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1. 发明申请

US20090324158A1 Optical modulation device and manufacturing method thereof 有权
标题翻译：光调制装置及其制造方法
公开(公告)号：US20090324158A1
公开(公告)日：2009-12-31
申请号：US12385001
申请日：2009-03-27
申请人： Takashi Shiraishi , Tetsuya Miyatake , Tetsu Hasegawa
发明人： Takashi Shiraishi , Tetsuya Miyatake , Tetsu Hasegawa
IPC分类号： G02F1/035
CPC分类号： G02B6/13 , G02B6/136 , G02B2006/1204 , G02F1/0305 , G02F1/0356 , G02F1/2255
摘要： An optical modulation device includes: a crystal substrate having an electro-optic effect; an optical waveguide formed in the crystal substrate; an electrode formed on the crystal substrate, to apply an electric field to the optical waveguide; and a buried layer of low dielectric constant buried to avoid the optical waveguide, in at least one portion of a lower region of the electrode inside the crystal substrate, which is spaced from both of a front surface of the crystal substrate on which the electrode is formed and a rear surface thereof opposed to the front surface.
摘要翻译：光调制装置包括：具有电光效应的晶体基板; 形成在晶体基板中的光波导; 形成在所述晶体基板上的电极，用于向所述光波导施加电场; 以及在晶体基板内部的电极的下部区域的至少一部分中埋设有低介电常数的掩埋层，以避免光波导与电极的晶体基板的前表面间隔开形成的后表面与前表面相对。

2. 发明授权

US08135241B2 Optical modulation device utilizing electro-optic effect 有权
标题翻译：利用电光效应的光调制装置
公开(公告)号：US08135241B2
公开(公告)日：2012-03-13
申请号：US12385001
申请日：2009-03-27
申请人： Takashi Shiraishi , Tetsuya Miyatake , Tetsu Hasegawa
发明人： Takashi Shiraishi , Tetsuya Miyatake , Tetsu Hasegawa
IPC分类号： G02F1/035 , G02B6/10
CPC分类号： G02B6/13 , G02B6/136 , G02B2006/1204 , G02F1/0305 , G02F1/0356 , G02F1/2255
摘要： An optical modulation device includes: a crystal substrate having an electro-optic effect; an optical waveguide formed in the crystal substrate; an electrode formed on the crystal substrate, to apply an electric field to the optical waveguide; and a buried layer of low dielectric constant buried to avoid the optical waveguide, in at least one portion of a lower region of the electrode inside the crystal substrate, which is spaced from both of a front surface of the crystal substrate on which the electrode is formed and a rear surface thereof opposed to the front surface.
摘要翻译：光调制装置包括：具有电光效应的晶体基板; 形成在晶体基板中的光波导; 形成在所述晶体基板上的电极，用于向所述光波导施加电场; 以及在晶体基板内部的电极的下部区域的至少一部分中埋设有低介电常数的掩埋层，以避免光波导与晶体基板的其上的电极的前表面间隔开形成的后表面与前表面相对。

3. 发明授权

US08582928B2 Optical waveguide device, manufacturing method therefor, optical modulator, polarization mode dispersion compensator, and optical switch 有权
标题翻译：光波导器件及其制造方法，光调制器，偏振模色散补偿器和光开关
公开(公告)号：US08582928B2
公开(公告)日：2013-11-12
申请号：US12698880
申请日：2010-02-02
申请人： Tetsuya Miyatake , Takashi Shiraishi , Masaharu Doi
发明人： Tetsuya Miyatake , Takashi Shiraishi , Masaharu Doi
IPC分类号： G02F1/035
CPC分类号： G02B6/13 , G02F1/0316 , G02F1/035 , G02F1/225
摘要： An optical waveguide device includes: a substrate which has an electro-optical effect; an optical waveguide which is formed on the substrate and/or inside the substrate; and an in-substrate electrode which is formed of a metal and provided inside the substrate.
摘要翻译：光波导装置包括：具有电光效应的基板; 形成在基板上和/或内部的基板上的光波导; 以及由金属形成并设置在基板内部的基板内电极。

4. 发明授权

US07627200B2 Optical device 有权
标题翻译：光学装置
公开(公告)号：US07627200B2
公开(公告)日：2009-12-01
申请号：US11554924
申请日：2006-10-31
申请人： Takashi Shiraishi , Tetsu Hasegawa , Masaharu Doi , Kazuhiro Tanaka
发明人： Takashi Shiraishi , Tetsu Hasegawa , Masaharu Doi , Kazuhiro Tanaka
IPC分类号： G02F1/035
CPC分类号： G02F1/0356
摘要： Optical waveguides (A) and (B) of a Mach-Zehnder modulator is normally formed on a −Z plane as an electric polarization non-inversion area. However, when the signal electrode 11 and the ground electrode 10 are provided asymmetrically on two waveguides, chirp occurs in output light, which is undesired. Therefore, these electrodes are provided symmetrically about the two waveguides. To effectively perform optical modulation, a part of the substrate in which an optical waveguide exists is to be electric polarization-inverted. As a result of the electric polarization inversion the optical waveguide is on the +Z plane. However, electric charge is accumulated on the +Z plane from unstable spontaneous electric polarization of an electric polarization inversion area, and has undesired influence on the performance of the optical modulator. Therefore, a conductive amorphous layer is formed on the surface of the electric polarization inversion area.
摘要翻译：马赫 - 曾德调制器的光波导（A）和（B）通常在-Z平面上形成为电极化反转区域。然而，当信号电极11和接地电极10不对称地设置在两个波导上时，在输出光中发生啁啾，这是不期望的。因此，这些电极围绕两个波导对称设置。为了有效地进行光调制，存在光波导的基板的一部分被电极化反转。作为电极化反转的结果，光波导在+ Z平面上。然而，电荷从电极化反转区域的不稳定的自发电极化在+ Z平面上积累，并且对光调制器的性能具有不期望的影响。因此，在电极化反转区域的表面上形成导电非晶层。

5. 发明授权

US07729568B2 Optical device having stress layer inducing refraction index variation in a partial region of a substrate by photoelastic effect 有权
$Optical device having stress layer inducing refraction index variation in a partial region of a substrate by photoelastic effect$
标题翻译：具有应力层的光学器件通过光弹性效应在衬底的部分区域中引起折射率变化
公开(公告)号：US07729568B2
公开(公告)日：2010-06-01
申请号：US12187606
申请日：2008-08-07
申请人： Takashi Shiraishi , Kazuhiro Tanaka , Tetsuya Miyatake
发明人： Takashi Shiraishi , Kazuhiro Tanaka , Tetsuya Miyatake
IPC分类号： G02B6/00 , G02B6/10
CPC分类号： G02F1/0134 , G02B6/122 , G02B6/132 , G02B2006/1204 , G02B2006/12078 , G02F1/05
摘要： The application relates to an optical device for enhancing the stress to be generated in a substrate in comparison with a conventional technique. To this end, the optical device includes a substrate having a photoelastic effect, a first stress layer formed on a first face of the substrate and having a pattern for generating stress which induces refraction index variation by the photoelastic effect in a partial region in the substrate, and a second stress layer formed on a second face which is a reverse face to the first face of the substrate and configured to generate stress for restoring the shape from the deformation caused by the stress generated in the substrate by the first stress layer in the substrate.
摘要翻译：本申请涉及一种用于增强与常规技术相比在衬底中产生的应力的光学装置。为此，光学器件包括具有光弹性效应的衬底，形成在衬底的第一面上的第一应力层，并且具有用于产生应力的图案，该图案通过衬底中的部分区域中的光弹性效应引起折射率变化以及第二应力层，所述第二应力层形成在与所述基板的所述第一面相反的第二面上，并且被配置为产生由所述基板中由所述第一应力层在所述基板中产生的应力引起的形状恢复形状的应力基质。

6. 发明申请

US20100195953A1 OPTICAL WAVEGUIDE DEVICE, MANUFACTURING METHOD THEREFOR, OPTICAL MODULATOR, POLARIZATION MODE DISPERSION COMPENSATOR, AND OPTICAL SWITCH 有权
标题翻译：光波器件，其制造方法，光学调制器，偏振模式分散补偿器和光开关
公开(公告)号：US20100195953A1
公开(公告)日：2010-08-05
申请号：US12698880
申请日：2010-02-02
申请人： Tetsuya MIYATAKE , Takashi Shiraishi , Masaharu Doi
发明人： Tetsuya MIYATAKE , Takashi Shiraishi , Masaharu Doi
IPC分类号： G02B6/12 , C23F1/00
CPC分类号： G02B6/13 , G02F1/0316 , G02F1/035 , G02F1/225
摘要： An optical waveguide device includes: a substrate which has an electro-optical effect; an optical waveguide which is formed on the substrate and/or inside the substrate; and an in-substrate electrode which is formed of a metal and provided inside the substrate.
摘要翻译：光波导装置包括：具有电光效应的基板; 形成在基板上和/或内部的基板上的光波导; 以及由金属形成并设置在基板内部的基板内电极。

7. 发明授权

US08774583B2 Optical device and optical transmitter 有权
标题翻译：光学设备和光发射机
公开(公告)号：US08774583B2
公开(公告)日：2014-07-08
申请号：US12685374
申请日：2010-01-11
申请人： Takashi Shiraishi , Tetsu Hasegawa , Masaharu Doi
发明人： Takashi Shiraishi , Tetsu Hasegawa , Masaharu Doi
IPC分类号： G02B6/10
CPC分类号： G02B6/125 , G02B2006/12097 , G02B2006/12119
摘要： An optical device and an optical transmitter are provided. The optical device includes a substrate, a first optical waveguide that may be formed in the substrate and may have a bending portion, and a second optical waveguide that intersects with the bending portion of the first optical waveguide, wherein a groove may be formed outside the bending portion of the first optical waveguide in the substrate.
摘要翻译：提供光学装置和光发射机。光学装置包括基板，可以形成在基板中并且可以具有弯曲部分的第一光波导和与第一光波导的弯曲部相交的第二光波导，其中，可以在第一光波导的弯曲部分。

8. 发明授权

US09366265B2 Scroll shape of centrifugal compressor 有权
标题翻译：涡旋式离心压缩机
公开(公告)号：US09366265B2
公开(公告)日：2016-06-14
申请号：US13978897
申请日：2012-01-27
申请人： Isao Tomita , Takashi Shiraishi , Kenichiro Iwakiri
发明人： Isao Tomita , Takashi Shiraishi , Kenichiro Iwakiri
IPC分类号： F04D29/42 , F04D29/40 , F04D29/44 , F04D29/68
CPC分类号： F04D29/4206 , F04D29/403 , F04D29/4226 , F04D29/441 , F04D29/681 , F05D2250/52
摘要： In a scroll shape of a centrifugal compressor, an enlargement rate of a ratio A/R of a cross-sectional area A of a scroll portion 12 to a radius R from an axis L1 of a compressor impeller 3 to a centroid P0 of a cross section of the scroll portion is reduced from a winding start to a winding end of the scroll portion.
摘要翻译：在离心式压缩机的涡旋形状中，涡旋部12的截面积A与压缩机叶轮3的轴线L1的相对于半径R的比A / R的增大率相对于十字形的重心P0 涡旋部的截面从涡旋部的卷绕开始减少到卷绕端。

9. 发明授权

US08876401B2 Optical device and method of manufacturing optical device including transparent member between optical waveguide core and optical waveguide insertion hole 有权
标题翻译：光学元件及其制造方法，其包括光波导芯和光波导插入孔之间的透明构件
公开(公告)号：US08876401B2
公开(公告)日：2014-11-04
申请号：US13448693
申请日：2012-04-17
申请人： Takashi Shiraishi
发明人： Takashi Shiraishi
IPC分类号： G02B6/00 , G02B6/38 , G02B6/32
CPC分类号： G02B6/3861 , G02B6/325 , G02B6/3885 , Y10T29/49826 , Y10T156/1052
摘要： An optical device includes a connector configured to provide a hole, an optical waveguide provided with a core and a clad equipped on an outer periphery of the core and configured to have a refractive index smaller than a refractive index of the core, a first transparent member configured to make contact with a core end face of the optical waveguide, and a second transparent member configured to make contact with a hole bottom of the optical waveguide insertion hole, wherein a contact area of the second transparent member and the hole bottom of the optical waveguide insertion hole is larger than a contact area of the core and the first transparent member.
摘要翻译：一种光学装置，包括：构造成提供孔的连接器，设置有芯的光波导和设置在所述芯的外周上并且被配置为具有小于所述芯的折射率的折射率的折射率的第一透明构件被配置为与所述光波导的芯端面接触;以及第二透明构件，其被配置为与所述光波导插入孔的孔底接触，其中所述第二透明构件与所述光学波导孔的孔底的接触面积波导插入孔大于芯体和第一透明部件的接触面积。

10. 发明申请

US20140010647A1 TURBOCHARGER AND METHOD OF MANUFACTURING FLOATING BUSH 有权
标题翻译：涡轮增压器及其制造方法
公开(公告)号：US20140010647A1
公开(公告)日：2014-01-09
申请号：US13993275
申请日：2012-02-13
申请人： Hideaki Nishida , Keitaro Kamata , Isao Tomita , Takashi Shiraishi , Noriyuki Hayashi , Motoki Ebisu , Hiroshi Suzuki , Hiroshi Ogita
发明人： Hideaki Nishida , Keitaro Kamata , Isao Tomita , Takashi Shiraishi , Noriyuki Hayashi , Motoki Ebisu , Hiroshi Suzuki , Hiroshi Ogita
IPC分类号： F04D29/056 , F16C43/02
CPC分类号： F04D29/056 , F01D1/24 , F01D25/16 , F01D25/162 , F01D25/166 , F01D25/186 , F05D2220/40 , F05D2250/14 , F05D2250/70 , F05D2260/96 , F16C17/028 , F16C17/18 , F16C17/26 , F16C33/1075 , F16C33/14 , F16C43/02 , F16C2220/40 , F16C2220/60 , F16C2220/70 , F16C2360/24 , Y10T29/49668
摘要： A turbocharger and a method of manufacturing a floating bush with which noise can be reduced, and the rotation speed can be increased. In a turbocharger in which a rotating shaft having a circular cross-section and connecting a turbine rotor and a compressor rotor is supported in a freely rotatable manner, at two axially separated positions via floating bushes, by an inner circumferential surface disposed so as to surround the rotating shaft in a bearing housing, an inner circumferential surface of each of the floating bushes has a non-circular shape in which the curvature of the cross-sectional shape varies in the circumferential direction.
摘要翻译：一种涡轮增压器以及能够降低噪声的浮动衬套的制造方法，能够提高转速。在涡轮增压器中，具有圆形横截面并连接涡轮机转子和压缩机转子的旋转轴以可自由旋转的方式被支撑，通过浮动衬套在两个轴向分离的位置处被设置成围绕在轴承壳体中的旋转轴，每个浮动衬套的内周面具有非圆形形状，其中横截面形状的曲率在圆周方向上变化。

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