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31. 发明授权

US07901139B2 Hydrodynamic bearing type rotary device 有权
标题翻译：流体动力轴承式旋转装置
公开(公告)号：US07901139B2
公开(公告)日：2011-03-08
申请号：US11808731
申请日：2007-06-12
申请人： Takafumi Asada , Hiroaki Saito , Daisuke Ito
发明人： Takafumi Asada , Hiroaki Saito , Daisuke Ito
IPC分类号： F16C32/06
CPC分类号： H02K7/085 , F16C17/107
摘要： In a hydrodynamic bearing type rotary device, relationships between the number of times of intermittence life, a bearing load, lubricating fluid viscosity, a bearing size, and the like are considered in order to provide a hydrodynamic bearing type rotary device which can secure appropriate intermittence life. In a hydrodynamic bearing type rotary device, a shaft is inserted into a bearing hole of a sleeve so as to be relatively rotatable. A value of a function (Nd) is set to be 100,000 or higher: wherein Nd=η/(S·Ff·P·D).
摘要翻译：在流体动力轴承型旋转装置中，考虑间歇寿命次数，轴承负荷，润滑液粘度，轴承尺寸等之间的关系，以提供能够确保适当的间歇性的流体动力轴承型旋转装置生活。在流体动力轴承型旋转装置中，将轴插入到套筒的轴承孔中以相对旋转。函数（Nd）的值设定为100,000以上：其中，Nd =＆eegr /（S·Ff·P·D）。

32. 发明授权

US07883270B2 Hydrodynamic bearing type rotary device and recording and reproducing apparatus including the same 有权
标题翻译：流体动力轴承型旋转装置及包括其的记录和再现装置
公开(公告)号：US07883270B2
公开(公告)日：2011-02-08
申请号：US11812170
申请日：2007-06-15
申请人： Takafumi Asada , Hiroyuki Kiriyama , Hiroaki Saito , Daisuke Ito
发明人： Takafumi Asada , Hiroyuki Kiriyama , Hiroaki Saito , Daisuke Ito
IPC分类号： F16C32/06
CPC分类号： F16C17/045 , F16C17/026 , F16C33/107 , F16C2370/12
摘要： A hydrodynamic bearing type rotary device is configured to prevent air from being trapped inside a bearing and causing the bearing to have oil film rupture and NPPR to deteriorate. In the device, a flange having a shape substantially like a disc is provided integrally with a shaft near its lower portion. A sleeve having a bearing hole is fitted to the shaft so as to be relatively rotatable. Hydrodynamic grooves are provided on at least one of an outer periphery of the shaft and an inner periphery of the sleeve. The flange forms a thrust bearing surface with a lower end surface of the sleeve. Hydrodynamic grooves are provided on at least one of the lower surface of the sleeve and an upper surface of the flange. During rotation of the bearing, the hydrodynamic grooves circulate the lubricant. Capillary pressures at respective portions in the lubricant circulation path have different magnitudes. The principle that air tends to move toward the portion having a smaller capillary pressure is utilized to make it difficult for the air to be trapped inside the bearing and to smoothly discharge the air.
摘要翻译：流体动力轴承型旋转装置被构造成防止空气被捕获在轴承内并导致轴承具有油膜破裂和NPPR劣化。在该装置中，具有基本上类似于盘的形状的凸缘与其下部附近的轴一体设置。具有轴承孔的套筒被安装在轴上以相对旋转。流体动力槽设置在轴的外周和套筒的内周中的至少一个上。凸缘形成具有套筒下端表面的止推轴承表面。流体动力槽设置在套筒的下表面和凸缘的上表面中的至少一个上。在轴承旋转期间，流体动力槽使润滑剂循环。润滑剂循环路径各部分的毛细管压力具有不同的大小。利用空气倾向于朝向具有较小毛细管压力的部分移动的原理，使得难以将空气捕获在轴承内并平滑地排出空气。

33. 发明申请

US20100085661A1 HYDRODYNAMIC BEARING DEVICE AND DISK ROTATION APPARATUS 失效
标题翻译：水力轴承装置和盘旋转装置
公开(公告)号：US20100085661A1
公开(公告)日：2010-04-08
申请号：US12412870
申请日：2009-03-27
申请人： Takafumi ASADA , Hiroaki Saito , Takao Yoshitsugu , Keigo Kusaka , Hiroyuki Kiriyama , Daisuke Ito
发明人： Takafumi ASADA , Hiroaki Saito , Takao Yoshitsugu , Keigo Kusaka , Hiroyuki Kiriyama , Daisuke Ito
IPC分类号： G11B17/02 , F16C32/06
CPC分类号： F16C17/107 , F16C33/103 , F16C33/107 , F16C2370/12
摘要： In a hydrodynamic bearing device in which a radial bearing face having a dynamic pressure generating groove on a shaft or an inner periphery of a sleeve is provided and a clearance between the shaft and the sleeve is filled with lubricant, an annular depression is provided on one end face of the sleeve adjacent to a rotor hub and a cover plate for covering the depression is attached to the sleeve so as to define a reservoir for the lubricant or air for the purpose of preventing such a risk that absence of an oil film occurs in clearances of a bearing of the hydrodynamic bearing device due to outflow of oil upon forcing of the oil by air received into the bearing. A step portion is provided on the other end face of the sleeve such that the step portion and the reservoir are communicated with each other by a communication hole. During operation of the hydrodynamic bearing device, air in the hydrodynamic bearing device reaches the reservoir via the communication hole so as to be discharged from the reservoir.
摘要翻译：在一种流体动力轴承装置中，其中设置有在轴上的动压产生槽或套筒的内周上的径向支承面，并且轴与套筒之间的间隙充满润滑剂，环形凹部设置在一个与转子轮毂相邻的套筒的端面和用于覆盖凹部的盖板附接到套筒上，以便限定用于润滑剂或空气的储存器，以便防止在油膜中不存在油膜的风险由于在接收到轴承中的空气迫使油被油流出时，流体动力轴承装置的轴承的间隙。台阶部设置在套筒的另一端面上，使得台阶部分和储存器通过连通孔相互连通。在流体动力轴承装置的操作期间，流体动力轴承装置中的空气经由连通孔到达储存器，以便从储存器排出。

34. 发明授权

US07674043B2 Hydrodynamic bearing rotary device 有权
标题翻译：流体动力轴承旋转装置
公开(公告)号：US07674043B2
公开(公告)日：2010-03-09
申请号：US11723316
申请日：2007-03-19
申请人： Takafumi Asada , Hiroaki Saito , Daisuke Itou , Hiroyuki Kiriyama , Tomoharu Takeda
发明人： Takafumi Asada , Hiroaki Saito , Daisuke Itou , Hiroyuki Kiriyama , Tomoharu Takeda
IPC分类号： F16C32/06
CPC分类号： F16C33/102 , F16C17/107 , F16C33/107 , F16C33/74 , F16C2370/12
摘要： An object of the present invention is to provide a hydrodynamic bearing type rotary device which can improve rotation performance, suppress a friction torque, and reduce power consumption of motor, and a recording and reproducing apparatus including the same. A shaft having a flange on one end and a hub on the other end is provided with a bearing of a sleeve so as to be rotatable. The sleeve includes a communication hole. A third gap between the hub and the sleeve end surface is a flow path, and is connected to the communication hole. Provided that a first gap between a thrust plate 4 and the flange 3 is S1, a second gap between the flange 3 and a lower end surface of the sleeve 1 is S2, and a third gap between the upper end surface of the sleeve 1 and the hub 7 is S3, widths of the gaps satisfy the relational expression, S3>(S1+S2).
摘要翻译：本发明的目的是提供一种能够提高旋转性能，抑制摩擦转矩并降低电动机的功率消耗的流体动力轴承型旋转装置，以及包括其的记录和再现装置。具有一端的凸缘和另一端的毂的轴设置有可旋转的套筒的轴承。套筒包括一个连通孔。轮毂和套筒端面之间的第三间隙是流动路径，并连接到连通孔。假设推力板4和凸缘3之间的第一间隙为S1，凸缘3与套筒1的下端面之间的第二间隙为S2，套管1的上端面与轮毂7是S3，间隙的宽度满足关系式S3>（S1 + S2）。

35. 发明申请

US20070140605A1 Hydrodynamic bearing type rotary device and recording and reproduction apparatus including the same 有权
标题翻译：流体动力轴承型旋转装置及包括其的记录和再现装置
公开(公告)号：US20070140605A1
公开(公告)日：2007-06-21
申请号：US11492166
申请日：2006-07-25
申请人： Takafumi Asada , Hiroaki Saito , Daisuke Ito
发明人： Takafumi Asada , Hiroaki Saito , Daisuke Ito
IPC分类号： F16C32/06
CPC分类号： F16C33/103 , F16C17/107 , F16C33/1085 , F16C33/745 , F16C2370/12
摘要： A hydrodynamic bearing type rotary device which allows bubbles in a lubricating fluid to be surely discharged from a bearing portion is provided. A hydrodynamic bearing mechanism 40 of the hydrodynamic bearing type rotary device is formed of a sleeve 1, a shaft 2, a flange 3, a thrust plate 4, a seal cap 5, and oil 6. A first fluid reservoir F is formed between the sleeve 1, the flange 3, and the thrust plate 4. A second fluid reservoir H is formed between the sleeve 1 and the seal cap 5. In the sleeve 1, a communication hole G extending along an axial direction is formed. The first fluid reservoir F and the second fluid reservoir H communicate with each other through the communication hole G. The oil 6 is filled between the members. A capillary pressure is higher in the first fluid reservoir F than in the second fluid reservoir H.
摘要翻译：提供了允许润滑流体中的气泡从轴承部确定地排出的流体动力轴承型旋转装置。流体动力轴承型旋转装置的流体动力轴承机构40由套筒1，轴2，凸缘3，止推板4，密封盖5和油6形成。第一流体储存器F形成在套筒1，凸缘3和止推板4.第二流体储存器H形成在套筒1和密封盖5之间。在套筒1中形成有沿轴向延伸的连通孔G. 第一流体储存器F和第二流体储存器H通过连通孔G彼此连通。油6填充在构件之间。第一流体储存器F中的毛细管压力高于第二流体储存器H中的毛细管压力。

36. 发明授权

US07622837B2 Hydrodynamic bearing device and spindle motor having the bearing device, and recording and/or reproducing apparatus using the spindle motor 失效
标题翻译：具有轴承装置的流体动力轴承装置和主轴电机，以及使用主轴电机的记录和/或再现装置
公开(公告)号：US07622837B2
公开(公告)日：2009-11-24
申请号：US11407060
申请日：2006-04-20
申请人： Hiroaki Saito , Takeyoshi Yamamoto , Takao Yoshitsugu
发明人： Hiroaki Saito , Takeyoshi Yamamoto , Takao Yoshitsugu
IPC分类号： H02K5/16
CPC分类号： F16C33/107 , F16C17/107 , H02K5/1675 , H02K7/085
摘要： A set of radial dynamic pressure generating grooves constitute a radial bearing, and an entire width (L) of the radial dynamic pressure generating groove is reduced. A set of thrust dynamic pressure generating grooves constituting a thrust bearing are formed so that an area where a maximal thrust dynamic pressure is generated (diameter) is increased, and a bearing angle stiffness of the thrust bearing is increased. The thrust bearing having the high bearing angle stiffness shares a moment load applied to a shaft to thereby compensate for a bearing angle stiffness of the radial bearing whose bearing stiffness is small because an entire width of the radial bearing is small. Thus, a thin-shaped hydrodynamic bearing capable of withstanding a large moment load is obtained.
摘要翻译：一组径向动压产生槽构成径向轴承，并且径向动压产生槽的整个宽度（L）减小。形成构成推力轴承的一组推力动压生成槽，使得产生最大推力动压（直径）的区域增加，并且推力轴承的轴承角刚度增加。具有高轴承角刚度的推力轴承共享施加到轴的力矩载荷，从而补偿径向轴承的轴承刚度，其轴承刚度较小，因为径向轴承的整个宽度较小。因此，获得能够承受大的力矩载荷的薄型流体动力轴承。

37. 发明申请

US20090107445A1 Recoil Starter 有权
标题翻译： Recoil起动机
公开(公告)号：US20090107445A1
公开(公告)日：2009-04-30
申请号：US12249223
申请日：2008-10-10
申请人： Shigemitsu Chigira , Tetsuya Kasamatsu , Kenta Shofuda , Hiroaki Saito , Yuki Hoshi
发明人： Shigemitsu Chigira , Tetsuya Kasamatsu , Kenta Shofuda , Hiroaki Saito , Yuki Hoshi
IPC分类号： F02N3/02
CPC分类号： F02N3/02 , F02N15/022 , Y10T74/13
摘要： According to an aspect of the present invention, there is provided a recoil starter including: a base plate that has a bearing portion formed therein; a rotary shaft that is supported by the bearing portion so as to pass through the base plate; a rope reel that is rotatably supported at one side of the base plate; a recoil rope that is wound around the rope reel; a recoil spiral spring that urges the rope reel to rewind the recoil rope; a damper spring that has one end connected to the rotary shaft and the other end connected to the rope reel; and a clutch mechanism that is disposed on an end of the rotary shaft at the other side of the base plate and that transfer a rotational force to an engine.
摘要翻译：根据本发明的一个方面，提供了一种反冲起动器，包括：底板，其中形成有轴承部分; 旋转轴，其由所述轴承部支撑以穿过所述基板; 可旋转地支撑在基板的一侧的绳卷轴; 缠绕在绳卷轴上的反冲绳; 促使绳卷筒重绕反冲绳的反冲螺旋弹簧; 阻尼器弹簧，其一端连接到旋转轴，另一端连接到绳索卷轴; 以及离合器机构，其设置在所述基板的另一侧的所述旋转轴的端部，并且将旋转力传递到发动机。

38. 发明申请

US20090048445A1 Method of Synthesizing Quinoxaline Derivative by Microwave Irradiation 失效
标题翻译：通过微波照射合成喹喔啉衍生物的方法
公开(公告)号：US20090048445A1
公开(公告)日：2009-02-19
申请号：US11991799
申请日：2006-10-16
申请人： Toru Takabatake , Hiroaki Saito , Yusuke Sumiyoshi
发明人： Toru Takabatake , Hiroaki Saito , Yusuke Sumiyoshi
IPC分类号： C07D241/36 , C07D271/12
CPC分类号： C07D241/52
摘要： There is disclosed a method of synthesizing a quinoxaline derivative in which toxicity, corrosiveness and permeation are low and which is excellent in safety and which attains a reduced reaction time, a greatly improved yield and excellent economical efficiency. The object is achieved by a method of synthesizing a quinoxaline derivative which comprises adsorbing a benzofuroxan derivative and a β-diketone derivative on a solid support, and then heating the derivatives in a solid state by microwave irradiation to dehydrocyclize them.
摘要翻译：公开了一种合成喹喔啉衍生物的方法，其中毒性，腐蚀性和渗透性低，安全性优异，反应时间缩短，产率大幅提高，经济效益优良。该目的通过合成喹喔啉衍生物的方法来实现，该方法包括将苯并呋喃衍生物和β-二酮衍生物吸附在固体支持物上，然后通过微波辐射加热固体衍生物以使其脱氢环化。

39. 发明授权

US07413954B2 Insulated gate semiconductor device and manufacturing method of the same 有权
标题翻译：绝缘栅半导体器件及其制造方法相同
公开(公告)号：US07413954B2
公开(公告)日：2008-08-19
申请号：US11230538
申请日：2005-09-21
申请人： Hirotoshi Kubo , Junichiro Tojo , Hiroaki Saito , Masahito Onda , Satoshi Iwata , Masamichi Yanagida
发明人： Hirotoshi Kubo , Junichiro Tojo , Hiroaki Saito , Masahito Onda , Satoshi Iwata , Masamichi Yanagida
IPC分类号： H01L21/336
CPC分类号： H01L29/7813 , H01L29/42368 , H01L29/66734
摘要： A capacity layer is formed of non-doped polysilicon. Unlike capacity layers formed of an oxide film, generation of seams and the like can be suppressed and thereby a stable capacity layer can be formed. Moreover, polysilicon used as a capacity layer may be doped polysilicon, and an oxide film formed on the surface of the polysilicon also serves as a capacity film. Thus, provision of an insulated gate device featuring low capacity is made possible.
摘要翻译：电容层由非掺杂多晶硅形成。与由氧化膜形成的容量层不同，可以抑制接缝等的产生，从而可以形成稳定的电容层。此外，用作电容层的多晶硅可以是掺杂多晶硅，并且形成在多晶硅表面上的氧化膜也用作容量膜。因此，提供具有低容量的绝缘栅极器件成为可能。

40. 发明授权

US06939776B2 Semiconductor device and a method of fabricating the same 失效
标题翻译：半导体装置及其制造方法
公开(公告)号：US06939776B2
公开(公告)日：2005-09-06
申请号：US09988272
申请日：2001-11-19
申请人： Hirotoshi Kubo , Masanao Kitagawa , Masahito Onda , Hiroaki Saito , Eiichiroh Kuwako
发明人： Hirotoshi Kubo , Masanao Kitagawa , Masahito Onda , Hiroaki Saito , Eiichiroh Kuwako
IPC分类号： H01L21/336 , H01L29/10 , H01L29/423 , H01L29/78 , H01L21/76
CPC分类号： H01L29/7802 , H01L29/1095 , H01L29/41766 , H01L29/4236 , H01L29/66719 , H01L29/66727 , H01L29/66734 , H01L29/7813
摘要： A power MOSFET comprises: a semiconductor substrate 21 of a first conduction type; a drain layer 22 of the first conduction type and formed on a surface layer of the substrate; a gate insulating film 25 formed in a partial region on the drain layer 22; a gate electrode 26 formed on the gate insulating film 25; an insulating film 27 formed on the gate electrode; a side wall insulator 28 formed on side walls of the gate insulating film 25, the gate electrode 26, and the insulating film 27; a recess formed on the drain layer 22 and in a region other than a region where the gate electrode 25 and the side wall insulator 28 are formed; a channel layer 23 of a second conduction type opposite to the first conduction type and formed in a range from the region where the recess is formed to a vicinity of the region where the gate electrode 26 is formed; a source region layer 24 of the one conduction type and formed on the channel layer 23 outside the recess; and a wiring layer 29 formed to cover the channel layer 23 which is exposed through the recess, the side wall insulator 28, and the insulating film.
摘要翻译：功率MOSFET包括：第一导电类型的半导体衬底21; 第一导电类型的漏极层22，并形成在衬底的表面层上; 形成在漏极层22的局部区域中的栅极绝缘膜25; 形成在栅极绝缘膜25上的栅电极26; 形成在栅电极上的绝缘膜27; 形成在栅极绝缘膜25，栅电极26和绝缘膜27的侧壁上的侧壁绝缘体28; 在漏极层22上形成的凹部和形成有栅电极25和侧壁绝缘体28的区域以外的区域; 与第一导电型相反的第二导电类型的沟道层23形成在从形成凹部的区域到形成栅电极26的区域附近的范围内; 一个导电类型的源极区24，并形成在凹槽外部的沟道层23上; 以及形成为覆盖通过凹部暴露的沟道层23，侧壁绝缘体28和绝缘膜的布线层29。

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