公开(公告)号：US08284515B2

公开(公告)日：2012-10-09

申请号：US13197820

申请日：2011-08-04

申请人： Yoichi Sekii ,  Hironao Sasaki ,  Takuro Iguchi ,  Hironori Ando ,  Toshihiro Akiyama ,  Takunori Shinao ,  Yuichi Shigematsu ,  Yasutaka Ino ,  Tatsuyoshi Nakatani

发明人： Yoichi Sekii ,  Hironao Sasaki ,  Takuro Iguchi ,  Hironori Ando ,  Toshihiro Akiyama ,  Takunori Shinao ,  Yuichi Shigematsu ,  Yasutaka Ino ,  Tatsuyoshi Nakatani

IPC分类号： G11B17/08

CPC分类号： G11B19/2036 ,  F16C17/105 ,  F16C17/107 ,  F16C33/107 ,  F16C2370/12 ,  G11B17/0287

摘要： A fluid dynamic bearing mechanism includes a stationary shaft, a sleeve portion arranged to rotate with respect to the shaft, and a thrust portion including an upper end surface arranged oppose to a lower end surface of the sleeve portion. An inside surface of the thrust portion includes an inside surface contact portion arranged in contact with an outside surface of the shaft, and an inside surface lower non-contact portion spaced away from the outside surface of the shaft, and arranged to extend downward from a lower end of the inside surface contact portion. An outside surface of the thrust portion includes an outside surface inclined portion arranged in contact with an interface of a lubricating oil. The lower end of the inside surface contact portion is arranged at a level axially higher than that of a lower end of the outside surface inclined portion.

摘要翻译： 流体动力轴承机构包括固定轴，布置成相对于轴旋转的套筒部分和包括与套筒部分的下端表面相对布置的上端表面的推力部分。 推力部的内表面包括与轴的外表面接触的内表面接触部分和与轴的外表面间隔开的内表面下非接触部分，并且布置成从轴向向下延伸 内表面接触部分的下端。 推力部的外表面包括与润滑油的界面接触配置的外表面倾斜部。 内表面接触部分的下端设置在比外表面倾斜部分的下端更高的轴向上。

公开(公告)号：US08284513B2

公开(公告)日：2012-10-09

申请号：US12765122

申请日：2010-04-22

申请人： Yoichi Sekii ,  Hironao Sasaki ,  Takuro Iguchi ,  Hironori Ando ,  Toshihiro Akiyama ,  Takunori Shinao ,  Yuichi Shigematsu

发明人： Yoichi Sekii ,  Hironao Sasaki ,  Takuro Iguchi ,  Hironori Ando ,  Toshihiro Akiyama ,  Takunori Shinao ,  Yuichi Shigematsu

IPC分类号： G11B17/08

CPC分类号： F16C17/107 ,  F16C17/105 ,  F16C33/107 ,  F16C33/745 ,  F16C43/02 ,  F16C2370/12 ,  G11B17/0287

摘要： A bearing mechanism includes a shaft, a sleeve portion, a thrust portion, and a cover portion. Lubricating oil is arranged in a communicating channel in the sleeve portion, a thrust gap between the sleeve portion and the thrust portion, and a tapered gap between an outside surface of the thrust portion and the cover portion. A lower end opening of the communicating channel is defined in an outer circumferential portion of a lower surface of the sleeve portion radially outward of the thrust gap. A radially outermost portion of the thrust portion is arranged either tangent to a wall surface of the communicating channel or closer to a central axis than the wall surface. The tapered gap is arranged closer to the central axis than a radially outermost point of the wall surface. The outer circumferential portion and the cover portion define a guide gap therebetween.

摘要翻译： 轴承机构包括轴，套筒部分，推力部分和盖部分。 润滑油布置在套筒部分的连通通道中，套筒部分和推力部分之间的推力间隙以及推力部分的外表面与盖部分之间的锥形间隙。 连通通道的下端开口被限定在径向向外推动间隙的套筒部分的下表面的外圆周部分中。 推力部分的径向最外部分布置成与连通通道的壁表面相切或者比壁表面更靠近中心轴线。 锥形间隙布置成比壁表面的径向最外侧更靠近中心轴线。 外周部和盖部在其间限定引导间隙。

公开(公告)号：US08144423B2

公开(公告)日：2012-03-27

申请号：US12400884

申请日：2009-03-10

申请人： Yoichi Sekii ,  Hironao Sasaki

发明人： Yoichi Sekii ,  Hironao Sasaki

IPC分类号： G11B17/02 ,  F16C32/06

CPC分类号： G11B17/0287 ,  F16C17/105 ,  F16C17/107 ,  F16C33/107 ,  F16C33/1085 ,  F16C33/745 ,  F16C2370/12

摘要： A fluid dynamic pressure bearing device includes a shaft, an annular member, and a rotating member. The annular member is fixed to or seamlessly defined with the shaft and is radially opposed to the rotating member. The annular member and the rotating member are covered with a seal member. A first gap is defined between the seal member and the annular member. A second gap is defined between the rotating member and the seal member. A third gap is defined between the annular member and the rotating member. The first gap preferably has a width smaller than that of the second gap but greater than that of the third gap.

摘要翻译： 流体动压轴承装置包括轴，环形构件和旋转构件。 环形构件固定到轴上或与轴无缝地限定，并且与旋转构件径向相对。 环形构件和旋转构件被密封构件覆盖。 在密封构件和环形构件之间限定第一间隙。 在旋转构件和密封构件之间限定第二间隙。 在环形构件和旋转构件之间限定第三间隙。 第一间隙优选具有小于第二间隙的宽度，但大于第三间隙的宽度。

公开(公告)号：US20090231754A1

公开(公告)日：2009-09-17

申请号：US12400884

申请日：2009-03-10

申请人： Yoichi Sekii ,  Hironao Sasaki

发明人： Yoichi Sekii ,  Hironao Sasaki

IPC分类号： G11B17/02 ,  F16C32/06

CPC分类号： G11B17/0287 ,  F16C17/105 ,  F16C17/107 ,  F16C33/107 ,  F16C33/1085 ,  F16C33/745 ,  F16C2370/12

摘要： A fluid dynamic pressure bearing device includes a shaft, an annular member, and a rotating member. The annular member is fixed to or seamlessly defined with the shaft and is radially opposed to the rotating member. The annular member and the rotating member are covered with a seal member. A first gap is defined between the seal member and the annular member. A second gap is defined between the rotating member and the seal member. A third gap is defined between the annular member and the rotating member. The first gap preferably has a width smaller than that of the second gap but greater than that of the third gap.

摘要翻译： 流体动压轴承装置包括轴，环形构件和旋转构件。 环形构件固定到轴上或与轴无缝地限定，并且与旋转构件径向相对。 环形构件和旋转构件被密封构件覆盖。 在密封构件和环形构件之间限定第一间隙。 在旋转构件和密封构件之间限定第二间隙。 在环形构件和旋转构件之间限定第三间隙。 第一间隙优选具有小于第二间隙的宽度，但大于第三间隙的宽度。

公开(公告)号：US20090279816A1

公开(公告)日：2009-11-12

申请号：US12517636

申请日：2007-12-05

申请人： Masato Gomyo ,  Hironao Sasaki

发明人： Masato Gomyo ,  Hironao Sasaki

IPC分类号： F16C32/06 ,  H02K7/08 ,  G11B5/012

CPC分类号： F16C33/109 ,  C10M105/54 ,  C10M105/58 ,  C10M105/68 ,  C10M105/70 ,  C10M105/72 ,  C10M105/74 ,  C10M109/02 ,  C10M171/00 ,  C10M2211/0445 ,  C10M2215/023 ,  C10M2215/061 ,  C10M2215/1006 ,  C10M2215/2203 ,  C10M2215/2245 ,  C10M2215/2265 ,  C10M2219/0406 ,  C10M2219/081 ,  C10N2220/04 ,  C10N2230/12 ,  C10N2230/28 ,  C10N2240/204 ,  C10N2280/00 ,  F16C17/107 ,  F16C33/10 ,  F16C33/12 ,  F16C2204/20 ,  F16C2370/12 ,  G11B19/2009 ,  H02K7/085

摘要： In a fluid dynamic pressure bearing device using ionic liquid as lubricant, a shaft member and a sleeve member are not corroded by the ionic liquid and static electricity generated is not accumulated. Aluminum with an oxide film formed on its surface is used as the material of the shaft member 11 and the sleeve member 12 and aluminum exposure portions B1, B2 are provided on the surfaces making contact with the ionic liquid, other than dynamic pressure generating grooves, of the shaft member 11 and the sleeve member 12. Accordingly, the shaft member 11 and the sleeve member 12 are kept substantially in the same electric potential through the ionic liquid.

摘要翻译： 在使用离子液体作为润滑剂的流体动压轴承装置中，轴构件和套筒构件不被离子液体腐蚀，并且不产生静电。 在其表面形成有氧化膜的铝用作轴构件11的材料，并且套筒构件12和铝暴露部分B1，B2设置在与动态压力产生槽以外的离子液体接触的表面上， 轴构件11和套筒构件12.因此，轴构件11和套筒构件12通过离子液体保持基本上相同的电位。

公开(公告)号：US06280910B1

公开(公告)日：2001-08-28

申请号：US09547135

申请日：2000-04-11

申请人： Tetsuya Iida ,  Takanobu Higuchi ,  Hironao Sasaki ,  Kunizo Ogoshi

发明人： Tetsuya Iida ,  Takanobu Higuchi ,  Hironao Sasaki ,  Kunizo Ogoshi

IPC分类号： G03C516

CPC分类号： G11B7/245 ,  G03F7/0017 ,  G03F7/022 ,  G11B7/2531 ,  G11B7/254 ,  G11B7/258

摘要： An optical disc is prepared by the steps of coating a positive photoresist comprising a photosensitive material and a base resin, satisfying a value of A in a formula A=(a1−a3) m10 and a value of B in a formula B=(a2m20+a3m10), being constant, is in a range of B value

摘要翻译： 通过以下步骤制备光盘：在公式A =（a1-a3）m10中涂覆满足A值的A感光材料和基础树脂的正性光致抗蚀剂的步骤，B =（a2m20 + a3m10）在玻璃基板上在B值<0.3的范围内，以形成抗蚀剂膜，通过曝光于抗蚀剂膜形成凹坑图案，在曝光后使抗蚀剂膜显影形成 抵抗原稿，通过电铸处理对抗蚀剂原版进行电镀处理以形成压模，通过利用压模通过注射成型工艺形成复制盘，在复制盘上形成反射膜，并在复制盘上形成覆盖层 反射膜。