公开(公告)号：US08816772B2

公开(公告)日：2014-08-26

申请号：US13180752

申请日：2011-07-12

申请人： Yoshiyuki Sugimoto ,  Sosaku Sawada ,  Taizo Tatsumi

发明人： Yoshiyuki Sugimoto ,  Sosaku Sawada ,  Taizo Tatsumi

IPC分类号： H03F3/45

CPC分类号： H03F3/45098 ,  H03F3/08 ,  H03F3/087 ,  H03F3/45103 ,  H03F3/45475 ,  H03F2203/45138 ,  H03F2203/45302 ,  H03F2203/45702 ,  H03G3/3084

摘要： A differential circuit with a function of a variable gain without shifting the output cross point is disclosed. The differential circuit includes an amplifying stage and a control stage. The amplifying stage includes three units each having a pair of transistors, a pair of load resistors, and a pair of current sources. The second and third units each put between the first unit and the load resistor to bypass the current. The control stage includes two units and two current sources to compensate the current bypassed by the second or third unit to keep the DC output level substantially in constant.

摘要翻译： 公开了具有可变增益的功能而不移动输出交叉点的差分电路。 差分电路包括放大级和控制级。 放大级包括三个单元，每个具有一对晶体管，一对负载电阻和一对电流源。 第二和第三单元分别放在第一单元和负载电阻之间绕过电流。 控制级包括两个单元和两个电流源，以补偿由第​​二或第三单元旁路的电流，以保持DC输出电平基本上恒定。

公开(公告)号：US20120018622A1

公开(公告)日：2012-01-26

申请号：US13180752

申请日：2011-07-12

申请人： Yoshiyuki SUGIMOTO ,  Sosaku Sawada ,  Taizo Tatsumi

发明人： Yoshiyuki SUGIMOTO ,  Sosaku Sawada ,  Taizo Tatsumi

IPC分类号： H03F3/08 ,  H03F3/45

CPC分类号： H03F3/45098 ,  H03F3/08 ,  H03F3/087 ,  H03F3/45103 ,  H03F3/45475 ,  H03F2203/45138 ,  H03F2203/45302 ,  H03F2203/45702 ,  H03G3/3084

摘要： A differential circuit with a function of a variable gain without shifting the output cross point is disclosed. The differential circuit includes an amplifying stage and a control stage. The amplifying stage includes three units each having a pair of transistors, a pair of load resistors, and a pair of current sources. The second and third units each put between the first unit and the load resistor to bypass the current. The control stage includes two units and two current sources to compensate the current bypassed by the second or third unit to keep the DC output level substantially in constant.

摘要翻译： 公开了具有可变增益的功能而不移动输出交叉点的差分电路。 差分电路包括放大级和控制级。 放大级包括三个单元，每个具有一对晶体管，一对负载电阻和一对电流源。 第二和第三单元分别放在第一单元和负载电阻之间绕过电流。 控制级包括两个单元和两个电流源，以补偿由第​​二或第三单元旁路的电流，以保持DC输出电平基本上恒定。

公开(公告)号：US08704592B2

公开(公告)日：2014-04-22

申请号：US13428374

申请日：2012-03-23

申请人： Taizou Tatsumi ,  Keiji Tanaka ,  Sosaku Sawada

发明人： Taizou Tatsumi ,  Keiji Tanaka ,  Sosaku Sawada

IPC分类号： H03F3/60

CPC分类号： H03F3/45089 ,  H03F3/45475 ,  H03F3/605 ,  H03F2203/45138 ,  H03F2203/45392 ,  H03F2203/45612

摘要： A traveling wave amplifier (TWA) primarily for driving a semiconductor optical device is disclosed. The TWA of an embodiment provides a plurality of differential amplifiers of the first type and an additional differential amplifier of the second type, where are they are connected between the input and the output of the TWA. The differential amplifiers of the first type provide a first delay from the input to the output, while, the differential amplifier of the second type provide a second delay longer than the first delay between the input and the output of the TWA.

摘要翻译： 公开了主要用于驱动半导体光学器件的行波放大器（TWA）。 实施例的TWA提供第一类型的多个差分放大器和第二类型的附加差分放大器，它们连接在TWA的输入和输出之间。 第一类型的差分放大器提供从输入到输出的第一延迟，而第二类型的差分放大器提供比TWA的输入和输出之间的第一延迟更长的第二延迟。

公开(公告)号：US5596665A

公开(公告)日：1997-01-21

申请号：US551270

申请日：1995-10-31

申请人： Hiromi Kurashima ,  Hisato Takahashi ,  Ken-ichi Kitayama ,  Ryoji Sakamoto ,  Sosaku Sawada ,  Takeshi Sekiguchi ,  Ichiro Tonai ,  Nobuo Shiga

发明人： Hiromi Kurashima ,  Hisato Takahashi ,  Ken-ichi Kitayama ,  Ryoji Sakamoto ,  Sosaku Sawada ,  Takeshi Sekiguchi ,  Ichiro Tonai ,  Nobuo Shiga

IPC分类号： G02B6/42

CPC分类号： G02B6/4292 ,  G02B6/4246 ,  G02B6/4274 ,  G02B6/4281 ,  G02B6/4283 ,  G02B6/4245 ,  G02B6/4263 ,  G02B6/4269

摘要： It is an object of the present invention to provide an optical module having a structure in which alignment precision of sleeves to be accommodated to a housing can be improved with a simple operation. The optical module according to the present invention is characterized by providing special structures for defining the positions of the sleeves to a sleeve holder for holding the sleeves, and the housing having a cavity for accommodating the sleeves. In particular, the housing includes support portions each having a reference surface for defining the fixing position of the corresponding sleeve. The sleeve holder includes spring pieces each for urging the sleeve to the reference surface.

摘要翻译： 本发明的目的是提供一种光学模块，其具有能够通过简单的操作来提高容纳在壳体中的套筒的对准精度的结构。 根据本发明的光学模块的特征在于提供用于将套筒定位到用于保持套筒的套筒保持器的位置的特殊结构，并且壳体具有用于容纳套筒的空腔。 特别地，壳体包括各自具有用于限定相应套筒的固定位置的参考表面的支撑部分。 套筒保持器包括用于将套筒推压到参考表面的弹簧片。

公开(公告)号：US5489798A

公开(公告)日：1996-02-06

申请号：US267439

申请日：1994-06-29

申请人： Kentaro Doguchi ,  Goro Sasaki ,  Hiroshi Yano ,  Sosaku Sawada

发明人： Kentaro Doguchi ,  Goro Sasaki ,  Hiroshi Yano ,  Sosaku Sawada

IPC分类号： H01L27/144 ,  H01L31/0224 ,  H01L29/06 ,  H01L29/78

CPC分类号： H01L27/1443 ,  H01L31/022416

摘要： In an opto-electronic integrated circuit of the present invention, in a first surface region of a semiconductor substrate, a pin-type photodiode is constituted on the basis of a photodiode layer formed on a first transistor layer. In a second surface region of the semiconductor substrate, a heterojunction bipolar transistor is constituted on the basis of only a second transistor layer separated form the first transistor layer. Since a plurality of heterojunction bipolar transistors are normally integrated for one pin-type photodiode, the thickness of the heterojunction bipolar transistors larger in number than the pin-type photodiode is set regardless of the thickness of the pin-type photodiode. The thickness of a high-resistance layer in the pin-type photodiode is set with an increased degree of freedom. When the first surface region of the semiconductor substrate is the inner region of a recessed step portion, and the second surface region of the semiconductor substrate is the outer region of the recessed step portion, a difference in thickness between the heterojunction bipolar transistor and the pin-type photodiode is absorbed by the depth of the recessed step portion. For this reason, the pin-type photodiode and the heterojunction bipolar transistor are formed to have almost the same surface level.

摘要翻译： 在本发明的光电集成电路中，在半导体衬底的第一表面区域中，基于形成在第一晶体管层上的光电二极管层构成针型光电二极管。 在半导体衬底的第二表面区域中，基于仅从第一晶体管层分离的第二晶体管层构成异质结双极晶体管。 由于多个异质结双极晶体管通常集成在一个pin型光电二极管中，所以与pin型光电二极管的厚度无关地设定比pin型光电二极管数量大的异质结双极型晶体管的厚度。 针型光电二极管中的高电阻层的厚度设定为增加的自由度。 当半导体衬底的第一表面区域是凹入阶梯部分的内部区域，并且半导体衬底的第二表面区域是凹陷步骤部分的外部区域时，异质结双极晶体管和引脚之间的厚度差 型光电二极管被凹陷台阶部分的深度吸收。 为此，pin型光电二极管和异质结双极晶体管形成为具有几乎相同的表面水平。

公开(公告)号：US5426480A

公开(公告)日：1995-06-20

申请号：US241576

申请日：1994-05-12

申请人： Ryosaku Sawada ,  Kensaku Sawada ,  Kosaku Sawada ,  Sosaku Sawada ,  Mikio Matsui

发明人： Ryosaku Sawada ,  Kensaku Sawada ,  Kosaku Sawada ,  Sosaku Sawada ,  Mikio Matsui

IPC分类号： G03D3/13 ,  G03D3/08 ,  G03D13/02

CPC分类号： G03D3/132

摘要： A photographic film processing apparatus comprises a water tank for containing a constant quantity of fresh water, and one or a plurality of processing units each comprising a pair of feed rollers disposed with their circumferences in close contact with each other, a pair of delivery rollers spaced apart from the pair of feed rollers and disposed with their circumferences in close contact with each other, a pair of sealing rollers disposed with the circumference of one of them in close contact with the circumferences of the top feed roller and the top delivery roller and with the circumference of the other in close contact with the circumferences of the bottom feed roller and the bottom delivery roller, and a pair of support plates disposed respectively on the opposite sides of the rollers so as to support the rollers for rotation and to define a liquid-tight processing chamber by the circumferences of the rollers and the inner surfaces thereof. The processing unit or units are immersed completely in fresh water contained in the water tank, and a processing liquid is circulated through each processing chamber, at a high velocity across the direction of travel of a film in the processing chamber.

摘要翻译： 照相胶片处理装置包括一个用于容纳恒定量的淡水的水箱，以及一个或多个处理单元，每个处理单元包括彼此紧密接触地布置的一对进给辊，一对输送辊间隔开 除了一对进给辊之外，它们的周长彼此紧密接触，一对密封辊设置成其一个的周边与顶部进料辊和顶部输送辊的周边紧密接触，并且与 另一个的圆周与底部进料辊和底部输送辊的周边紧密接触，以及分别设置在辊的相对侧上的一对支撑板，以便支撑辊以旋转并限定液体 该处理室由辊的周向及其内表面组成。 处理单元完全浸没在水箱中的淡水中，并且处理液体以高速跨过处理室中的膜的行进方向循环通过每个处理室。

公开(公告)号：US07585120B2

公开(公告)日：2009-09-08

申请号：US11362792

申请日：2006-02-28

申请人： Makoto Ito ,  Sosaku Sawada

发明人： Makoto Ito ,  Sosaku Sawada

IPC分类号： G02B6/36 ,  G02B6/26 ,  G02B6/42

CPC分类号： G02B6/4227 ,  G02B6/4204

摘要： An optical device includes: a first optical component that has an end face oblique with respect to a plane perpendicular to an optical axis; a second optical component that is optically coupled to the first optical component; and a lens that is placed between the first optical component and the second optical component, and is positioned so that the trajectory of a focal point formed when the first optical component and the second optical component rotate relative to each other falls within a valid region on the surface of the second optical component.

摘要翻译： 光学装置包括：第一光学部件，其具有相对于垂直于光轴的平面倾斜的端面; 光学耦合到第一光学部件的第二光学部件; 以及放置在第一光学部件和第二光学部件之间的透镜，并且被定位成使得当第一光学部件和第二光学部件相对于彼此旋转时形成的焦点的轨迹落在有效区域内 第二光学部件的表面。

公开(公告)号：US07579915B2

公开(公告)日：2009-08-25

申请号：US11727960

申请日：2007-03-29

申请人： Taizou Tatsumi ,  Sosaku Sawada

发明人： Taizou Tatsumi ,  Sosaku Sawada

IPC分类号： H03F3/08

CPC分类号： H03F3/087 ,  H03F1/08 ,  H03F2200/78

摘要： An electronic circuit includes: a control circuit that controls the gain of a transimpedance amplifier by taking part of an input current to be input to the transimpedance amplifier, based on the output voltage of the transimpedance amplifier; and a PIN diode that is provided between an input of the transimpedance amplifier and the control circuit, and is connected in the forward direction with respect to the current to be drawn into the control circuit.

摘要翻译： 电子电路包括：控制电路，其基于所述跨阻抗放大器的输出电压，通过将输入到所述跨阻抗放大器的一部分输入电流控制跨阻抗放大器的增益; 以及PIN二极管，其设置在跨阻放大器的输入端和控制电路之间，并且相对于要吸入控制电路的电流在正向方向上连接。

公开(公告)号：US20060193568A1

公开(公告)日：2006-08-31

申请号：US11362792

申请日：2006-02-28

申请人： Makoto Ito ,  Sosaku Sawada

发明人： Makoto Ito ,  Sosaku Sawada

IPC分类号： G02B6/36

CPC分类号： G02B6/4227 ,  G02B6/4204

摘要： An optical device includes: a first optical component that has an end face oblique with respect to a plane perpendicular to an optical axis; a second optical component that is optically coupled to the first optical component; and a lens that is placed between the first optical component and the second optical component, and is positioned so that the trajectory of a focal point formed when the first optical component and the second optical component rotate relative to each other falls within a valid region on the surface of the second optical component.

公开(公告)号：US5742480A

公开(公告)日：1998-04-21

申请号：US552351

申请日：1995-11-02

申请人： Sosaku Sawada ,  Ryoji Sakamoto ,  Hiromi Kurashima ,  Daisuke Takagi ,  Satoshi Ohe ,  Takeshi Sekiguchi ,  Nobuo Shiga

发明人： Sosaku Sawada ,  Ryoji Sakamoto ,  Hiromi Kurashima ,  Daisuke Takagi ,  Satoshi Ohe ,  Takeshi Sekiguchi ,  Nobuo Shiga

IPC分类号： G02B6/42 ,  H05K1/00 ,  H05K1/11 ,  H05K1/18 ,  H05K3/00 ,  H05K3/30 ,  H05K3/34 ,  H01R9/09

CPC分类号： H05K1/189 ,  G02B6/4274 ,  G02B6/4281 ,  G02B6/4283 ,  G02B6/4245 ,  G02B6/4269 ,  H05K1/0393 ,  H05K1/118 ,  H05K2201/10151 ,  H05K2201/1034 ,  H05K2201/10446 ,  H05K2201/10636 ,  H05K2201/10651 ,  H05K2201/10689 ,  H05K2201/2009 ,  H05K3/0058 ,  H05K3/306 ,  H05K3/3447 ,  Y02P70/611

摘要： It is an object of the present invention to provide a highly reliable optical module circuit board having a sufficient mechanical strength with respect to an external stress. An optical module circuit board according to the present invention includes a flexible printed circuit having at least a multilayered structure in which a layer containing a conductive metal interconnection is sandwiched between insulating layers, wherein the flexible printed circuit includes a main body portion having the multilayered structure, a first surface mounted with an electronic component, and a second surface opposite to the first surface, a neck portion having the multilayered structure and extending from one end of the main body portion, and a head portion positioned at a distal end of the neck portion extending from the one end of the main body portion, having the multilayered structure, and mounted with an optical operation element and a bypass capacitor, Particularly, the neck portion defines the positional relationship between the main body portion and the head portion so as to give the circuit board a sufficient mechanical strength.

摘要翻译： 本发明的目的是提供一种具有足够的机械强度相对于外部应力的高度可靠的光学模块电路板。 根据本发明的光学模块电路板包括具有至少多层结构的柔性印刷电路，其中包含导电金属互连的层被夹在绝缘层之间，其中柔性印刷电路包括具有多层结构的主体部分 ，安装有电子部件的第一表面和与第一表面相对的第二表面，具有多层结构并从主体部分的一端延伸的颈部和位于颈部的远端的头部 具有多层结构的主体部分的一端延伸并安装有光操作元件和旁路电容器的部分，特别地，颈部限定主体部分和头部之间的位置关系，从而 给电路板提供足够的机械强度。