公开(公告)号：US20130340671A1

公开(公告)日：2013-12-26

申请号：US14003348

申请日：2012-02-15

申请人： Akihiro Kimura ,  Ryoji Hoshi ,  Nobuaki Mitamura ,  Hiroyuki Kamada

发明人： Akihiro Kimura ,  Ryoji Hoshi ,  Nobuaki Mitamura ,  Hiroyuki Kamada

IPC分类号： C30B15/10 ,  C03B20/00

CPC分类号： C03B20/00 ,  C03B19/095 ,  C03B32/00 ,  C30B15/10 ,  C30B29/06 ,  C30B35/002 ,  Y02P40/57 ,  Y10T117/1032

摘要： A method for manufacturing a silica glass crucible, includes: preparing a crucible base material that is made of silica glass and has a crucible shape; fabricating a synthetic silica glass material based on a direct method or a soot method; processing the synthetic silica glass material into the crucible shape without being pulverized; and bonding an inner wall of the crucible base material and an outer wall of the synthetic silica glass material processed into the crucible shape through a silica powder by performing a heat treatment. As a result, it is possible to provide the silica glass crucible that can avoid occurrence of dislocations of silicon single crystal at the time of manufacturing the silicon single crystal, has high heat-resisting properties, and can suppress a reduction in productivity and yield ratio, the manufacturing method thereof, and the method for manufacturing silicon single crystal using such a silica glass crucible.

摘要翻译： 一种石英玻璃坩埚的制造方法，包括：准备由石英玻璃制成并具有坩埚形状的坩埚基材; 基于直接法或烟灰法制造合成石英玻璃材料; 将合成二氧化硅玻璃材料加工成坩埚形状而不被粉碎; 并且通过进行热处理，通过二氧化硅粉末将坩埚基材的内壁和加工成坩埚形状的合成石英玻璃材料的外壁粘合。 结果，可以提供在制造硅单晶时避免硅单晶发生位错的二氧化硅玻璃坩埚，具有高的耐热性能，并且可以抑制生产率和屈服比的降低 及其制造方法，以及使用这种石英玻璃坩埚制造单晶硅的方法。

公开(公告)号：US20110299559A1

公开(公告)日：2011-12-08

申请号：US13036474

申请日：2011-02-28

申请人： Nobuaki Mitamura

发明人： Nobuaki Mitamura

IPC分类号： H01S3/04

CPC分类号： H01S5/02236 ,  H01S5/005 ,  H01S5/0078 ,  H01S5/02212 ,  H01S5/02288 ,  H01S5/02292 ,  H01S5/02453 ,  H01S5/06804 ,  H01S5/0683 ,  H01S5/0687

摘要： When environmental temperature becomes low, the quantity of light of the backward output light irradiated onto a light absorber formed on a mount over which a chip is mounted, is increased by a light quantity adjuster, to increase the optical absorption by the light absorber, thereby raising its temperature. As a result, the temperature of the chip on the mount rises, thereby enabling to substantially narrow a temperature range on a low temperature side. Accordingly, an optical device with low power consumption that can satisfy characteristics required for signal transmission at a required rate over a wide temperature range can be provided.

摘要翻译： 当环境温度变低时，通过光量调节器增加了照射到形成在安装有芯片的安装件上的光吸收体上的反向输出光的光量，以增加光吸收体的光吸收，由此 升高温度。 结果，安装座上的芯片的温度上升，从而能够使低温侧的温度范围基本上变窄。 因此，可以提供能够满足在宽温度范围内以所需速度进行信号传输所需的特性的低功耗的光学装置。

公开(公告)号：US07384477B2

公开(公告)日：2008-06-10

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： C30B15/20

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. 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，晶体的温度梯度G通过改变至少两个或更多个拉伸条件来控制。 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，从而可以产生包括所需缺陷区的单晶 有效地在短时间内。

公开(公告)号：US20080124029A1

公开(公告)日：2008-05-29

申请号：US11779330

申请日：2007-07-18

申请人： Nobuaki Mitamura

发明人： Nobuaki Mitamura

IPC分类号： G02B6/38

CPC分类号： G02B6/4246 ,  G02B6/3874 ,  G02B6/3893

摘要： The present invention relates to an optical receptacle which prevents the occurrence of a large impact by collision of a plug body with an optical propagation member. The optical receptacle includes a solid sleeve having a cavity hole into which the plug body is inserted from its one end side and which has an even inner diameter so as not to substantially define a gap with respect to an outer diameter of the plug body and an optical propagation member fixedly secured to the other end side of the cavity hole, with the solid sleeve being formed such that a length from an end portion of the cavity hole on the plug body insertion side to the optical propagation member is longer than a maximum length of extension due to the elastic body of the terminal member.

摘要翻译： 光插座技术领域本发明涉及防止插头体与光传播部件的碰撞产生大的冲击的光插座。 光学插座包括具有空腔孔的实心套管，插塞体从其一端侧插入其中，并且具有均匀的内径，以便不相对于插塞本体的外径基本上限定间隙， 固定在空腔孔的另一端侧的光传播部件，其中实心套筒形成为使得从塞体主体插入侧的孔洞的端部到光传播部件的长度比最大长度长 由于端子构件的弹性体的延伸。

公开(公告)号：US07340126B2

公开(公告)日：2008-03-04

申请号：US11319643

申请日：2005-12-29

申请人： Nobuaki Mitamura

发明人： Nobuaki Mitamura

IPC分类号： G02B6/24 ,  G02B26/08

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：US20070101926A1

公开(公告)日：2007-05-10

申请号：US11620024

申请日：2007-01-04

申请人： Izumi FUSEGAWA ,  Sadayuki Okuni ,  Nobuaki Mitamura ,  Tomohiko Ohta ,  Nobuo Katuoka

发明人： Izumi FUSEGAWA ,  Sadayuki Okuni ,  Nobuaki Mitamura ,  Tomohiko Ohta ,  Nobuo Katuoka

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

CPC分类号： C30B15/22 ,  C30B15/36 ,  C30B29/06 ,  Y10T117/1032

摘要： The present invention is a method of manufacturing a silicon single crystal by Czochralski method without performing Dash Necking method, comprising the steps of: providing a seed crystal having a tip end with a sharp-pointed shape or a truncation thereof in which an angle of the tip end is 28° or less; keeping the tip end of the seed crystal at just above a silicon melt to heat it before bringing the tip end of the seed crystal into contact with the silicon melt; bringing the tip end of the seed crystal into contact with the silicon melt and immersing the seed crystal into the silicon melt to a desired diameter; and shifting to pull the single crystal, wherein a temperature variation at a surface of the silicon melt is kept at ±5° C. or less at least for a period from a point of bringing the tip end of the seed crystal into contact with the silicon melt to a point of shifting to pull the single crystal. Thereby, in a method of growing a silicon single crystal by Czochralski method without using Dash Necking method, a success ratio of growing a single crystal free from dislocation can be increased, at the same time a heavy silicon single crystal having a large diameter in which a diameter of a constant diameter portion is over 200 mm can be grown even in the case of growing a silicon single crystal having a crystal orientation of .

摘要翻译： 本发明是一种通过Czochralski法制造单晶硅的方法，而不进行Dash Necking方法，包括以下步骤：提供具有尖锐形状或截头尖端的晶种，其中， 尖端为28°以下; 将晶种的尖端保持在硅熔体正上方，以使晶种的尖端与硅熔体接触; 使晶种的尖端与硅熔体接触并将晶种浸入硅熔体中至所需的直径; 并且移动以拉动单晶，其中，至少在使晶种的尖端与所述晶体接触的时间点至少保持在所述硅熔体的表面处的温度变化为±5℃以下 硅熔化到移动点以拉动单晶。 因此，在不使用Dash Necking法的情况下，通过Czochralski法生长硅单晶的方法中，可以提高生长不含位错的单晶的成功率，同时可以增加直径大的重硅单晶，其中， 即使在生长晶体取向为<110>的硅单晶的情况下，也可以生长恒定直径部分的直径超过200mm。

公开(公告)号：US07137741B2

公开(公告)日：2006-11-21

申请号：US10310900

申请日：2002-12-06

申请人： Shinji Fujita ,  Youichi Matsumoto ,  Yasuo Murakami ,  Nobuaki Mitamura ,  Shigeru Okita

发明人： Shinji Fujita ,  Youichi Matsumoto ,  Yasuo Murakami ,  Nobuaki Mitamura ,  Shigeru Okita

IPC分类号： F16C33/58 ,  F16C33/32 ,  F16C33/00

CPC分类号： F16C33/30 ,  F16C33/62

摘要： A rolling bearing intended for longer life by improving seizure resistance and wear resistance in the circumstance with slip contact or in the circumstance where lubricant tends to be exhausted, which is manufactured by applying carburization or carbonitridation to an Si-added material to disperse and precipitate carbides or carbonitrides containing Si or Si—X (X=one or more of Mn, Mo, and Cr) thereby improving the seizure resistance and the wear resistance by the self-lubrication effect thereof, the size of the carbides or carbonitrides being preferably 10 μm or less for preventing flaking, and the area ratio for the carbides or carbonitrides being preferably 1.0–30% for obtaining sufficient self-lubrication effect.

公开(公告)号：US20060072872A1

公开(公告)日：2006-04-06

申请号：US11042143

申请日：2005-01-26

申请人： Nobuaki Mitamura

发明人： Nobuaki Mitamura

IPC分类号： G02B6/26

CPC分类号： G02B6/3594 ,  G02B6/2931 ,  G02B6/3512 ,  G02B6/353 ,  G02B6/3544 ,  G02B6/356 ,  H04Q11/0005 ,  H04Q2011/0026 ,  H04Q2011/003 ,  H04Q2011/0039 ,  H04Q2011/0049

摘要： In a wavelength selecting optical switch, a shutter is situated near an incident position, which is a position at which the light falls onto the mirrors, and has a plurality of blocking members that prevent or allow light to be incident onto respective mirrors. Moreover, a control unit controls a blocking member corresponding to a mirror of which an angle is to be changed so that the blocking member prevents the light to be incident onto the corresponding mirror.

摘要翻译： 在波长选择光学开关中，快门位于入射位置附近，该入射位置是光落在反射镜上的位置，并且具有防止或允许光入射到各个反射镜上的多个阻挡构件。 此外，控制单元控制对应于要改变角度的反射镜的阻挡构件，使得阻挡构件防止光入射到相应的反射镜上。

公开(公告)号：US06931165B2

公开(公告)日：2005-08-16

申请号：US10974780

申请日：2004-10-28

申请人： Hiroshi Nagaeda ,  Nobuaki Mitamura ,  Kazuaki Akimoto

发明人： Hiroshi Nagaeda ,  Nobuaki Mitamura ,  Kazuaki Akimoto

IPC分类号： G02B6/32 ,  G02B5/30 ,  G02B6/26 ,  G02B6/34 ,  G02B27/28 ,  G02F1/01 ,  G02F1/03 ,  G02F1/061 ,  G02F1/13 ,  G02F1/31 ,  G02B6/00

CPC分类号： G02B6/29302 ,  G02B6/266 ,  G02B6/272 ,  G02B6/2766 ,  G02B27/286 ,  G02F1/0136 ,  G02F2201/17 ,  G02F2203/48

摘要： An optical device includes a small and low-cost variable polarization plane rotator that can control a rotation angle of the polarization plane easily. A variable polarization plane rotator is provided with a λ/4 phase plate having an optical axis in the same direction as, or at a 90 degree angle relative to, a polarization direction of an input light beam. A phase difference variable element has an optical axis at a ±45 degree angle relative to the optical axis of the λ/4 phase plate, to apply a variable phase difference between the polarization components parallel to and perpendicular to the optical axis thereof. A phase difference adjustment section adjusts the variable phase difference of the phase difference variable element, wherein the input light beam after being transmitted through the phase difference variable element to form elliptically polarized light or circularly polarized light, is transmitted through the λ/4 phase plate to form linearly polarized light. The polarization plane of the input light beam is rotated by an angle corresponding to the phase difference applied by the phase difference variable element.

摘要翻译： 光学装置包括可以容易地控制偏振面的旋转角度的小而低成本的可变偏振面旋转器。 可变偏振面旋转体设置有λ/ 4相位板，其具有与输入光束的偏振方向相同的方向或相对于输入光束的偏振方向成90度角的光轴。 相位差可变元件相对于λ/ 4相位板的光轴具有±45度角的光轴，以在平行于其并垂直于其光轴的偏振分量之间施加可变相位差。 相位差调整部分调节相位差可变元件的可变相位差，其中通过相位差可变元件传输以形成椭圆偏振光或圆偏振光的输入光束透射通过λ/ 4相位板 以形成线偏振光。 输入光束的偏振平面旋转与由相位差可变元件施加的相位差对应的角度。

公开(公告)号：US20050046837A1

公开(公告)日：2005-03-03

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： G01J3/12 ,  G01J3/18 ,  G01J3/26 ,  G01J3/28 ,  G02B6/34 ,  G02B26/00 ,  G02B27/00 ,  G02B27/14 ,  G02F1/01 ,  G02F1/03

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。