公开(公告)号：US06185239B2

公开(公告)日：2001-02-06

申请号：US09010197

申请日：1998-01-21

申请人： Seiji Ijuin ,  Shoji Hirata ,  Atsushi Ogasawara

发明人： Seiji Ijuin ,  Shoji Hirata ,  Atsushi Ogasawara

IPC分类号： H01S319

CPC分类号： H01S5/0264 ,  H01S5/0287 ,  H01S5/10

摘要： A semiconductor laser device with reduced threshold current and power consumption. Reflectivity Rr at a rear face of an optical cavity of the laser is set as large as possible. A monitor photodiode used for controlling an output form the laser is provided on a mount at a position to detect the main laser beam emitted from the front face of the optical cavity.

摘要翻译： 具有降低阈值电流和功耗的半导体激光器件。 将激光器的光腔的后表面的反射率Rr尽可能大地设定。 用于控制激光输出的监视器光电二极管被设置在检测从光腔前表面发射的主激光束的位置的安装座上。

公开(公告)号：US5890815A

公开(公告)日：1999-04-06

申请号：US967817

申请日：1997-11-12

申请人： Seiji Ijuin ,  Yoshio Shoda ,  Tetsu Takehara ,  Katsuhiro Konno

发明人： Seiji Ijuin ,  Yoshio Shoda ,  Tetsu Takehara ,  Katsuhiro Konno

IPC分类号： F16C19/24 ,  F16C19/26 ,  F16C19/36 ,  F16C33/34 ,  F16C33/58 ,  F16C33/36

CPC分类号： F16C19/364 ,  F16C19/26 ,  F16C33/34

摘要： A roller bearing comprising an outer ring having an outer ring raceway, an inner ring having an inner ring raceway, the inner peripheral surface at the end portion of the outer ring and/or the outer peripheral surface at the end portion of the inner ring formed with a flange portion, and a plurality of rollers having a rolling surface in contact with the outer and inner ring raceways, a sliding contact face in sliding contact with the inner face of the flange portion, and a chamfered portion provided between the sliding contact face and the rolling face, the sliding contact face smoothly connected to the chamfered portion in a curved surface the radius of curvature of which is at least 0.08 mm, and provided that the center line average height roughness of the sliding contact surface is .delta..sub.1 while the center line average height roughness of the inner face in contact with the sliding surface is .delta..sub.2, the composite roughness represented by the formula (.delta..sub.1.sup.2 +.delta..sub.2.sup.2).sup.1/2 is up to 0.09 .mu.mRa.

摘要翻译： 一种滚子轴承，包括具有外圈滚道的外圈，具有内圈滚道的内圈，外圈端部的内周面和/或内圈的端部的外周面形成 具有凸缘部分的多个辊和具有与外圈和内圈滚道接触的滚动表面的多个滚子，与凸缘部分的内表面滑动接触的滑动接触面，以及设置在滑动接触面 和滚动面，滑动接触面在弯曲表面中平滑地连接到倒角部分，其曲率半径至少为0.08mm，并且假设滑动接触表面的中心线平均高度粗糙度为δ1，而 与滑动表面接触的内表面的中心线平均高度粗糙度为Δ2，由公式（δ12 + delta 22）+ E， + EE最高可达0.09亩。

公开(公告)号：US5399027A

公开(公告)日：1995-03-21

申请号：US266267

申请日：1994-06-27

申请人： Seiji Ijuin ,  Yoshio Shoda

发明人： Seiji Ijuin ,  Yoshio Shoda

IPC分类号： F16C33/58 ,  F16C19/52 ,  F16C33/66

CPC分类号： F16C33/6677 ,  F16C33/6681 ,  F16C19/525

摘要： A rolling bearing for supporting a rotating shaft of a high speed rotating machine is provided with an outer race including an outer raceway on an inner face thereof, an inner race including an inner raceway on an outer face thereof, the inner race being rotated together with the rotating shaft, a plurality of rolling elements rotatably disposed between the outer raceway and the inner raceway, and a hole formed at a portion of the inner race, in which a section of the hole in a circumferential direction of the inner race has a shape of which a size in the circumferential direction of the inner race is greater than that in an axial direction of the inner race, and which are free from a sharp edge. The rolling bearing can relax stress concentration produced in the inner race during a high speed rotation and can increase the allowable rotation speed of the inner race.

摘要翻译： 一种用于支撑高速旋转机械的旋转轴的滚动轴承设置有在其内表面上包括外滚道的外圈，包括在其外表面上的内滚道的内座圈，内座圈与 所述旋转轴，可旋转地设置在所述外滚道和所述内滚道之间的多个滚动元件，以及形成在所述内圈的一部分处的孔，所述内圈的圆周方向上的所述孔的一部分具有形状 其内圈的圆周方向的尺寸大于内圈的轴向尺寸，并且没有锋利的边缘。 滚动轴承可以在高速旋转期间放松在内圈产生的应力集中，并且可以增加内圈的允许转速。

公开(公告)号：US06530693B1

公开(公告)日：2003-03-11

申请号：US09678833

申请日：2000-10-04

申请人： Seiji Ijuin ,  Takashi Yamamoto

发明人： Seiji Ijuin ,  Takashi Yamamoto

IPC分类号： F16C3358

CPC分类号： F16C19/225 ,  F16C19/26 ,  F16C19/36 ,  F16C33/34 ,  F16C33/585 ,  F16C2240/40

摘要： A cylindrical roller bearing wherein the end surface of the rollers comes in contact with the guiding surface of the rib of the inner race with a contact ellipse therebetween, and at least one of the end surface and the guiding surface has a curved, convex surface, and provided that a second principal curvature plane passes through the center axis of the inner race and the center of the contact ellipse, that a first principal curvature plane perpendicularly crosses both the second principal curvature plane and the contact ellipse and extends through the center of the contact ellipse, that the cross sections of the end surface appearing in the first and second principal curvature planes have the principal radii (Rr2 and Rr1) of curvature, respectively, and that the cross sections of the guiding surface appearing in the first and second principal curvature planes have the proximal radii (Rf2 and Rf1) of curvature, respectively, the relationship between these principal radii of curvature is such that (1/Rf1)−(1/Rf2)+(1/Rr1)=(1/Rr2)

摘要翻译： 一种圆柱滚子轴承，其中辊的端面与内圈的肋的引导表面接触，其间具有接触椭圆形，并且端表面和引导表面中的至少一个具有弯曲的凸形表面， 并且第二主曲率平面通过内圈的中心轴线和接触椭圆的中心，第一主曲率面垂直于第二主曲率面和接触椭圆两者并且延伸穿过第二主曲率面的中心 接触椭圆，出现在第一和第二主曲率面中的端面的横截面分别具有曲率的主半径（Rr2和Rr1），并且导向表面的横截面出现在第一和第二主体中 曲率平面分别具有曲率的近端半径（Rf2和Rf1），这些主曲率半径之间的关系 （1 / Rf1） - （1 / Rf2）+（1 / Rr1）=（1 / Rr2）<0。