公开(公告)号：US20080095540A1

公开(公告)日：2008-04-24

申请号：US10598503

申请日：2005-06-02

申请人： Katsuya Oda ,  Hitomaro Tohgoh ,  Yoshiyasu Sato ,  Hiroaki Asano

发明人： Katsuya Oda ,  Hitomaro Tohgoh ,  Yoshiyasu Sato ,  Hiroaki Asano

IPC分类号： H04B10/04 ,  H04B10/00

CPC分类号： H04B10/2575

摘要： An object of the invention is to clear up factors in deterioration due to optical reflection and to provide an optical transmission apparatus and an optical transmission system in which a superior optical transmission characteristic can be obtained for analog signals even if a reflection phenomenon occurs in an optical transmission line. There are provided a frequency converter (3) for converting the frequency band of a to-be-transmitted electric signal into a predetermined frequency band higher that this frequency band, and a semiconductor laser (4) serving as an electro-optic converter for performing electro-optic conversion upon the frequency-converted electric signal.

摘要翻译： 本发明的目的是清除由于光反射引起的劣化的因素，并且提供一种光传输装置和光传输系统，其中即使在光学器件中发生反射现象也可以获得模拟信号的优异的光传输特性 传输线。 提供了一种变频器（3），用于将待发射电信号的频带转换成该频带高的预定频带，以及用作电光转换器的半导体激光器（4），用于执行 经变频电信号的电光转换。

公开(公告)号：US20080031635A1

公开(公告)日：2008-02-07

申请号：US10596893

申请日：2004-12-06

申请人： Hitomaro Tohgoh ,  Katsuya Oda ,  Yoshiyasu Sato ,  Hiroaki Asano

发明人： Hitomaro Tohgoh ,  Katsuya Oda ,  Yoshiyasu Sato ,  Hiroaki Asano

IPC分类号： H04B10/155

CPC分类号： H01S5/06804 ,  H01S5/0427 ,  H01S5/0683 ,  H01S2301/02

摘要： An object of the present invention is to provide an optical transmitter that can suppress degradation of distortion characteristic and RIN characteristic caused by relaxation oscillation at high temperature by controlling average driving current of a light emitting element so that the average optical output power of the light emitting element is increased as the temperature increases like a case where the environmental temperature around the light emitting element increases.

摘要翻译： 本发明的目的是提供一种光发送器，其通过控制发光元件的平均驱动电流来抑制由高温下的弛豫振荡引起的失真特性和RIN特性的劣化，使得发光的平均光输出功率 随着温度升高，元件随着发光元件周围的环境温度升高而增加。

公开(公告)号：US20070197258A1

公开(公告)日：2007-08-23

申请号：US10592329

申请日：2005-06-02

申请人： Katsuya Oda ,  Hitomaro Tohgoh ,  Yoshiyasu Sato ,  Hiroaki Asano

发明人： Katsuya Oda ,  Hitomaro Tohgoh ,  Yoshiyasu Sato ,  Hiroaki Asano

IPC分类号： H04Q7/20 ,  H04M1/00 ,  H04B1/38

CPC分类号： H04J14/02 ,  H04B10/25758 ,  H04J14/0221

摘要： Up and down signal levels in a wireless base station and a forward base station can be automatically adjusted into predetermined levels respectively with a simple configuration. In an interface portion 12, a pilot signal P of a predetermined level is generated by a pilot signal generator 120, and multiplexed with a down transmission signal 111 from a wireless base station 11 by a multiplexer 121. The multiplexed signal is amplified with a constant gain by a down signal amplifier 122, then converted into a down optical signal by an electro-optic converter 123, wavelength-multiplexed by an optical multi/demultiplexer 124, sent out to an optical fiber 15, and transmitted to a forward base station 13. In the forward base station 13, the down optical signal wavelength-demultiplexed by an optical multi/demultiplexer 124 is converted into a down electric signal by an opto-electric converter 125, and the pilot signal P is demultiplexed by a demultiplexer 133. A gain control unit 130 detects an absolute level of the pilot signal P, and outputs a gain control signal G1 to set the level value at a predetermined rated value. A down signal gain variable amplifier 134 and an up signal gain variable amplifier 136 amplify the down transmission signal and the up reception signal respectively with a gain controlled by the gain control signal G1.

摘要翻译： 无线基站和前向基站中的上下信号电平可以分别以简单的配置自动调整到预定的电平。 在接口部分12中，由导频信号发生器120产生预定电平的导频信号P，并通过多路复用器121与来自无线基站11的下行发送信号111进行多路复用。 多路复用信号由下行信号放大器122以恒定增益放大，然后由电光转换器123转换成降低的光信号，由光多路复用器124波分复用，发送到光纤15， 并发送到前向基站13。 在正向基站13中，由光多路复用器124波分复用的下行光信号通过光电转换器125转换成降电信号，并且导频信号P被解复用器133解复用。 增益控制单元130检测导频信号P的绝对电平，并输出增益控制信号G 1，将电平值设定在预定的额定值。 下降信号增益可变放大器134和上升信号增益可变放大器136分别利用增益控制信号G 1所控制的增益放大下行传输信号和上行接收信号。

公开(公告)号：US20070064761A1

公开(公告)日：2007-03-22

申请号：US10575460

申请日：2004-10-25

申请人： Hitomaro Togo ,  Katsuya Oda ,  Yoshiyasu Sato ,  Hiroaki Asano

发明人： Hitomaro Togo ,  Katsuya Oda ,  Yoshiyasu Sato ,  Hiroaki Asano

IPC分类号： H01S3/08

CPC分类号： G02B6/4206 ,  G02B6/4207 ,  G02B6/4219

摘要： Optical transmission apparatus 100 is provided with laser element 101 and optical fiber 102 and has an optimum position where the efficiency of optical coupling between laser element 101 and optical fiber 102 becomes a maximum. Laser element 101 and optical fiber 102 are fixed at positions shifted from the optimum position in the direction of the optical axis by a value within a range from 10 μm to 150 μm. It is possible to construct the apparatus such that outgoing light of laser element 101 is not parallel to the optical axis of outgoing light from an end face of optical fiber 102 and the outgoing light of laser element 101 is not parallel to the optical axis of light reflected on the end face of optical fiber 102.

摘要翻译： 光传输装置100设置有激光元件101和光纤102，并且具有最佳位置，其中激光元件101和光纤102之间的光耦合效率最大。 激光元件101和光纤102固定在从光轴方向的最佳位置偏移10um到150μm的范围内的值。 可以构成为使得激光元件101的出射光不与光纤102的端面的出射光的光轴平行，并且激光元件101的出射光不平行于光的光轴 反射在光纤102的端面上。

公开(公告)号：US20050248822A1

公开(公告)日：2005-11-10

申请号：US10525507

申请日：2003-08-26

申请人： Hitomaro Tohgoh ,  Hiroaki Asano ,  Hitoshi Uno ,  Masaki Kobayashi ,  Nobutaka Itabashi ,  Nobuyuki Akiya

发明人： Hitomaro Tohgoh ,  Hiroaki Asano ,  Hitoshi Uno ,  Masaki Kobayashi ,  Nobutaka Itabashi ,  Nobuyuki Akiya

IPC分类号： G02B6/42 ,  G03H1/00

CPC分类号： G02B6/421 ,  G02B6/4214 ,  G02B6/4246

摘要： A small-sized optical transceiver module, wherein any stress attributable to the differences in coefficient of thermal expansion between a transmission section optical system, a receiving section optical system, and the components which integrate and fix them and the like is not applied therebetween, and which is not influenced by any stress at the time of attachment/detachment of the optical connector is disclosed. The optical transceiver module is one wherein the transmission section optical system 1 which comprises a laser diode and an optical fiber or an optical waveguide optically connected to the laser diode and of which the electric input terminal of the laser diode is a flexible cable, a receiving section optical system 2 which comprises a photo diode and an optical fiber or an optical waveguide optically connected to the photo diode and of which the electric output terminal of the photo diode is a flexible cable, and an optical I/O optical receptacle 3 are optically connected, mechanically integrated and fixed, and the two flexible cables are spatially spaced out and disposed.

摘要翻译： 一种小尺寸的光收发模块，其中不会在其间施加归因于传输部分光学系统，接收部分光学系统和其组合和固定它们的部件之间的热膨胀系数差异的任何应力， 公开了在光连接器的附接/拆卸时不受任何应力的影响。 光收发器模块是其中传输部分光学系统1包括激光二极管和光纤或光学波导，光学连接到激光二极管，激光二极管的电输入端是柔性电缆，接收器 包括光电二极管和光纤或与光电二极管光学连接的光波导，其光电二极管的电输出端为柔性电缆，光学I / O光插座3为光学 连接，机械一体化和固定，并且两个柔性电缆在空间上间隔开并布置。

公开(公告)号：US06819840B2

公开(公告)日：2004-11-16

申请号：US10176106

申请日：2002-06-21

申请人： Hitomaro Tohgoh ,  Hiroaki Asano

发明人： Hitomaro Tohgoh ,  Hiroaki Asano

IPC分类号： G02B630

CPC分类号： G02B6/4214 ,  G02B6/4228 ,  G02B6/4239 ,  G02B6/4246 ,  H01L2224/48091 ,  H01L2924/00014

摘要： The present invention discloses an optical transmitting/receiving module designed in small size and produced at low cost without the need to use an optical waveguide, which requires complicated process and larger area, and the invention also discloses a method for manufacturing such an optical transmitting/receiving module. According to the present invention, a V-groove running in linear direction and a vertical groove (a groove having vertical side surfaces) crossing obliquely said V-groove at the end of the V-groove, an optical fiber core is arranged to the end of the V-groove, a wavelength selective filter is arranged in the vertical groove, and a light emitting element and a light receiving element are arranged respectively in transmitting direction and reflecting direction of the wavelength selective filter.

摘要翻译： 本发明公开了一种设计成小尺寸且低成本生产的光发射/接收模块，而不需要使用需要复杂工艺和更大面积的光波导，本发明还公开了一种用于制造这种光发射/ 接收模块。 根据本发明，在V形槽的端部沿直线行进的V形槽和倾斜地与所述V形槽交叉的垂直槽（具有垂直侧面的槽）形成一个光纤芯， 在波长选择滤光器的透射方向和反射方向上分别布置有波长选择滤光器，并且发光元件和受光元件分别布置在垂直槽中。

公开(公告)号：US20060245696A1

公开(公告)日：2006-11-02

申请号：US10547970

申请日：2004-03-05

申请人： Yoshiyasu Sato ,  Hitomaro Tougu ,  Hiroaki Asano

发明人： Yoshiyasu Sato ,  Hitomaro Tougu ,  Hiroaki Asano

IPC分类号： G02B6/36

CPC分类号： H05K3/306 ,  G02B6/3604 ,  G02B6/4206 ,  H01S5/02212 ,  H01S5/02284 ,  H05K2201/09418 ,  H05K2201/09809 ,  H05K2201/10121

摘要： A technique to improve degree of freedom in mounting an electrode of an optical device on a wiring substrate without being affected by an angle in the optical fiber circumferential direction of the optical device provided for an optical module is disclosed. According to the technique, an optical device 5, from which a plurality of electrodes 61 to 64 protrude; and a wiring substrate 7, in which a plurality of electrical wirings 10 to connect to the respective plurality of electrodes are formed approximately concentrically are included. Respective ends of the electrodes are connected to the respective plurality of electrical wirings so that distances between the respective ends of the plurality of electrodes and the center of the optical device are different from each other.

摘要翻译： 公开了一种提高光学元件的电极在布线基板上的自由度的技术，而不受光学元件的光纤圆周方向的角度的影响。 根据该技术，多个电极61〜64突出的光学装置5， 并且包括其中连接到相应的多个电极的多个电布线10大致同心地形成的布线基板7。 电极的相应端部连接到相应的多个电气布线，使得多个电极的各个端部与光学装置的中心之间的距离彼此不同。

公开(公告)号：US20140251659A1

公开(公告)日：2014-09-11

申请号：US14129408

申请日：2012-07-02

申请人： Hiroaki Asano ,  Yasuhiro Koike ,  Kiminori Ozaki ,  Hitoshi Shimadu ,  Tetsuya Furuta ,  Masao Miyake ,  Takahiro Hayakawa ,  Tomoaki Asai ,  Ryou Yamauchi

发明人： Hiroaki Asano ,  Yasuhiro Koike ,  Kiminori Ozaki ,  Hitoshi Shimadu ,  Tetsuya Furuta ,  Masao Miyake ,  Takahiro Hayakawa ,  Tomoaki Asai ,  Ryou Yamauchi

IPC分类号： H05K1/11 ,  H05K3/30 ,  H05K1/09 ,  H05K3/00 ,  H05K1/02 ,  H05K1/18

CPC分类号： H05K1/115 ,  H05K1/0201 ,  H05K1/0272 ,  H05K1/09 ,  H05K1/185 ,  H05K3/0058 ,  H05K3/0061 ,  H05K3/30 ,  H05K3/341 ,  H05K3/38 ,  H05K3/4038 ,  H05K2201/0305 ,  H05K2201/09063 ,  H05K2201/0969 ,  H05K2203/1178 ,  Y10T29/4913

摘要： A circuit board, onto which an electronic component is to be mounted, is provided with insulating core substrates and patterned metal plates. The metal plates are bonded to at least one side of the insulating core substrates. The insulating core substrates and the metal plates form a laminated body, in which a gas-vent hole is provided. The gas-vent hole is formed so that when the electronic component is mounted, the gas present between the insulating core substrates and the metal plates expands and is released to a side open to the atmosphere via the gas-vent hole.

摘要翻译： 安装有电子部件的电路板设置有绝缘芯基板和图案化的金属板。 金属板结合到绝缘芯基板的至少一侧。 绝缘芯基板和金属板形成层压体，其中设有排气孔。 排气孔形成为使得当安装电子部件时，存在于绝缘芯基板和金属板之间的气体膨胀并且经由排气孔被释放到大气开放的一侧。

公开(公告)号：US20060232172A1

公开(公告)日：2006-10-19

申请号：US11405493

申请日：2006-04-18

申请人： Hiroaki Asano ,  Hidekazu Hattori ,  Yoichi Kobane

发明人： Hiroaki Asano ,  Hidekazu Hattori ,  Yoichi Kobane

IPC分类号： H01L41/083

CPC分类号： H01L41/0472 ,  F02M51/005 ,  F02M51/0603

摘要： A laminated-type piezoelectric element 1 is provided, which comprises a first external electrode layer 33, which is located at a side area of the laminated-type piezoelectric element 1, is electrically continuous to internal electrode layers 21, and comprises plural expansible and contractible opening portions 33a in a stacking direction of the laminated-type piezoelectric element 1. As the first external electrode layer 33 is connected to the laminated-type piezoelectric element 1 with an electrically conductive adhesive member 32 and the electrically conductive adhesive member 32 is narrower than the first external electrode layer 33, the electrically conductive adhesive member 32 penetrates into the opening portions 33a of the first external electrode layer 33 to form connections in a shape of an anchor. Therefore, the first external electrode layer 33 is firmly connected to the laminated-type piezoelectric element 1.

摘要翻译： 设置层压型压电元件1，其包括位于层叠型压电元件1的侧面区域的第一外部电极层33与内部电极层21电连接，并且包括多个可膨胀和收缩的 层叠型压电元件1的层叠方向的开口部33a。 由于第一外部电极层33与导电性粘合部件32连接到层叠型压电元件1，导电性粘接部件32比第一外部电极层33窄，所以导电性粘接部件32贯通到 第一外部电极层33的开口部分33a以形成锚固件的连接。 因此，第一外部电极层33牢固地连接到层叠型压电元件1。

公开(公告)号：US5562523A

公开(公告)日：1996-10-08

申请号：US316373

申请日：1994-09-30

申请人： Hiroaki Asano ,  Takao Yoneda ,  Takayuki Hotta

发明人： Hiroaki Asano ,  Takao Yoneda ,  Takayuki Hotta

IPC分类号： B24B47/20 ,  B24B5/04 ,  B24B49/04 ,  B24B49/10 ,  B24B51/00 ,  G05B19/416 ,  B24B49/00

CPC分类号： B24B51/00 ,  B24B49/04 ,  G05B19/4166 ,  G05B2219/37345 ,  G05B2219/49184 ,  G05B2219/49316 ,  G05B2219/50087

摘要： In a grinding method wherein a rotating workpiece and a rotating grinding wheel are relatively moved toward and away from each other and wherein at least three of rough, fine and finish grinding step are performed successively at high, medium and low infeed rates respectively for grinding the workpiece, the grinding wheel is retracted to a back-off position at the end of the rough grinding step. To calculate the back-off position, a first residual grinding amount which is left unground due to the bending of the workpiece is calculated based upon the diameter of the workpiece and the position of the grinding wheel which are detected respectively by an in-process measuring device and an absolute encoder at the end of the rough grinding step, and a second residual grinding amount of the workpiece at the end of the fine grinding step is estimated based upon the first residual grinding amount and a third residual grinding amount which has been calculated at the end of the finish grinding step for a preceding workpiece portion. The back-off position is calculated from the difference between the first and second residual grinding amounts.

摘要翻译： 在其中旋转工件和旋转砂轮彼此相对移动并相互移动的研磨方法中，其中分别以高，中和低进给速度连续地执行粗，精和精磨阶段中的至少三个，用于研磨 工件时，在粗磨阶段结束时，砂轮回缩到回退位置。 为了计算回退位置，基于工件的直径和砂轮的位置来计算由于工件的弯曲而未被磨削的第一残余磨削量，其通过进程中的测量分别被检测 装置和粗磨步骤结束时的绝对编码器，并且基于已经计算出的第一残余研磨量和第三残余研磨量来估计在细研磨步骤结束时的工件的第二残余磨削量 在前一工件部分的精磨步骤结束时。 回退位置是根据第一和第二残余研磨量之差计算的。