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1. 发明专利

JP2006212699A Method for manufacturing stepped shaft component of titanium alloy 审中-公开
标题翻译：制造钛合金步进组分的方法
公开(公告)号：JP2006212699A
公开(公告)日：2006-08-17
申请号：JP2005031169
申请日：2005-02-07
申请人： Daido Steel Co Ltd , Nissei Seiko Kk , 大同特殊鋼株式会社 , 日星精工株式会社
发明人： SAKO TAKASHI , YOSHIDA HIROAKI , FUKUDA TATSUO , USUI SHIGERU , NAKAMURA MINORU , YATAZAWA JUN
IPC分类号： B21K1/12 , B21J1/02 , B21J5/00 , B21K1/44 , C22C14/00 , C22F1/00 , C22F1/18
摘要： PROBLEM TO BE SOLVED: To provide a method capable of inexpensively manufacturing a stepped shaft component of titanium alloy.
SOLUTION: Plated layers 22 and 24 are formed on the surface 20 of a shaft material 18 in plating processes P4 and P5. Then, the shaft material 18 is forged into a stepped blank 50 in a cold or warm forging process P7. Since the plated layers 22 and 24 are interposed between a die 26 or 34 or 44 and the shaft material 18, the titanium alloy does not contact the die 26 or the like. This can satisfactorily restrain the shaft material 18 and the blank 32 or 42 or 50 from causing seizure with respect to the die 26 etc., whereby the stepped shaft blank 50 can be formed by forging so that the stepped shaft component 10 of titanium alloy can be manufactured inexpensively.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够廉价地制造钛合金的台阶轴部件的方法。解决方案：在电镀工艺P4和P5中，在轴材料18的表面20上形成镀层22和24。然后，在冷或锻造工艺P7中将轴材料18锻造成台阶坯料50。由于镀层22和24夹在模具26或34或44与轴材18之间，所以钛合金不与模具26等接触。这可以令人满意地限制轴材料18和坯料32或42或50相对于模具26等发生卡塞，从而可以通过锻造形成阶梯轴坯料50，使得钛合金的阶梯轴部件10能够廉价制造。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2002070845A BEARING MECHANISM, AND HARD DISK DRIVE MECHANISM AND POLYGON MIRROR DRIVE MECHANISM USING THE SAME 失效
公开(公告)号：JP2002070845A
公开(公告)日：2002-03-08
申请号：JP2000259751
申请日：2000-08-29
申请人： DAIDO STEEL CO LTD
发明人： OTSUKA SHIGERU , SHIMIZU SHIGETO , KATO MAKIO , YATAZAWA JUN
IPC分类号： G02B26/12 , F16C17/02 , F16C17/08 , F16C33/12 , G02B26/10 , G11B19/20 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide a bearing mechanism which can generate sufficient radial dynamic pressure even in comparatively low speed range, a hard disk drive mechanism and a polygon mirror drive mechanism using thereof. SOLUTION: On at least either of an outer circumferential face 2a of a first member 2 (a stationary shaft) or an inner circumferential face of an insertion bore 3a of a second member 3 (a sleeve) faced each other across a bearing clearance G, spot-scattering-shaped minute irregularities Q are dispersely formed and the surface roughness is adjusted in the range of 0.5 to 2.5 μm in maximum height Ry, then a sufficient radial dynamic pressure can be generated even in a comparatively low speed range. Further, since the sufficient radial dynamic pressure can be generated under low rotational speed as compared with a conventional bearing mechanism using a conventional dynamic pressure generation groove, a time during which the dynamic pressure is in insufficient condition in the process of start-up or shutdown of a rotational mechanism can be shortened and wear in a member in a radial dynamic pressure bearing part can be made to be hard to occur.

3. 发明专利

JP2002310144A BEARING MECHANISM, DRIVING MOTOR USING THE SAME, HARD DISK DRIVING MECHANISM AND POLYGON MIRROR DRIVE MECHANISM USING THE DRIVING MOTOR 失效
公开(公告)号：JP2002310144A
公开(公告)日：2002-10-23
申请号：JP2001112685
申请日：2001-04-11
申请人： DAIDO STEEL CO LTD
发明人： OTSUKA SHIGERU , SHIMIZU SHIGETO , KATO MAKIO , YATAZAWA JUN
IPC分类号： F16C17/10 , G11B19/20 , H02K5/16 , H02K7/08 , H02K15/14
摘要： PROBLEM TO BE SOLVED: To provide a bearing mechanism for raising radial dynamic pressure and for realizing the rotation with less whirling using the high radial dynamic pressure, by rationally arranging shapes of a thrust and a thrust dynamic pressure generating groove. SOLUTION: Any one of thrust surfaces of two first member side thrust surfaces 22a, 23a, and two second member side thrust surfaces 31c, 31d is provided with the spiral thrust dynamic pressure generating groove for generating the thrust dynamic pressure to form thrust bearing clearances GS1 and GS2. Any one of the outer peripheral surface 21a of a shaft part 21 and the inner peripheral surface 31a of a cylindrical part 31 is provided with a formation radial bearing clearance part GR along the circumferential direction of a herring bone-shape radial dynamic pressure generating groove for generating the radial dynamic pressure. A hydraulic fluid is led through the thrust bearing clearances GS1 and GS2, and flows into the radial bearing clearance GR to generate the radial dynamic pressure.

4. 发明专利

JP2002081439A SPINDLE MOTOR FOR HARD DISC DEVICE 失效
公开(公告)号：JP2002081439A
公开(公告)日：2002-03-22
申请号：JP2000266647
申请日：2000-09-04
申请人： DAIDO STEEL CO LTD
发明人： SHIMIZU SHIGETO , KATO MAKIO , YATAZAWA JUN , OTSUKA SHIGERU
IPC分类号： F16C17/10 , G11B19/20 , H02K5/16 , H02K7/08 , H02K21/22
摘要： PROBLEM TO BE SOLVED: To provide a spindle motor for hard disc device using a dynamic pressure fluid bearing allowing increasing sealability of fluid at a radial bearing part or a thrust bearing part. SOLUTION: This spindle motor for hard disc device generates a dynamic pressure in the fluid at the radial bearing part or the thrust bearing part to have a hub for mounting hard disc rotated by motor drive integrally with a bearing sleeve for a rigid shaft. A micro dimple is formed on a forming face of an introducing passage adapted to introduce the fluid as a dynamic pressure generator for the radial bearing part or the thrust bearing part.

5. 发明专利

JP2001220686A METHOD FOR PRODUCING MEMBER COATED WITH LUBRICATED LAYER AND MEMBER COATED WITH LUBRICATED LAYER 失效
公开(公告)号：JP2001220686A
公开(公告)日：2001-08-14
申请号：JP2000025755
申请日：2000-02-02
申请人： DAIDO STEEL CO LTD
发明人： WATABE KENJI , HISADA TAKEO , YATAZAWA JUN , KATO MAKIO
IPC分类号： F16C33/10 , C23C24/04 , F16C33/12 , F16C33/14 , F16N15/00
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a member coated with a lubricated layer capable of thinly and uniformly forming a lubricated layer of high performance based on a solid lubricant by a simple method. SOLUTION: Striking grains 150 are projected onto the surface 100a of the member 100 to be treated together with a solid lubricant 151, by which a lubricated layer 101 based on the solid lubricant 151 is formed on the surface 100a of the member 100 to be treated. By coating the circumferences of the striking grains 150 with the solid lubricant-coated layers 151, lubricant-coated grains B are made, and the lubricant-coated grains B can be projected onto the surface 100a of the member 100 to be treated.

6. 发明专利

JP2000213534A BEARING MECHANISM, AND HARD DISC DRIVE MECHANISM AND POLYGON MIRROR DRIVE MECHANISM USING THE BEARING MECHANISM 失效
公开(公告)号：JP2000213534A
公开(公告)日：2000-08-02
申请号：JP1912999
申请日：1999-01-27
申请人： DAIDO STEEL CO LTD
发明人： SHIMIZU SHIGETO , YATAZAWA JUN , HISADA TAKEO , KATO MAKIO
IPC分类号： B41J2/44 , F16C17/02 , F16C33/06 , F16C33/14 , G02B26/10 , G02B26/12 , H02K7/08
摘要： PROBLEM TO BE SOLVED: To provide a bearing mechanism for eliminating lubricating oil, for generating sufficient radial dynamic pressure even in a relatively low speed region, and facilitating surface working for generating radial dynamic pressure, and being manufactured inexpensively. SOLUTION: Dispersive fine irregularities are dispersively formed and surface- roughened on at least one side (hereinafter referred to as a roughened surface) of the outer peripheral surface 2a of a first member 2 and the inner peripheral surface 3a of a second member 3 facing with a bearing gap G there between, to adjust the center line mean roughness in a range of 0.1 μm-1.0 μm. Since the sufficient radial dynamic pressure can be generated by relatively low rotation speed according to this constitution, time in a dynamic pressure shortage condition can be shortened at the time of the start or stop of a rotation mechanism, to make member wear hard unoccur in a bearing part.

7. 发明专利

JP2011100673A Negative electrode structure of lithium-ion battery, and its manufacturing method 审中-公开
标题翻译：锂离子电池负极电极结构及其制造方法
公开(公告)号：JP2011100673A
公开(公告)日：2011-05-19
申请号：JP2009255750
申请日：2009-11-09
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： YATAZAWA JUN , TERAOKA HIROSHI
IPC分类号： H01M4/1395 , H01M4/134 , H01M4/36 , H01M4/38
CPC分类号： Y02P70/54
摘要： PROBLEM TO BE SOLVED: To provide a negative electrode structure of a lithium-ion battery, which can impart a large capacity intrinsic to a negative electrode active material and higher cycle characteristics, and to provide its manufacturing method, in the lithium-ion battery using the negative electrode active material composed of a Si-based material. SOLUTION: The manufacturing method includes: a thermal spray wire preparation step of preparing a thermal spraying wire in which inside a tubular body composed of a lithium active material or an alloy to contain the lithium active material, Si powder is filled; a step of turning a continuous combustion flame formed by pressurizing and firing a combustion gas to a substrate, and of supplying the thermal spraying wire in parallel with a direction in which the continuous combustion flame is extended; and a step of spraying and accumulating molten particles of the thermal spraying wire on the substrate. Thus, a distinctive texture in which sub-micron order fine spherical Si particulates are surrounded and aggregated like a dendrite by the lithium active material or the alloy containing the lithium active material is obtained. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种锂离子电池的负极结构，其能够赋予负极活性材料本征的大容量和更高的循环特性，并且提供其制造方法，在锂 - 使用由Si系材料构成的负极活性物质。解决方案：制造方法包括：制备热喷涂丝的制备步骤，其中在由锂活性物质或含有锂活性物质的合金构成的管状体内部填充Si粉末，将通过对燃烧气体进行加压和燃烧而形成的连续燃烧火焰转向基板的步骤，以及与连续燃烧火焰延伸的方向平行地供给热喷涂线的步骤; 以及将热喷涂线的熔融颗粒喷射并积聚在基板上的步骤。因此，获得亚微米级细球形Si颗粒被锂活性材料或含有锂活性材料的合金如枝晶包围和聚集的特征。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2002078279A SPINDLE MOTOR FOR HARD DISK DEVICE 失效
公开(公告)号：JP2002078279A
公开(公告)日：2002-03-15
申请号：JP2000252119
申请日：2000-08-23
申请人： DAIDO STEEL CO LTD
发明人： SHIMIZU SHIGETO , KATO MAKIO , YATAZAWA JUN
IPC分类号： F16C17/02 , F16C17/04 , F16C35/02 , H02K5/167 , H02K7/08
摘要： PROBLEM TO BE SOLVED: To provide a spindle motor for a hard disk device which adopts a dynamic pressure fluid bearing, which enables to fix a hub to a bearing sleeve in a condition its balance adjustment is made and prevents adhesive used for the fixing coming out into a thrust bearing part. SOLUTION: In the spindle motor for a hard disk device which drives a hub for mounting a hard disk with a bearing sleeve to rotate in one piece against a fixed shaft by generating dynamic pressure on fluid between the fixed shaft and the bearing sleeve around the fixed shaft, through holes which face the bearing sleeve are provided on the hub for mounting the hard disk, and the hub is bonded to the bearing sleeve by injecting adhesive from these through holes.

9. 发明专利

JP2000227119A FORMING METHOD FOR HERRINGBONE TYPE GROOVE PART OF DYNAMIC PRESSURE BEARING 失效
公开(公告)号：JP2000227119A
公开(公告)日：2000-08-15
申请号：JP2746799
申请日：1999-02-04
申请人： DAIDO STEEL CO LTD
发明人： SHIMIZU SHIGETO , KATO MAKIO , HISADA TAKEO , YATAZAWA JUN
IPC分类号： B24C1/04 , F16C33/14
摘要： PROBLEM TO BE SOLVED: To easily form a herringbone type groove having micro-shape at low cost. SOLUTION: When forming a herringbone type groove part on both an outer peripheral surface of a bearing shaft or an inner peripheral surface of a bearing sleeve of a dynamic bearing, the outer peripheral surface of the bearing shaft or the inner peripheral surface of the bearing sleeve is masked with a masking sheet having a prescribed shaped through hole and a herringbone type groove part having a specified shape is formed by projecting a small diameter particle such as silicon carbide to the masked face by precision shot peening.

10. 发明专利

JP2000015379A FORGING METHOD OF HIGH CARBON STEEL 失效
公开(公告)号：JP2000015379A
公开(公告)日：2000-01-18
申请号：JP18712098
申请日：1998-07-02
申请人： DAIDO STEEL CO LTD
发明人： OMA HIDEYUKI , YATAZAWA JUN
IPC分类号： B21J1/06 , B21J5/00 , B21J9/20 , C21D1/26 , C21D1/30 , C21D1/32 , C21D11/00
摘要： PROBLEM TO BE SOLVED: To easily manufacture even parts having a complicated shape, further to improve productivity and moreover not to generate the reduction of wear resistance owing to the generation of a decarburized layer, the complication of a process and the reduction of material yield. SOLUTION: This method comprises a softening and annealing process wherein a material to be forged consisting of a high carbon steel such as a cold die steel and a high speed tool steel is heated in an austenitic region and thereafter gradually cooled at a cooling speed of =200 deg.C to =750 deg.C to =200 deg.C to

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