公开(公告)号：US20130280555A1

公开(公告)日：2013-10-24

申请号：US13865602

申请日：2013-04-18

Applicant: Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd. ,  UNIVERSITY OF YAMANASHI

Inventor： Yuichiro HARAMOTO ,  Mitsuo KODAMA

IPC: G11B5/725 ,  G11B5/84

CPC classification number: G11B5/725 ,  G11B5/8408

Abstract: A magnetic disk according to one embodiment of the present invention includes a base material and a lubricant layer provided on or over a base material. The lubricant layer contains a rod-like ionic liquid crystal compound having a cation group and an anion group.

Abstract translation: 根据本发明的一个实施例的磁盘包括基材和设置在基材上或上的润滑剂层。 润滑剂层含有具有阳离子基团和阴离子基团的棒状离子液晶化合物。

公开(公告)号：US20140314350A1

公开(公告)日：2014-10-23

申请号：US14319479

申请日：2014-06-30

Applicant: SAMSUNG ELECTRO-MECHANICS JAPAN ADVANCED TECHNOLOGY CO., LTD.

Inventor： Mitsuo KODAMA ,  Taketo NONAKA ,  Masafumi MIZUNO

IPC: F16C32/06

CPC classification number: F16C32/0659 ,  F16C17/107 ,  F16C33/107 ,  F16C33/745 ,  F16C2370/12

Abstract: A rotating device includes a shaft body having a shaft, a first flange extending in the radial direction from the side face of the shaft, and a second flange extending outwardly of the radial direction from another end side, a freely rotatable bearing body including a shaft encircling member present between the second flange and the first flange in the axial direction, a radial dynamic pressure generating groove provided in either one of the shaft and the shaft encircling member, a first thrust dynamic pressure generating groove provided in either one of the first flange and the shaft encircling member, and a lubrication medium. An end of the region where the radial dynamic pressure generating groove is formed and which is distant from the second flange is located outwardly of the region where the first thrust dynamic pressure generating groove is disposed in the axial direction.

Abstract translation: 旋转装置包括轴体，其具有轴，从轴的侧面沿径向延伸的第一凸缘和从另一端侧向径向外延伸的第二凸缘，包括轴的自由旋转的轴承体 在轴向上存在于第二凸缘和第一凸缘之间的环绕构件，设置在轴和轴环绕构件中的任一个中的径向动压产生槽，设置在第一凸缘中的任一个中的第一推力动压生成槽 和轴环绕构件，以及润滑介质。 形成径向动压产生槽并且远离第二凸缘的区域的一端位于第一推力动压生成槽沿轴向设置的区域的外侧。

公开(公告)号：US20140293482A1

公开(公告)日：2014-10-02

申请号：US14224865

申请日：2014-03-25

Applicant: Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.

Inventor： Mitsuo KODAMA ,  Taketo Nonaka ,  Hiroshi Kato

IPC: G11B19/20

CPC classification number: G11B19/2036

Abstract: A rotating device includes a rotor on which a magnetic recording disk is to be mounted and a stator configured to rotatably support the rotor. The stator includes a support projection extending along a rotating axis of the rotor, a shaft configured to surround the support projection and fixed to the support projection, a top cover covering the rotor, and a shaft fixing screw configured to fix the top cover to the shaft. The shaft fixing screw enters a shaft fixing screw hole formed in the support projection along the rotating axis.

Abstract translation: 旋转装置包括：转子，其上安装有磁记录盘;定子构造成可旋转地支撑转子。 定子包括沿着转子的旋转轴线延伸的支撑突起，构造成围绕支撑突起并固定到支撑突起的轴，覆盖转子的顶盖和被构造成将顶盖固定到 轴。 轴固定螺钉沿着旋转轴线进入形成在支撑突起中的轴固定螺钉孔。

公开(公告)号：US20140192438A1

公开(公告)日：2014-07-10

申请号：US14202902

申请日：2014-03-10

Applicant: SAMSUNG ELECTRO-MECHANICS JAPAN ADVANCED TECHNOLOGY CO., LTD.

Inventor： Mitsuo KODAMA ,  Masafumi MIZUNO ,  Taketo NONAKA

IPC: G11B19/20 ,  G11B5/012

CPC classification number: G11B19/2036 ,  F16C17/107 ,  F16C33/745 ,  F16C2370/12 ,  G11B5/012 ,  G11B19/2009 ,  H02K5/1677 ,  H02K7/08 ,  H02K7/086

Abstract: A rotating device includes a sleeve which encircles a shaft, a housing which supports the shaft and which forms an annular supporting recess where the lower end of the sleeve enters together with the shaft, a ring member which is provided above the sleeve and which is fixed to the shaft in a manner encircling the shaft. A first gap between the sleeve and the shaft includes first and second radial dynamic pressure generating portions. An annular sleeve recess is formed in upper face of the sleeve. The ring member includes a ring entering portion that enters the sleeve recess in a non-contact manner. An outward gap in the radial direction where the ring entering portion and the sleeve recess face with each other in the radial direction includes a second air-liquid interface of a lubricant.

公开(公告)号：US20140036391A1

公开(公告)日：2014-02-06

申请号：US13954889

申请日：2013-07-30

Applicant: SAMSUNG ELECTRO-MECHANICS JAPAN ADVANCED TECHNOLOGY CO., LTD.

Inventor： Mitsuo KODAMA ,  Masafumi MIZUNO ,  Taketo NONAKA

IPC: G11B19/20 ,  H02K7/08

CPC classification number: G11B19/2036 ,  F16C17/107 ,  F16C33/745 ,  F16C2370/12 ,  G11B5/012 ,  G11B19/2009 ,  H02K5/1677 ,  H02K7/08 ,  H02K7/086

Abstract: A rotating device includes a sleeve which encircles a shaft, a housing which supports the shaft and which forms an annular supporting recess where the lower end of the sleeve enters together with the shaft, a ring member which is provided above the sleeve and which is fixed to the shaft in a manner encircling the shaft. A first gap between the sleeve and the shaft includes first and second radial dynamic pressure generating portions. An annular sleeve recess is formed in upper face of the sleeve. The ring member includes a ring entering portion that enters the sleeve recess in a non-contact manner. An outward gap in the radial direction where the ring entering portion and the sleeve recess face with each other in the radial direction includes a second air-liquid interface of a lubricant.

Abstract translation: 旋转装置包括一个环绕轴的套筒，一个支撑该轴的壳体，它形成一个环形的支撑凹槽，其中套筒的下端与轴一起进入;一个环形构件，设置在套筒之上并固定 以围绕轴的方式连接到轴上。 套筒和轴之间的第一间隙包括第一和第二径向动压产生部分。 在套筒的上表面形成环形套筒凹部。 环形构件包括以非接触方式进入套筒凹部的环进入部分。 环形进入部分和套筒凹部在径向上彼此面对的径向方向上的向外的间隙包括润滑剂的第二空气 - 液体界面。