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1. 发明授权

US08366322B2 Shaft member for fluid dynamic bearing device 有权
标题翻译：流体动力轴承装置用轴构件
公开(公告)号：US08366322B2
公开(公告)日：2013-02-05
申请号：US13281011
申请日：2011-10-25
申请人： Kenji Hibi , Yasuhiro Yamamoto
发明人： Kenji Hibi , Yasuhiro Yamamoto
IPC分类号： F16C32/06 , F16C33/00
CPC分类号： F16C33/12 , F16C17/02 , F16C17/026 , F16C33/107 , F16C33/14 , F16C2204/60 , F16C2220/40 , F16C2220/44 , F16C2220/60 , F16C2220/70 , F16C2223/14
摘要： A shaft member for a fluid dynamic bearing device that has a recess to cause a dynamic pressure effect of a fluid in a bearing clearance, which is formed on it by rolling, and where a surface layer portion of the recess and a surface layer portion of a surrounding region of the recess has a nitride layer, and where nitrogen is diffused and penetrated in a material of the shaft member that is formed by nitriding after the rolling.
摘要翻译：一种用于流体动力轴承装置的轴构件，其具有凹部，以在轴承间隙中形成流体的动态压力效应，所述轴承间隙通过滚动形成在其上，并且其中凹部的表面层部分和表面层部分凹部的周围区域具有氮化物层，并且氮气在轧制后通过氮化形成的轴构件的材料中扩散并渗透。

2. 发明申请

US20100166343A1 SHAFT MEMBER FOR FLUID DYNAMIC BEARING DEVICE 有权
标题翻译：用于流体动力轴承装置的轴件
公开(公告)号：US20100166343A1
公开(公告)日：2010-07-01
申请号：US12160654
申请日：2006-12-26
申请人： Kenji Hibi , Yasuhiro Yamamoto
发明人： Kenji Hibi , Yasuhiro Yamamoto
IPC分类号： F16C32/06
CPC分类号： F16C33/12 , F16C17/02 , F16C17/026 , F16C33/107 , F16C33/14 , F16C2204/60 , F16C2220/40 , F16C2220/44 , F16C2220/60 , F16C2220/70 , F16C2223/14
摘要： Provided is a shaft member for a fluid dynamic bearing device, which is excellent in wear resistance and which can exert a high dynamic pressure effect. A shaft material (11) is rolled to form a recess (7) for causing a dynamic pressure effect of a lubricating oil in a radial bearing clearance (6). In this case, in a surface layer portion (14) of the recess (7) to be formed in an outer peripheral surface (11a) of the shaft material (11), a first hardened layer (14a) is formed by rolling. At the same time, also in a surface layer portion (15) of a surrounding region (8) of the recess (7), a first hardened layer (15a) is formed by rolling at a partial region thereof. After the recess (7) is formed by the rolling, barreling is applied to the shaft material (11). As a result, an outermost surface layer portion of the surface layer portion (15) is formed with a second hardened layer (15b) by the barreling. A hardness of the second hardened layer (15b) formed in the surrounding region (8) is higher by 50 Hv or more and 200 Hv or less than that of the first hardened layer (14a) formed in the recess (7).
摘要翻译：提供了一种用于流体动力轴承装置的轴构件，其耐磨性优异并且可以施加高动态压力效果。轴材料（11）被卷起以形成用于在径向轴承间隙（6）中产生润滑油的动态压力效应的凹部（7）。在这种情况下，在要形成在轴材料（11）的外周面（11a）中的凹部（7）的表层部（14）中，通过轧制形成第一硬化层（14a）。同时，在凹部（7）的周围区域（8）的表层部（15）中，通过在其部分区域进行轧制来形成第一硬化层（15a）。在通过轧制形成凹部（7）之后，将滚筒施加到轴材料（11）上。结果，表面层部分（15）的最表面层部分通过滚筒形成有第二硬化层（15b）。形成在周围区域（8）中的第二硬化层（15b）的硬度比形成在凹部（7）中的第一硬化层（14a）的硬度高出50Hv以上且200Hv以下。

3. 发明授权

US08419281B2 Bearing member and method for manufacturing the same, and bearing unit having bearing member and method for manufacturing the same 有权
标题翻译：轴承构件及其制造方法，以及具有轴承构件的轴承单元及其制造方法
公开(公告)号：US08419281B2
公开(公告)日：2013-04-16
申请号：US12066463
申请日：2006-09-05
申请人： Kenji Hibi , Yasuhiro Yamamoto , Tetsuya Yamamoto , Mitsuo Sasabe
发明人： Kenji Hibi , Yasuhiro Yamamoto , Tetsuya Yamamoto , Mitsuo Sasabe
IPC分类号： F16C32/06 , F16C31/02 , F16C33/02 , B29D33/00
CPC分类号： F16C33/74 , F16C33/20 , F16C33/208 , F16C2208/48 , F16C2220/04 , F16C2220/20 , F16C2370/12 , Y10T29/49668
摘要： An inner periphery of a molded part having a step from an inner periphery of an electroformed part is molded to a nonconductive coating which covers the surface of a master. When the nonconductive coating is removed, a radial clearance having a diameter greater than that of a bearing clearance is created between the inner periphery of the molded part, which is exposed to the interior, and an outer periphery of a shaft member. A bearing member which forms the bearing and radial clearance with the shaft member is manufactured by performing electroforming on the master with the nonconductive coating formed on part of the surface of the master, thereby forming the electroformed part; then injection molding the bearing member with the electroformed part and the nonconductive coating on the surface of the master inserted into a cavity; and then removing the nonconductive coating from the bearing member.
摘要翻译：具有从电铸部件的内周的台阶的成型部件的内周成型为覆盖母板表面的非导电涂层。当除去非导电涂层时，在暴露于内部的模制部件的内周和轴构件的外周之间产生具有大于轴承间隙的直径的径向间隙。与轴构件形成轴承和径向间隙的轴承构件通过在主体上进行电铸而在主体的表面的一部分上形成非导电涂层来制造，从而形成电铸部件; 然后用电铸部分注入模制轴承部件，将主导体表面上的非导电涂层注入模腔; 然后从承载构件上去除非导电涂层。

4. 发明申请

US20120093447A1 SHAFT MEMBER FOR FLUID DYNAMIC BEARING DEVICE 有权
标题翻译：用于流体动力轴承装置的轴件
公开(公告)号：US20120093447A1
公开(公告)日：2012-04-19
申请号：US13281011
申请日：2011-10-25
申请人： Kenji Hibi , Yasuhiro Yamamoto
发明人： Kenji Hibi , Yasuhiro Yamamoto
IPC分类号： F16C32/06 , F16C3/02
CPC分类号： F16C33/12 , F16C17/02 , F16C17/026 , F16C33/107 , F16C33/14 , F16C2204/60 , F16C2220/40 , F16C2220/44 , F16C2220/60 , F16C2220/70 , F16C2223/14
摘要： A shaft member for a fluid dynamic bearing device that has a recess to cause a dynamic pressure effect of a fluid in a bearing clearance, which is formed on it by rolling, and where a surface layer portion of the recess and a surface layer portion of a surrounding region of the recess has a nitride layer, and where nitrogen is diffused and penetrated in a material of the shaft member that is formed by nitriding after the rolling.
摘要翻译：一种用于流体动力轴承装置的轴构件，其具有凹部，以在轴承间隙中形成流体的动态压力效应，所述轴承间隙通过滚动形成在其上，并且其中凹部的表面层部分和表面层部分凹部的周围区域具有氮化物层，并且氮气在轧制后通过氮化形成的轴构件的材料中扩散并渗透。

5. 发明申请

US20110216992A1 ELECTROFORMED BEARING AND METHOD OF MANUFACTURING SAME 有权
标题翻译：电动轴承及其制造方法
公开(公告)号：US20110216992A1
公开(公告)日：2011-09-08
申请号：US12678192
申请日：2008-09-11
申请人： Isao Komori , Yasuhiro Yamamoto , Kenji Hibi
发明人： Isao Komori , Yasuhiro Yamamoto , Kenji Hibi
IPC分类号： F16C19/04 , B29C45/14
CPC分类号： B29C45/14778 , B29C45/14311 , B29K2705/00 , F16C17/102 , F16C33/107 , F16C33/201 , F16C2370/12
摘要： Fine particles (6) are retained by an electroformed portion (4) in a dispersed state, and the fine particles (6) exposed from an outer peripheral surface (4a2) of the electroformed portion (4) are molten so as to form micro projections (60) integrated with a resin portion (5). The micro projections (60) enters into fine-particle traces (4c) formed in the electroformed portion (4) to exert an anchor effect, to thereby increase a fixation force between the resin portion (5) and the electroformed portion (4).
摘要翻译：细颗粒（6）以分散状态的电铸部分（4）保持，并且从电铸部分（4）的外周表面（4a2）露出的细颗粒（6）熔化，以形成微突起（60）与树脂部分（5）成一体。微突起（60）进入形成在电铸部分（4）中的微细颗粒痕迹（4c）以发挥锚固作用，从而增加树脂部分（5）和电铸部分（4）之间的固定力。

6. 发明申请

US20090148084A1 Fluid Dynamic Bearing Device 审中-公开
标题翻译：流体动力轴承装置
公开(公告)号：US20090148084A1
公开(公告)日：2009-06-11
申请号：US11628670
申请日：2006-06-02
申请人： Isao Komori , Kenji Hibi , Yasuhiro Yamamoto
发明人： Isao Komori , Kenji Hibi , Yasuhiro Yamamoto
IPC分类号： F16C32/06
CPC分类号： F16C33/1075 , F16C17/02 , F16C17/107 , F16C33/107 , F16C2370/12 , G11B19/2009 , H02K5/1675 , H02K7/08
摘要： A fluid dynamic bearing device equipped with a shaft member of high strength and capable of maintaining high bearing performance is provided at low cost. A shaft blank (23) has, as an integrated unit, a shaft part (23a) formed of a material of a higher strength than resin, and a protruding part (23b) protruding radially outwards from the shaft part (23a). A shaft member (2) is equipped with the shaft blank (23) and a resin portion (24) covering at least one end surface of the protruding part (23b) of the shaft blank (23) and facing a thrust bearing gap.
摘要翻译：以低成本提供了具有高强度并能够保持高轴承性能的轴构件的流体动力轴承装置。轴坯（23）作为一体的单元具有由树脂强度高的材料形成的轴部（23a）和从轴部（23a）径向向外突出的突出部（23b）。轴构件（2）配备有轴坯（23）和覆盖轴坯（23）的突出部（23b）的至少一个端面并面向推力轴承间隙的树脂部（24）。

7. 发明授权

US08469596B2 Electroformed bearing and method of manufacturing same 有权
标题翻译：电铸轴承及其制造方法
公开(公告)号：US08469596B2
公开(公告)日：2013-06-25
申请号：US12678192
申请日：2008-09-11
申请人： Isao Komori , Yasuhiro Yamamoto , Kenji Hibi
发明人： Isao Komori , Yasuhiro Yamamoto , Kenji Hibi
IPC分类号： F16C33/02
CPC分类号： B29C45/14778 , B29C45/14311 , B29K2705/00 , F16C17/102 , F16C33/107 , F16C33/201 , F16C2370/12
摘要： Fine particles (6) are retained by an electroformed portion (4) in a dispersed state, and the fine particles (6) exposed from an outer peripheral surface (4a2) of the electroformed portion (4) are molten so as to form micro projections (60) integrated with a resin portion (5). The micro projections (60) enters into fine-particle traces (4c) formed in the electroformed portion (4) to exert an anchor effect, to thereby increase a fixation force between the resin portion (5) and the electroformed portion (4).
摘要翻译：细颗粒（6）以分散状态的电铸部分（4）保持，并且从电铸部分（4）的外周表面（4a2）露出的细颗粒（6）熔化，以形成微突起（60）与树脂部分（5）成一体。微突起（60）进入形成在电铸部分（4）中的微细颗粒痕迹（4c）以发挥锚固作用，从而增加树脂部分（5）和电铸部分（4）之间的固定力。

8. 发明授权

US08104963B2 Shaft member for fluid dynamic bearing device 有权
标题翻译：流体动力轴承装置用轴构件
公开(公告)号：US08104963B2
公开(公告)日：2012-01-31
申请号：US12160654
申请日：2006-12-26
申请人： Kenji Hibi , Yasuhiro Yamamoto
发明人： Kenji Hibi , Yasuhiro Yamamoto
IPC分类号： F16C32/06 , F16C33/12
CPC分类号： F16C33/12 , F16C17/02 , F16C17/026 , F16C33/107 , F16C33/14 , F16C2204/60 , F16C2220/40 , F16C2220/44 , F16C2220/60 , F16C2220/70 , F16C2223/14
摘要： Provided is a shaft member for a fluid dynamic bearing device, which is excellent in wear resistance and which can exert a high dynamic pressure effect. A shaft material (11) is rolled to form a recess (7) for causing a dynamic pressure effect of a lubricating oil in a radial bearing clearance (6). In this case, in a surface layer portion (14) of the recess (7) to be formed in an outer peripheral surface (11a) of the shaft material (11), a first hardened layer (14a) is formed by rolling. At the same time, also in a surface layer portion (15) of a surrounding region (8) of the recess (7), a first hardened layer (15a) is formed by rolling at a partial region thereof. After the recess (7) is formed by the rolling, barreling is applied to the shaft material (11). As a result, an outermost surface layer portion of the surface layer portion (15) is formed with a second hardened layer (15b) by the barreling. A hardness of the second hardened layer (15b) formed in the surrounding region (8) is higher by 50 Hv or more and 200 Hv or less than that of the first hardened layer (14a) formed in the recess (7).
摘要翻译：提供了一种用于流体动力轴承装置的轴构件，其耐磨性优异并且可以施加高动态压力效果。轴材料（11）被卷起以形成用于在径向轴承间隙（6）中产生润滑油的动态压力效应的凹部（7）。在这种情况下，在要形成在轴材料（11）的外周面（11a）中的凹部（7）的表层部（14）中，通过轧制形成第一硬化层（14a）。同时，在凹部（7）的周围区域（8）的表层部（15）中，通过在其部分区域进行轧制来形成第一硬化层（15a）。在通过轧制形成凹部（7）之后，将滚筒施加到轴材料（11）上。结果，表面层部分（15）的最表面层部分通过滚筒形成有第二硬化层（15b）。形成在周围区域（8）中的第二硬化层（15b）的硬度比形成在凹部（7）中的第一硬化层（14a）的硬度高了50Hv以上且200Hv以下。

9. 发明申请

US20090046960A1 FLUID DYNAMIC BEARING DEVICE 有权
标题翻译：流体动力轴承装置
公开(公告)号：US20090046960A1
公开(公告)日：2009-02-19
申请号：US12281431
申请日：2007-02-16
申请人： Kenji Hibi , Kenji Ito , Yasuhiro Yamamoto , Hiroshi Niwa , Isao Komori , Tetsuya Yamamoto
发明人： Kenji Hibi , Kenji Ito , Yasuhiro Yamamoto , Hiroshi Niwa , Isao Komori , Tetsuya Yamamoto
IPC分类号： F16C32/06 , H02K7/08
CPC分类号： H02K7/085 , F16C17/02 , F16C17/102 , F16C17/107 , F16C33/14 , F16C2220/82 , F16C2223/12 , F16C2223/14 , F16C2223/70 , F16C2226/14 , F16C2370/12
摘要： A fluid dynamic bearing device which can exhibit high bearing performance is provided at low costs by forming a highly accurate bearing gap.At least a region in the outer circumferential surface of a shaft 2 which faces the radial bearing gap is constituted of an electroformed part 11, and the region of the shaft 2 excluding the electroformed part 11 is constituted of a resin portion 12.
摘要翻译：通过形成高度精确的轴承间隙，可以以低成本提供可显示高轴承性能的流体动力轴承装置。轴2的面向径向轴承间隙的外周面的至少一个区域由电铸部11构成，除了电铸部11以外的轴2的区域由树脂部12构成。

10. 发明授权

US08876386B2 Fluid dynamic bearing device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US08876386B2
公开(公告)日：2014-11-04
申请号：US12281431
申请日：2007-02-16
申请人： Kenji Hibi , Kenji Ito , Yasuhiro Yamamoto , Hiroshi Niwa , Isao Komori , Tetsuya Yamamoto
发明人： Kenji Hibi , Kenji Ito , Yasuhiro Yamamoto , Hiroshi Niwa , Isao Komori , Tetsuya Yamamoto
IPC分类号： F16C32/06 , H02K5/16 , F16C33/14 , H02K7/08 , F16C17/02
CPC分类号： H02K7/085 , F16C17/02 , F16C17/102 , F16C17/107 , F16C33/14 , F16C2220/82 , F16C2223/12 , F16C2223/14 , F16C2223/70 , F16C2226/14 , F16C2370/12
摘要： A fluid dynamic bearing device which can exhibit high bearing performance is provided at low costs by forming a highly accurate bearing gap. At least a region in the outer circumferential surface of a shaft which faces the radial bearing gap is constituted of an electroformed part, and the region of the shaft excluding the electroformed part is constituted of a resin portion.
摘要翻译：通过形成高度精确的轴承间隙，可以以低成本提供可显示高轴承性能的流体动力轴承装置。至少在轴的外周面中的面向径向轴承间隙的区域由电铸部构成，并且除了电铸部以外的轴的区域由树脂部构成。

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