公开(公告)号：US5381262A

公开(公告)日：1995-01-10

申请号：US104662

申请日：1993-08-11

申请人： Tadao Arima ,  Koji Okamura

发明人： Tadao Arima ,  Koji Okamura

IPC分类号： H01S3/07 ,  G02B6/30 ,  G02B6/42 ,  H01S3/063 ,  H01S3/10 ,  H01S3/17 ,  G02B6/26

CPC分类号： H01S3/063 ,  G02B6/305 ,  G02B6/4203

摘要： Disclosed are a planar wave guide type optical amplifier for amplifying a light signal passing through an optical fiber, a method of manufacturing the above light amplifier, and a laser oscillator using the light amplifier, The planar wave guide type optical amplifier comprises a first core formed to a bar shaped on a substrate and a light amplifying region composed of a part of the first core, having a configuration extending to the longitudinal direction of the first core, and doped with a rare earth element. The method of manufacturing the planar wave guide type optical amplifier comprises the steps of (1) forming a bar-shaped core on a plane substrate, (2) forming a groove to the core which extends to the longitudinal direction thereof, (3) filling the groove with a filler doped with a rare earth element and (4) solidifying the filler. The laser oscillator comprises a first core formed to a bar shape on a substrate, a light amplifying region composed of a part of the first core, having a configuration extending to the longitudinal direction of the first core, and doped with a rare earth element, and light reflecting means provided with the opposite ends of the first core, respectively,

摘要翻译： 公开了一种用于放大通过光纤的光信号的平面波导型光放大器，制造上述光放大器的方法和使用该光放大器的激光振荡器。该平面波导型光放大器包括形成的第一芯 到形成在基板上的条形和由第一芯的一部分组成的光放大区域，具有延伸到第一芯的纵向的构造，并掺杂有稀土元素。 制造平面波导型光放大器的方法包括以下步骤：（1）在平面基板上形成棒状芯，（2）在芯的长度方向上形成凹槽，（3）填充 具有掺杂有稀土元素的填料的凹槽和（4）固化填料。 激光振荡器包括在基板上形成为棒状的第一芯体，由第一芯部的一部分构成的具有延伸到第一芯的纵向方向并且掺杂有稀土元素的构造的光放大区域， 以及分别设置有第一芯的相对端的光反射装置，

公开(公告)号：US5023447A

公开(公告)日：1991-06-11

申请号：US539348

申请日：1990-06-18

申请人： Takayuki Masuko ,  Akira Okamoto ,  Kaoru Moriya ,  Koji Okamura ,  Tadao Arima

发明人： Takayuki Masuko ,  Akira Okamoto ,  Kaoru Moriya ,  Koji Okamura ,  Tadao Arima

IPC分类号： G02B6/42 ,  H01L31/0203 ,  H01L31/0232

CPC分类号： H01L31/0203 ,  G02B6/421 ,  G02B6/4214 ,  G02B6/4248 ,  H01L31/0232 ,  H01L2224/48091 ,  H01L2224/73265 ,  H01L2924/19107

摘要： A photo-semiconductor module is disclosed wherein a reliable airtight condition can be obtained and an operability in assembly can be improved. The photo-semiconductor module comprises a substrate carried in a casing, a photo-semiconductor chip mounted on the substrate, and a support member carried on the substrate and having an inclined face which is inclined by an angle of 45 degrees with respect to a surface of the substrate. A semi-spherical lens is securely mounted on the inclined face of the support member, and an opening formed in a side wall of the casing is sealed airtight by a glass member while an upper portion of the casing is sealed airtight by a lid. When an optical fiber is mounted onto the casing such that an end face thereof may be located in the opening in the side wall of the casing, the optical fiber and the photo-semiconductor chip are optically coupled to each other by way of the semi-spherical lens.

摘要翻译： 公开了一种光半导体模块，其中可以获得可靠的气密状态并且可以提高组装中的可操作性。 光半导体模块包括载置在壳体中的基板，安装在基板上的光电半导体芯片以及承载在基板上并具有相对于表面倾斜45度角的倾斜面的支撑部件 的基底。 半球形透镜被牢固地安装在支撑构件的倾斜面上，并且形成在壳体的侧壁中的开口被玻璃构件密封地密封，同时壳体的上部被盖子密封地密封。 当光纤被安装到壳体上使得其端面可以位于壳体的侧壁中的开口中时，光纤和光电半导体芯片通过半导体光学器件彼此光学耦合， 球面透镜。

公开(公告)号：US5454057A

公开(公告)日：1995-09-26

申请号：US297786

申请日：1994-08-30

申请人： Tadao Arima ,  Koji Okamura

发明人： Tadao Arima ,  Koji Okamura

IPC分类号： G02B6/255 ,  G02B6/28

CPC分类号： G02B6/2835

摘要： A star coupler for interconnecting optical fibers to distribute optical signals. The method for fabricating the star coupler comprises the steps of preparing a tubular member and first and second groups of optical fibers having bare fiber portions extending from the ends. The bared fiber portions of the first and second groups of optical fibers are inserted into the tubular member, in the opposite directions, in an end-to-end abutting relationship. The contacting ends of the bared fiber portions are then molten and fused together. The fused fiber portions are finally stretched together with the tubular member. It is possible to preheat the tubular member at a relatively low temperature so that the tubular member shrinks relative to the bared fiber portions to retain the latter. The obtained star coupler comprises first and second groups of optical fibers inserted into a tubular member in an end-to-end abutment relationship, with the ends joined together. The tubular member has an inner surface in a generally polygonal shape.

摘要翻译： 用于互连光纤以分配光信号的星形耦合器。 制造星形耦合器的方法包括以下步骤：制备管状构件和具有从端部延伸的裸露纤维部分的第一和第二组光纤。 第一和第二组光纤的裸露纤维部分以相反的方向以端对端的邻接关系插入到管状部件中。 然后将裸露的纤维部分的接触端熔融并熔合在一起。 熔融纤维部分最终与管状部件一起拉伸。 可以在相对较低的温度下预热管状构件，使得管状构件相对于裸露的纤维部分收缩以保持管状构件。 所获得的星形耦合器包括以端对端邻接关系插入到管状构件中的第一和第二组光纤，端部连接在一起。 管状构件具有大致多边形形状的内表面。

公开(公告)号：US5496390A

公开(公告)日：1996-03-05

申请号：US235251

申请日：1994-04-29

申请人： Tadao Arima ,  Koji Okamura

发明人： Tadao Arima ,  Koji Okamura

IPC分类号： G02B6/28 ,  G02B6/34 ,  G02B6/42 ,  G02B6/255 ,  C03B37/07

CPC分类号： G02B6/4246 ,  G02B6/2856 ,  G02B2006/2865 ,  G02B6/29332

摘要： A method of manufacturing an optical module for wavelength-division multiplex optical transmission, which module comprises a first optical fiber having a first port at its one end and a second and a third optical fiber fused to the first optical fiber at its side face such that the first optical fiber is positioned in the center between the second and third optical fibers. The manufacturing method comprises a first step of regulating the aspect ratio at the fused portion while heating the fused portion and elongating the fused portion at zero speed or a very low speed and a second step of regulating the coupling length of the fused portion while elongating the fused portion at a higher speed than in the aspect ratio regulating step under the conditions of the heating temperature of the fused portion lowered and the aspect ratio kept unchanged.

摘要翻译： 一种制造用于波分复用光传输的光模块的方法，该模块包括在其一端具有第一端口的第一光纤和在其侧面与第一光纤熔接的第二和第三光纤，使得 第一光纤位于第二和第三光纤之间的中心。 该制造方法包括：第一步骤，在加热熔融部分的同时调节熔融部分的纵横比，并且以零速度或非常低的速度拉长熔融部分;以及第二步骤，调节熔融部分的连接长度，同时延长 在熔融部分的加热温度降低并且纵横比保持不变的条件下，比在纵横比调节步骤中更高的速度熔融部分。

公开(公告)号：US5420949A

公开(公告)日：1995-05-30

申请号：US101061

申请日：1993-08-03

申请人： Tadao Arima ,  Koji Okamura

发明人： Tadao Arima ,  Koji Okamura

IPC分类号： G02B6/024 ,  G02B6/28 ,  G02B6/10 ,  C03B23/20

CPC分类号： G02B6/2835 ,  G02B6/2843

摘要： Disclosed is a polarization-splitting fiber coupler capable of stably executing a polarization separation/coupling and a method of stably manufacturing the polarization-splitting fiber coupler at a low cost. The method comprises the steps of (1) arranging a plurality of non-polarization fibers in parallel so that the side surfaces thereof come into contact to each other; (2) heating and fusing a portion of the arranged non-polarization fibers by controlling a heating temperature and a heating time so that the cross section of the fused portion thereof has an aspect ratio of 1.85-1.95; (3) thereafter, forming a fused/drawn portion by drawing the fused portion while keeping the aspect ratio after lowering the heating temperature; and (4) connecting polarization-maintaining fibers to the respective ends of the fused/drawn portion, respectively. Further, a portion of the connected polarization-maintaining fiber is heated and drawn to a taper-shape to provide the heated-fused portion with a polarizer function.

摘要翻译： 公开了能够稳定地执行偏振分离/耦合的偏振分束光纤耦合器和以低成本稳定地制造偏振分束光纤耦合器的方法。 该方法包括以下步骤：（1）平行布置多个非偏振光纤，使得其侧表面彼此接触; （2）通过控制加热温度和加热时间来加热和熔融所配置的非极化纤维的一部分，使得其熔融部分的横截面具有1.85-1.95的纵横比; （3）之后，通过在降低加热温度后保持纵横比来拉伸熔融部分来形成熔融/拉伸部分; 和（4）将偏振保持光纤分别连接到熔融/拉出部分的各个端部。 此外，连接的偏振保持光纤的一部分被加热并拉伸成锥形，以使加热熔融部分具有偏振器功能。

公开(公告)号：US5299276A

公开(公告)日：1994-03-29

申请号：US958975

申请日：1992-10-09

申请人： Koji Okamura ,  Tadao Arima

发明人： Koji Okamura ,  Tadao Arima

IPC分类号： G02B6/132 ,  G02B6/136 ,  G02B6/30 ,  G02B6/10

CPC分类号： G02B6/132 ,  G02B6/136 ,  G02B6/30

摘要： A method for fabricating a waveguide type optical device is disclosed, through which a core and a reference plane are obtained at the same time by etching a core layer using a thin layer of a predetermined shape formed on the core layer as a mask. In this waveguide type optical device, the core is easily coupled with an optical element such as an optical fiber by means of the reference plane.

摘要翻译： 公开了一种波导型光学器件的制造方法，通过使用形成在芯层上的预定形状的薄层作为掩模，通过蚀刻芯层而同时获得芯和参考平面。 在该波导型光学器件中，芯通过参考平面容易地与诸如光纤的光学元件耦合。

公开(公告)号：US09005082B2

公开(公告)日：2015-04-14

申请号：US14234760

申请日：2012-10-26

申请人： Koji Okamura ,  Takao Nishimura ,  Masatomo Yoshihara ,  Fumikazu Satou

发明人： Koji Okamura ,  Takao Nishimura ,  Masatomo Yoshihara ,  Fumikazu Satou

IPC分类号： B60W10/04 ,  B60W10/18 ,  B60W10/00 ,  F02D41/00 ,  B60W10/06 ,  B60W30/18 ,  B60W30/188 ,  B60W10/11 ,  B60W10/184

CPC分类号： B60W10/06 ,  B60W10/11 ,  B60W10/184 ,  B60W30/18118 ,  B60W30/1884 ,  B60W2510/0638 ,  B60W2510/1015 ,  B60W2520/10 ,  B60W2540/10 ,  B60W2550/142 ,  B60W2710/0644 ,  Y10T477/644 ,  Y10T477/688 ,  Y10T477/814 ,  Y10T477/816

摘要： An ECU increases an engine rotation speed when the ECU determines that an inclination angle of an uphill is larger than or equal to a predetermined value, an accelerator is off and a vehicle speed in a direction opposite to a travelling direction of a vehicle, indicated by a specified range, is increasing. Subsequently, the ECU acquires an engine stall predicted vehicle speed, and calculates a predetermined value used in an immediate engine stall determination condition from a current rate of increase per unit time of a turbine rotation speed. Then, the ECU determines that immediate engine stall determination is affirmative when a rotation speed difference between the engine rotation speed and the turbine rotation speed becomes smaller than the predetermined value, and executes engine stall prevention control.

摘要翻译： 当ECU判定上坡的倾斜角度大于或等于预定值时，ECU增加发动机转速，加速器关闭，与车辆行进方向相反的方向的车速，由 指定范围正在增加。 随后，ECU获取发动机失速预测车速，并且根据涡轮机转速的单位时间的当前增加率来计算即时发动机失速判定条件中使用的预定值。 然后，当发动机转速和涡轮转速之间的转速差变得小于预定值时，ECU确定立即发动机失速确定是肯定的，并且执行发动机失速防止控制。

公开(公告)号：US20140287873A1

公开(公告)日：2014-09-25

申请号：US14234760

申请日：2012-10-26

申请人： Koji Okamura ,  Takao Nishimura ,  Masatomo Yoshihara ,  Fumikazu Satou

发明人： Koji Okamura ,  Takao Nishimura ,  Masatomo Yoshihara ,  Fumikazu Satou

IPC分类号： B60W10/06 ,  B60W10/184 ,  B60W10/11

CPC分类号： B60W10/06 ,  B60W10/11 ,  B60W10/184 ,  B60W30/18118 ,  B60W30/1884 ,  B60W2510/0638 ,  B60W2510/1015 ,  B60W2520/10 ,  B60W2540/10 ,  B60W2550/142 ,  B60W2710/0644 ,  Y10T477/644 ,  Y10T477/688 ,  Y10T477/814 ,  Y10T477/816

摘要： An ECU increases an engine rotation speed when the ECU determines that an inclination angle of an uphill is larger than or equal to a predetermined value, an accelerator is off and a vehicle speed in a direction opposite to a travelling direction of a vehicle, indicated by a specified range, is increasing. Subsequently, the ECU acquires an engine stall predicted vehicle speed, and calculates a predetermined value used in an immediate engine stall determination condition from a current rate of increase per unit time of a turbine rotation speed. Then, the ECU determines that immediate engine stall determination is affirmative when a rotation speed difference between the engine rotation speed and the turbine rotation speed becomes smaller than the predetermined value, and executes engine stall prevention control.

摘要翻译： 当ECU判定上坡的倾斜角度大于或等于预定值时，ECU增加发动机转速，加速器关闭，与车辆行进方向相反的方向的车速，由 指定范围正在增加。 随后，ECU获取发动机失速预测车速，并且根据涡轮机转速的单位时间的当前增加率来计算即时发动机失速判定条件中使用的预定值。 然后，当发动机转速和涡轮转速之间的转速差变得小于预定值时，ECU确定立即发动机失速确定是肯定的，并且执行发动机失速防止控制。

公开(公告)号：US07130064B1

公开(公告)日：2006-10-31

申请号：US09598201

申请日：2000-06-21

申请人： Koji Okamura ,  Naoya Watanabe

发明人： Koji Okamura ,  Naoya Watanabe

IPC分类号： G06F15/00

CPC分类号： H04N1/56

摘要： An image processing system includes an input unit, a selecting unit, a determining unit and a control unit. The input unit inputs one of a color image and a monochrome image, and the selecting unit selects either a normal recording mode for recording an image on a recording material at a predetermined recording density, and a decimation recording mode for recording the image on the recording material at a recording density lower than that of the normal recording mode. The determining unit determines if the input image is a color image or a monochrome image, and the control unit changes to the normal recording mode, when the decimation recording mode is selected and the input image is determined to be a color image.

摘要翻译： 图像处理系统包括输入单元，选择单元，确定单元和控制单元。 输入单元输入彩色图像和单色图像之一，并且选择单元以预定的记录密度选择用于在记录材料上记录图像的正常记录模式，以及用于在记录上记录图像的抽取记录模式 材料的记录密度低于正常记录模式。 当选择抽取记录模式并将输入图像确定为彩色图像时，确定单元确定输入图像是彩色图像还是单色图像，并且控制单元改变为正常记录模式。

公开(公告)号：US20110102814A1

公开(公告)日：2011-05-05

申请号：US12911584

申请日：2010-10-25

申请人： Koji Okamura

发明人： Koji Okamura

IPC分类号： G06F15/00 ,  H04N7/18

CPC分类号： H04N7/188

摘要： An apparatus extracts a template pattern from first data, and seek an area having a correlation with the template pattern among areas in second data to obtain an amount of movement of an object, and corrects the amount of movement by using a shift amount of the object during a time lag between the generation timing of a trigger signal for acquiring data by using a sensor, and the imaging timing.

摘要翻译： 一种装置从第一数据提取模板图案，并且在第二数据中的区域之间寻找与模板图案相关的区域以获得对象的移动量，并且通过使用对象的移位量来校正移动量 在用于通过使用传感器获取数据的触发信号的产生定时与成像定时之间的时间滞后期间。