公开(公告)号：US5030017A

公开(公告)日：1991-07-09

申请号：US557574

申请日：1990-07-24

申请人： Yasuo Murakami ,  Nobuaki Mitamura

发明人： Yasuo Murakami ,  Nobuaki Mitamura

IPC分类号： C23C8/22 ,  C23C8/32 ,  F16C33/30 ,  F16C33/62

CPC分类号： F16C33/30 ,  C23C8/22 ,  C23C8/32 ,  F16C33/62 ,  Y10S384/912 ,  Y10S384/913

摘要： A rolling bearing has races and a rolling element. At least one of the races and the rolling element is made of a carburized or carbonitrided alloy steel. The content of a fine carbide present in the surface layer of the one element of the rolling bearing is 20-50 vol %. The content of retained austenite in the surface layer is 10-25 vol %. The rolling bearing provides a long-life rolling bearing suitable for use in a transmission and engine.

摘要翻译： 滚动轴承具有滚道和滚动体。 至少一个座圈和滚动元件由渗碳或碳氮共渗合金钢制成。 存在于滚动轴承的一个元件的表面层中的细小碳化物的含量为20〜50体积％。 表面层中残留奥氏体的含量为10-25vol％。 滚动轴承提供适用于变速箱和发动机的长寿命滚动轴承。

公开(公告)号：US20110250998A1

公开(公告)日：2011-10-13

申请号：US13058686

申请日：2009-12-28

申请人： Shigeki Hizuka ,  Kouji Ueda ,  Susumu Tanaka ,  Nobuaki Mitamura

发明人： Shigeki Hizuka ,  Kouji Ueda ,  Susumu Tanaka ,  Nobuaki Mitamura

IPC分类号： F16C33/58 ,  F16H55/56

CPC分类号： F16C33/62 ,  F16C19/06 ,  F16C33/32 ,  F16C2361/63 ,  F16C2361/65 ,  F16H9/18 ,  F16H57/035

摘要： A pulley support structure for a belt-drive continuously variable transmission and a belt-drive continuously variable transmission are provided that are able to control the occurrence of Mindlin slip itself, and in cases where Mindlin slip has occurred, are able to effectively reduce the effects thereof. In this pulley support structure for a belt-drive continuously variable transmission, 2500 MPs or less is the maximum contact pressure during use between the raceway surfaces of the inner wheel and outer wheel and the rolling elements in the various roller bearings for rotatably supporting the pulleys for the continuously variable transmission. The rolling element surface hardness is HRc 60 or greater, and is at least 1 HRc harder than that of the raceway surfaces. The surface of the rolling element is nitrided or carbonitrided, and the nitrogen concentration in the surface is 0.2% by mass or greater and 2.0% by mass or less. Radial direction gap in the various roller bearings during use is −30 μm or greater and 10 μm or less.

摘要翻译： 提供了一种用于带式无级变速器和皮带驱动无级变速器的滑轮支撑结构，其能够控制Mindlin滑动本身的发生，并且在Mindlin滑移发生的情况下能够有效地降低效果 其中。 在用于带驱动无级变速器的该皮带轮支撑结构中，在内轮和外轮的轨道表面之间的使用期间的最大接触压力和用于可旋转地支撑滑轮的各种滚子轴承中的滚动元件的最大接触压力为2500MPs 用于无级变速器。 滚动体表面硬度为HRc 60以上，比滚道表面硬度高1Kcc以上。 滚动体的表面被氮化或碳氮共混，表面的氮浓度为0.2质量％以上且2.0质量％以下。 使用中的各种滚柱轴承的径向方向间隙为-30μm以上且10μm以下。

公开(公告)号：US20080170827A1

公开(公告)日：2008-07-17

申请号：US11779334

申请日：2007-07-18

申请人： Nobuaki Mitamura

发明人： Nobuaki Mitamura

IPC分类号： G02B6/36

CPC分类号： G02B6/3846 ,  G02B6/3825 ,  G02B6/3874 ,  G02B6/4246 ,  G02B6/4292

摘要： The present invention relates to an optical receptacle which avoids the occurrence of a large impact at the insertion of the terminal member. The optical receptacle comprises a tubular slit sleeve in which a split is made in an axial direction and into which the plug body is introduced from its first end portion, a tubular solid sleeve into which the plug body introduced is inserted from its one end portion and which has an inner diameter which makes substantially no gap with respect to an outer diameter of the plug body, and an optical propagation member which is secured to the other end portion of the solid sleeve and which is optically coupled to the plug body, with a second end portion opposite to the first end portion of the slit sleeve and the one end portion of the solid sleeve being engaged to be connected to each other.

摘要翻译： 本发明涉及一种光学插座，其避免了在插入端子构件时产生大的冲击。 光学插座包括管状狭缝套筒，其中沿轴向方向形成分割，并且插塞体从其第一端部引入到其中，从其一个端部插入插入体的管状实心套管， 其具有相对于插塞体的外径基本上没有间隙的内径，以及固定在实心套筒的另一端部并且与光电耦合到插头主体的光学传播部件， 第二端部与狭缝套筒的第一端部相对，并且实心套筒的一个端部接合以彼此连接。

公开(公告)号：US07304798B2

公开(公告)日：2007-12-04

申请号：US10792747

申请日：2004-03-05

申请人： Hirotomo Izumi ,  Hiroshi Nagaeda ,  Nobuaki Mitamura

发明人： Hirotomo Izumi ,  Hiroshi Nagaeda ,  Nobuaki Mitamura

IPC分类号： G01B9/02 ,  G02B27/00

CPC分类号： G02B6/4246 ,  G01J3/0208 ,  G01J3/0286 ,  G01J3/18 ,  G01J3/26 ,  G01J3/2803 ,  G01J2003/1247 ,  G02B6/29311 ,  G02B6/29358 ,  G02B6/29373 ,  G02B6/29395 ,  G02B27/0087 ,  G02B27/1086 ,  G02B27/144 ,  G02F1/0147 ,  G02F1/03 ,  G02F2201/17 ,  G02F2203/055

摘要： A spectroscopic apparatus which is compact in size and performs high-precision light-splitting with a large angular dispersion. An optical input-processing section outputs a filtered transmitted light, using a bandpass filter that transmits only wavelength bands at one period of an input light, and collects the filtered transmitted light to generate a collected beam. An optic includes a first reflection surface and a second reflection surface which are high but asymmetric in reflectivity, and causes the collected beam incident thereon to undergo multiple reflections within an inner region between the first reflection surface and the second reflection surface, to thereby cause split beams to be emitted via the second reflection surface. A received light-processing section performs received light processing of the beams emitted from the optic. A control section variably controls at least one of a filter characteristic of the bandpass filter and an optical length through the optic.

摘要翻译： 一种尺寸紧凑并且具有大角度色散的高精度光分裂的分光装置。 光输入处理部分使用在输入光的一个周期仅发送波长带的带通滤波器来输出经滤波的透射光，并且收集被滤波的透射光以产生收集的光束。 光学元件包括反射率高但不对称的第一反射表面和第二反射表面，并且使入射到其上的收集的光束在第一反射表面和第二反射表面之间的内部区域内经历多次反射，从而导致分裂 经由第二反射面发射的光束。 接收到的光处理部分执行从光学元件发射的光束的接收光处理。 控制部分可变地控制带通滤波器的滤波器特性和通过光学器件的光学长度中的至少一个。

公开(公告)号：US07226507B2

公开(公告)日：2007-06-05

申请号：US10561865

申请日：2004-05-27

申请人： Nobuaki Mitamura ,  Tomohiko Ohta ,  Izumi Fusegawa ,  Masahiro Sakurada ,  Atsushi Ozaki

发明人： Nobuaki Mitamura ,  Tomohiko Ohta ,  Izumi Fusegawa ,  Masahiro Sakurada ,  Atsushi Ozaki

IPC分类号： C30B15/20

CPC分类号： C30B29/06 ,  C30B15/203

摘要： The present invention is a method for producing a single crystal of which a whole plane in a radial direction is a defect-free region with pulling the single crystal from a raw material melt in a chamber by Czochralski method, wherein a pulling condition is changed in a direction of the crystal growth axis during pulling the single crystal so that a margin of a pulling rate is always a predetermined value or more that the single crystal of which the whole plane in a radial direction is a defect-free region can be pulled. Thereby, there can be provided a method for producing a single crystal in which when a single crystal is produced by CZ method, the single crystal of which a whole plane in a radial direction is a defect-free region entirely in a direction of the crystal growth axis can be produced with stability.

摘要翻译： 本发明是一种单晶的制造方法，其中，通过Czochralski法从室内的原料熔融物中拉出单晶，其径向全平面为无缺陷区域，其中拉拔条件发生变化 拉伸单晶时的晶体生长轴的方向，使得拉伸速度的余量总是预先确定的值以上，使得整个平面在径向方向上的单晶是无缺陷区域。 因此，可以提供一种单晶的制造方法，其中当通过CZ法制造单晶时，其整个平面在径向方向上的无缺陷区域的单晶完全在晶体的方向上 生长轴可以稳定地生产。

公开(公告)号：US07200297B2

公开(公告)日：2007-04-03

申请号：US10278868

申请日：2002-10-24

申请人： Yasuhiro Yamauchi ,  Yuichi Kawahata ,  Nobuaki Mitamura ,  Hirohiko Sonoda

发明人： Yasuhiro Yamauchi ,  Yuichi Kawahata ,  Nobuaki Mitamura ,  Hirohiko Sonoda

IPC分类号： G02B6/26 ,  G02B27/00

CPC分类号： G02B6/29358 ,  G02B6/2937

摘要： A dispersion compensator comprising a VIPA is configured so as to reflect light with each wavelength at an angle varying depending on wavelength when the light is reflected off a mirror. When being coupled at the end of an input fiber, the light with each wavelength is coupled at a specific angle. If the light is coupled with the fiber at a specific angle, coupling efficiency degrades. Therefore, in this case, coupling loss increases. Light having a wavelength with high transmittance in the VIPA is coupled with the fiber at a large angle, while light with a low transmittance is efficiently coupled with the fiber at a small angle or no angle. In this way, the round-top wavelength characteristic of the VIPA can be leveled.

摘要翻译： 包括VIPA的色散补偿器被配置为当光从反射镜反射时以每个波长的光以与波长有关的角度变化。 当在输入光纤的端部耦合时，每个波长的光以特定角度耦合。 如果光以特定角度与光纤耦合，则耦合效率降低。 因此，在这种情况下，耦合损耗增加。 在VIPA中具有高透射率的光以大角度与光纤耦合，而具有低透射率的光以小角度或无角度与光纤有效耦合。 以这种方式，VIPA的圆顶波长特性可以被平整。

公开(公告)号：US20070017433A1

公开(公告)日：2007-01-25

申请号：US10560581

申请日：2004-05-28

申请人： Masahiro Sakurada ,  Makoto Iida ,  Nobuaki Mitamura ,  Atsushi Ozaki

发明人： Masahiro Sakurada ,  Makoto Iida ,  Nobuaki Mitamura ,  Atsushi Ozaki

IPC分类号： C30B15/00 ,  C30B21/06 ,  C30B28/10 ,  C30B30/04 ,  C30B27/02

CPC分类号： C30B29/06 ,  C30B15/203

摘要： The present invention is a method for producing a single crystal with pulling the single crystal from a raw material melt in a chamber by CZ method, wherein when growing the single crystal, where a pulling rate is defined as V and a temperature gradient of the crystal is defined as G during growing the single crystal, the temperature gradient G of the crystal is controlled by changing at least two or more of pulling conditions including a diameter of the straight body of the single crystal, a rotation rate of the single crystal during pulling the single crystal, a flow rate of an inert-gas introduced into the chamber, a position of a heater heating the raw material melt and a distance between the melt surface of the raw material melt and a heat insulating member provided in the chamber so as to oppose to the surface of the raw material melt, thereby V/G which is a ratio of the pulling rate V and the temperature gradient G of the crystal is controlled so that a single crystal including a desired defect region is grown. Thereby, there is provided a method for producing a single crystal in which when the single crystal is grown by CZ method, V/G can be controlled without lowering a pulling rate V, and thus the single crystal including a desired defect region can be produced effectively for a short time.

摘要翻译： 本发明是一种通过CZ法从室内的原料熔融物中拉出单晶的单晶的制造方法，其中，当生长单晶时，拉伸速度定义为V，晶体的温度梯度 在生长单晶时被定义为G，通过改变至少两个或更多个拉丝条件来控制晶体的温度梯度G，所述拉伸条件包括单晶直直体的直径，拉伸期间单晶的旋转速率 单晶，引入到室中的惰性气体的流量，加热原料熔体的加热器的位置以及原料熔体的熔融表面与设置在室中的绝热构件之间的距离，以便 与原料熔体的表面相对，从而控制作为晶体的拉伸速度V与温度梯度G的比的V / G，使得包含 生长期望的缺陷区域。 因此，提供了一种单晶的制造方法，其中当通过CZ法生长单晶时，可以在不降低拉伸速度V的情况下控制V / G，从而可以产生包含所需缺陷区的单晶 有效地在短时间内。

公开(公告)号：US20060215955A1

公开(公告)日：2006-09-28

申请号：US11319643

申请日：2005-12-29

申请人： Nobuaki Mitamura

发明人： Nobuaki Mitamura

IPC分类号： G02B6/26

CPC分类号： G02B6/3588 ,  G02B6/2931 ,  G02B6/29395 ,  G02B6/3512 ,  G02B6/3556 ,  G02B6/356

摘要： A wavelength selective optical switch according to the present invention detects wavelengths of signal lights input to a signal light input port in a main body portion which performs the switching of optical paths for each wavelength by an angular control of a plurality of mirrors, and also, monitors the intensity of a monitor light which is generated in an internal light source and is given from a monitor light input port disposed in the main body portion to be led to a monitor light output port, to feedback control a reflecting surface angle of the mirror corresponding to the wavelength of the signal light which is not input to the signal light input port, so that the output intensity of the monitor light becomes maximum. As a result, it is possible to reliably control the reflective surface angle of the mirror corresponding to the wavelength of the signal light which is not input, and therefore, the crosstalk doe not occur even when the signal light is newly input.

摘要翻译： 根据本发明的波长选择光开关，通过多个反射镜的角度控制来检测输入到主体部分中的信号光输入端口的波长，该信号光输入端口执行每个波长的光路的切换， 监视在内部光源中产生的监视光的强度，并且从设置在主体部分中的监视光输入端口给出以引导到监视器光输出端口，以反馈控制反射镜的反射表面角度 对应于未输入到信号光输入端口的信号光的波长，使得监视光的输出强度变得最大。 结果，可以可靠地控制与没有输入的信号光的波长相对应的反射镜的反射面角度，因此即使当新输入信号光时也不会发生串扰。

公开(公告)号：US06923576B2

公开(公告)日：2005-08-02

申请号：US10414308

申请日：2003-04-16

申请人： Susumu Tanaka ,  Shinji Fujita ,  Hideyuki Uyama ,  Nobuaki Mitamura

发明人： Susumu Tanaka ,  Shinji Fujita ,  Hideyuki Uyama ,  Nobuaki Mitamura

IPC分类号： C21D9/36 ,  C21D9/40 ,  C22C38/04 ,  C22C38/18 ,  C23C8/20 ,  C23C8/30 ,  F16C33/32 ,  F16C33/62

CPC分类号： F16C33/64 ,  C21D9/36 ,  C21D9/40 ,  C22C38/04 ,  C22C38/18 ,  C23C8/20 ,  C23C8/30 ,  F16C33/32 ,  F16C2204/64 ,  F16C2240/54 ,  F16C2240/76 ,  F16C2361/63 ,  F16C2361/65 ,  Y10S384/913

摘要： A rolling bearing has the radius of curvature of the raceway on an inner ring and an outer ring is from not smaller than 50.1% to not greater than 51.9% of the diameter of the balls, and at least one of the compositions of the bearing is obtained by forming an alloy steel having a carbon (C) content of from not smaller than 0.50% to not greater than 0.90%, a chromium (Cr) content of from not smaller than 3.0% to not greater than 15.0%, a manganese (Mn) content of from not smaller than 0.10% to not greater than 2.0%, a silicon (Si) content of from not smaller than 0.10% to not greater than 2.0%, a molybdenum (Mo) content of zero or not greater than 2.0% by weight, and a vanadium (V) content of zero or not greater than 2.0%, by weight.

摘要翻译： 滚动轴承在内圈上具有滚道的曲率半径，外圈的直径不小于球的直径的50.1％至不大于51.9％，并且轴承的组成中的至少一种为 通过形成碳（C）含量为0.50％以上且0.90％以下的合金钢，铬（Cr）含量为3.0％以上且15.0％以下的锰， Mn）含量为0.10％以上且2.0％以下，硅（Si）含量为0.10％以上且2.0％以下，钼（Mo）含量为0以上且2.0以下 重量％，钒（V）含量为零或不大于2.0％（重量）。

公开(公告)号：US06909537B2

公开(公告)日：2005-06-21

申请号：US10340842

申请日：2003-01-13

申请人： Yuichi Kawahata ,  Nobuaki Mitamura

发明人： Yuichi Kawahata ,  Nobuaki Mitamura

IPC分类号： G02B5/28 ,  G02B5/22 ,  G02B6/34 ,  H01S3/00

CPC分类号： G02B6/29358 ,  G02B6/29394

摘要： Light input from a single-mode fiber is collected into linear light beams by a line focuser, and collected on a VIPA element. A light beam output from the VIPA element is made to pass through a space filter having a predetermined transmission loss characteristic, and focused on a mirror with a focusing lens. The light is reflected by the mirror, again passes through the space filter via the focusing lens, enters the VIPA element, and again enters the single-mode fiber via the line focuser. The insertion loss wavelength characteristic of the wavelength dispersion compensator using the VIPA element is optimized by being superimposed on the transmission loss characteristic of the space filter.

摘要翻译： 来自单模光纤的光输入由线聚焦器收集到线性光束中，并收集在VIPA元件上。 使从VIPA元件输出的光束通过具有预定的传输损耗特性的空间滤波器，并且聚焦在具有聚焦透镜的反射镜上。 光被镜子反射，再次通过聚焦透镜通过空间滤光片，进入VIPA元件，并再次通过线型聚焦器进入单模光纤。 使用VIPA元件的波长色散补偿器的插入损耗波长特性通过叠加在空间滤波器的传输损耗特性上被优化。