glass substrate for the magnetic disk, lapping is performed and the glass substrate is heated at 450 to 650°C for 10 to 60 min to increase circular ring strength and then final polish is performed to obtain the glass substrate for the magnetic disk. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：为了提供一种通过提高玻璃基板的强度的磁盘用玻璃基板的制造方法，最终抛光后的缺陷数量减少，并且能减少抛光加工余量并且通过使用用于磁盘的玻璃基板的制造方法进行加热来提供强度提高≥200％的磁盘用玻璃基板。解决方案：在用于磁盘的玻璃基板的抛光步骤中，进行研磨，并将玻璃基板在450至650℃下加热10至60分钟以增加圆环强度，然后进行最终抛光获得用于磁盘的玻璃基板。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006347791A CRYSTALLIZED LAYER-STACKED GLASS, AND GLASS SUBSTRATE FOR MAGNETIC DISK USING THE SAME 审中-公开
公开(公告)号：JP2006347791A
公开(公告)日：2006-12-28
申请号：JP2005173348
申请日：2005-06-14
申请人： TOYO KOHAN CO LTD
发明人： INABA SEIJI , UCHIYAMA YOSHIO , KAWAMURA TSUGIO
IPC分类号： C03B32/02 , C03C10/12 , G11B5/73
摘要： PROBLEM TO BE SOLVED: To provide crystallized layer-stacked glass in which a crystallized layer is stacked at least on a part of the surface in a glass base material, to provide crystallized layer-stacked glass in which the thickness of at least a part of a crystallized layer-stacked on the surface of a glass base material is different from that of the other part, to provide a glass substrate for a magnetic disk using crystallized layer-stacked glass, and to provide a glass substrate for a magnetic disk in which at least a part of the region in the edge face is provided with a crystallized layer. SOLUTION: A starting raw material to be the preform of glass and, as necessary, a prescribed amount of additive are weighed with an electronic balance so as to be mixed. The mixture is melted by a crucible, and is cooled to be formed into glass. The glass is reheated so as to stack a crystallized layer on the surface of the glass, and the main surface is partially polished, thus the crystallized layer-stacked glass is produced. Using the same, e.g., a glass substrate for a magnetic disk is produced. COPYRIGHT: (C)2007,JPO&INPIT

7. 发明专利

JP2006286139A Glass substrate for magnetic disk, reinforcement method of glass substrate for magnetic disk and hard disk drive using them 审中-公开
标题翻译：用于磁盘的玻璃基板，用于磁盘的玻璃基板和使用它们的硬盘驱动器的加强方法
公开(公告)号：JP2006286139A
公开(公告)日：2006-10-19
申请号：JP2005107567
申请日：2005-04-04
申请人： Toyo Kohan Co Ltd , 東洋鋼鈑株式会社
发明人： KAWAMURA TSUGIO , INABA SEIJI , UCHIYAMA YOSHIO
IPC分类号： G11B5/73 , C03C23/00 , G11B5/82 , G11B5/84
摘要： PROBLEM TO BE SOLVED: To provide a glass substrate for a magnetic disk wherein an outer peripheral part of the glass disk is not damaged even when impact of a drop etc. is loaded, to provide a reinforcement method of the glass substrate for the magnetic disk and to provide a hard disk drive using them.
SOLUTION: A reinforcement treatment part is provided at lower and upper surfaces having prescribed widths from outer peripheral end parts and outer peripheral end surface on the periphery of the outer peripheral end part of the glass substrate for the magnetic disk near to an outer peripheral part of the magnetic disk where a head for reading and writing in the hard disk drive by using the reinforcement treatment method. In the reinforcing treatment method, a glass surface or a glass inner part is irradiated with a super short pulse laser beam so that the laser beam is condensed therein to form a heterogeneous phase. The hard disk drive is formed by using the glass substrate for the magnetic disk.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：为了提供一种用于磁盘的玻璃基板，其中玻璃盘的外周部分即使在下落等的撞击时也不会损坏，为了提供玻璃基板的加强方法磁盘并提供使用它们的硬盘驱动器。解决方案：在靠近外部的磁盘用玻璃基板的外周端部的外周端部的外周端部和外周端面的下表面和上表面设置有加强处理部，通过使用加强处理方法，在磁盘的外围部分，其中用于在硬盘驱动器中读写的头部。在增强处理方法中，用超短脉冲激光束照射玻璃表面或玻璃内部部分，使得激光束在其中冷凝以形成非均相。通过使用用于磁盘的玻璃基板形成硬盘驱动器。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JPS6334201B2 失效
公开(公告)号：JPS6334201B2
公开(公告)日：1988-07-08
申请号：JP19251883
申请日：1983-10-17
申请人： TOYO KOHAN CO LTD
发明人： KAWAMURA TSUGIO , OOHIRA SEIICHI , OOHORI MITSUO , IMAI TOSHIRO , KONDO YOSHIKAZU
IPC分类号： B22F7/08 , B22F7/06

9. 发明专利

JPS59229460A METHOD FOR USING METAL OF SIMILAR COMPOSITION OF HARD SINTERED ALLOYS 失效
公开(公告)号：JPS59229460A
公开(公告)日：1984-12-22
申请号：JP10162283
申请日：1983-06-09
申请人： TOYO KOHAN CO LTD
发明人： IDE TSUNEYUKI , KAWAMURA TSUGIO , OOHIRA SEIICHI , WATANABE TADAO , KONDOU YOSHIKAZU
IPC分类号： C22C29/12 , C22C29/00 , C22C29/14 , C22C32/00
摘要： PURPOSE:To reduce wear loss under high load and no lubrication by using hard sintered alloys each consisting of iron-base composite boride as a hard phase and a metal such as Cr, Fe, Mo, W or Ti or an alloy thereof as a binding phase in the form of a metal of similar composition. CONSTITUTION:Hard sintered alloys each consisting of 35-96% iron-base composite boride as a hard phase and the balance Cr, Fe, Mo, W, Ti, V, Nb, Ta, Hf, Zr, Ni, Cu, Co, Mn or an alloy thereof as a binding phase are combined with each other and used. The combined material has sufficient wear resistance, does not damage other material, and can show superior function.

10. 发明专利

JP2006347790A GLASS, AND PARTS USING THE SAME 审中-公开
公开(公告)号：JP2006347790A
公开(公告)日：2006-12-28
申请号：JP2005173332
申请日：2005-06-14
申请人： TOYO KOHAN CO LTD
发明人： INABA SEIJI , UCHIYAMA YOSHIO , KAWAMURA TSUGIO
IPC分类号： C03C21/00 , C03B32/00 , G11B5/73 , G11B5/82
摘要： PROBLEM TO BE SOLVED: To provide glass obtained by adding a metallic compound-containing raw material to two or more kinds of glass raw materials, and whose surface can be provided with an metallic compound layer, to provide metallic compound-coated glass obtained by coating a glass surface with a metallic compound, to provide a metal-coated glass obtained by coating a glass surface with a metal, and to provide parts obtained by using them. SOLUTION: Prescribed amounts of starting raw materials to form into a base metal of glass and a raw material to form into a metallic compound film are weighed with an electronic balance, so as to be mixed. The mixture is melted with a crucible, and is cooled to form into glass. The surface of the glass is coated with a metallic compound by reheating, so as to produce metal-coated glass by metallization treatment. The metal-coated glass is subjected to etching or the like, and is used as a printed circuit board or the like. COPYRIGHT: (C)2007,JPO&INPIT

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