公开(公告)号：US07321702B2

公开(公告)日：2008-01-22

申请号：US11041953

申请日：2005-01-26

申请人： Suguru Akiyama ,  Tsuyoshi Yamamoto

发明人： Suguru Akiyama ,  Tsuyoshi Yamamoto

IPC分类号： G02F1/035

CPC分类号： G02F1/2255 ,  B82Y20/00 ,  G02F1/0121 ,  G02F1/01708 ,  G02F1/225 ,  G02F1/2257 ,  G02F2201/122 ,  G02F2203/05 ,  H04B10/505 ,  H04B10/50575 ,  H04B10/58

摘要： An optical interference unit branching inputted input light into two optical waveguides, combining the respective branched lights propagating through the respective optical waveguides and outputting modulated light is included, and bias voltage supplied to at least one optical waveguide out of the two optical waveguides is controlled in accordance with wavelength of the input light. Further, a phase of the modulated light is controlled by phase adjusting voltage in accordance with the wavelength of the input light.

摘要翻译： 包括将输入的输入光分支到两个光波导中的光学干涉单元，将通过各个光波导传播的相应分支光组合并输出调制的光，并且将从两个光波导中的至少一个光波导提供的偏置电压控制在 根据输入光的波长。 此外，调制光的相位根据输入光的波长通过相位调整电压进行控制。

公开(公告)号：US07305188B2

公开(公告)日：2007-12-04

申请号：US10893435

申请日：2004-07-19

申请人： Shinji Yamashita ,  Tsuyoshi Yamamoto

发明人： Shinji Yamashita ,  Tsuyoshi Yamamoto

IPC分类号： H04J14/02

CPC分类号： H04J14/0283 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0284 ,  H04J14/0286 ,  H04Q11/0005 ,  H04Q2011/0022 ,  H04Q2011/003 ,  H04Q2011/0032

摘要： In a WDM transmission system, a wavelength selecting switch demultiplexes a first WDM light containing a plurality of wavelength components into a plurality of single wavelength lights each containing corresponding one of the wavelength components, effects multiplexing on the plurality of single wavelength lights to form a second WDM light, and effects demultiplexing on the outputted second WDM light. A wavelength demultiplexing unit demultiplexes the demultiplexed second WDM light into a plurality of wavelength demultiplexed lights for every wavelength component so that physical quantity monitoring can be made on each wavelength demultiplexed light deriving from the demultiplexing. In this way, transmission channel switching can be independently effected on the wavelength light having a single component contained in the WDM light, wavelength demultiplexing elements provided in a spectral optical system can be shared to reduce the number of elements, and the wavelength selection switch can be assembled with ease.

摘要翻译： 在WDM传输系统中，波长选择开关将包含多个波长分量的第一WDM光解复用为多个单一波长光，每个单一波长光包含对应的一个波长分量，在多个单个波长光上实现多路复用以形成第二个 WDM光，并对输出的第二WDM光进行解复用。 波长解复用单元将解复用的第二WDM光解复用为每个波长分量的多个波长解复用光，从而可以对从解复用导出的每个波长解复用光进行物理量监视。 以这种方式，可以在具有包含在WDM光中的单个分量的波长光上独立地实现传输信道切换，可以共享在光谱系统中提供的波长解复用元件以减少元素的数量，并且波长选择开关可以 轻松组装。

公开(公告)号：US20070248134A1

公开(公告)日：2007-10-25

申请号：US11716017

申请日：2007-03-09

申请人： Nobuaki Hatori ,  Tsuyoshi Yamamoto ,  Yasuhiko Arakawa

发明人： Nobuaki Hatori ,  Tsuyoshi Yamamoto ,  Yasuhiko Arakawa

IPC分类号： H01S5/12

CPC分类号： H01S5/12 ,  B82Y20/00 ,  H01S5/0655 ,  H01S5/1064 ,  H01S5/1212 ,  H01S5/1225 ,  H01S5/1237 ,  H01S5/22 ,  H01S5/3412 ,  H01S5/34306

摘要： An optical semiconductor device includes: a waveguide structure including layers grown over a semiconductor substrate, having a width defined by sidewalls formed by etching the layers, and including a wide, a narrow, and an intermediate width portion, formed along a propagation direction; and a diffraction grating formed on the sidewalls of at least one of the wide and narrow width portions of the waveguide structure, the diffraction grating having vertical grooves periodically disposed along the propagation direction and defining a wavelength of propagation light, wherein the narrow width portion is formed in such a manner that a loss of 50% or more is given to a higher order transverse mode. An optical semiconductor device having a vertical diffraction grating is provided which can suppress generation of a higher order transverse mode and an increase in a device resistance.

摘要翻译： 一种光学半导体器件包括：波导结构，包括在半导体衬底上生长的层，其具有由蚀刻所述层形成的侧壁限定的宽度，并且包括沿传播方向形成的宽，窄和中间宽度部分; 以及衍射光栅，其形成在所述波导结构的宽和窄宽度部分中的至少一个的侧壁上，所述衍射光栅具有沿传播方向周期性地设置并且限定传播光的波长的垂直凹槽，其中窄宽度部分 形成为对高阶横模具有50％以上的损失。 提供了具有垂直衍射光栅的光学半导体器件，其可以抑制高阶横模的产生和器件电阻的增加。

公开(公告)号：US07230283B2

公开(公告)日：2007-06-12

申请号：US11138298

申请日：2005-05-27

申请人： Takasumi Ohyanagi ,  Atsuo Watanabe ,  Rajesh Kumar Malhan ,  Tsuyoshi Yamamoto ,  Toshiyuki Morishita

发明人： Takasumi Ohyanagi ,  Atsuo Watanabe ,  Rajesh Kumar Malhan ,  Tsuyoshi Yamamoto ,  Toshiyuki Morishita

IPC分类号： H01L29/74 ,  H01L31/111

CPC分类号： H01L29/66416 ,  H01L29/1608 ,  H01L29/7722 ,  H01L29/8083

摘要： A silicon carbide semiconductor device such as JFET, SIT and the like is provided for accomplishing a reduction in on-resistance and high-speed switching operations. In the JFET or SIT which turns on/off a current with a depletion layer extending in a channel between a gate region formed along trench grooves, a gate contact layer and a gate electrode, which can be supplied with voltages from the outside, are formed on one surface of a semiconductor substrate or on the bottom of the trench groove. A metal conductor (virtual gate electrode) is formed in ohmic contact with a p++ contact layer of the gate region on the bottom of the trench grooves independently of the gate electrode. The virtual gate electrode is electrically isolated from the gate electrode and an external wire.

摘要翻译： 提供诸如JFET，SIT等的碳化硅半导体器件用于实现导通电阻和高速开关操作的降低。 在JFET或SIT中，形成在沿着沟槽形成的栅极区之间的沟道中延伸的耗尽层的电流，可以从外部供应电压的栅极接触层和栅极电极 在半导体衬底的一个表面上或在沟槽槽的底部。 金属导体（虚拟栅电极）与沟槽沟槽底部的栅极区域的p ++接触层独立于栅电极形成欧姆接触。 虚拟栅电极与栅极电极和外部电线电隔离。

公开(公告)号：US07173284B2

公开(公告)日：2007-02-06

申请号：US10230115

申请日：2002-08-29

申请人： Rajesh Kumar ,  Tsuyoshi Yamamoto ,  Hiroki Nakamura

发明人： Rajesh Kumar ,  Tsuyoshi Yamamoto ,  Hiroki Nakamura

IPC分类号： H01L29/15

CPC分类号： H01L29/66068 ,  H01L29/1608 ,  H01L29/8083 ,  Y10S438/931

摘要： A silicon carbide semiconductor device that includes J-FETs has a drift layer of epitaxially grown silicon carbide having a lower impurity concentration level than a substrate on which the drift layer is formed. Trenches are formed in the surface of the drift layer, and first gate areas are formed on inner walls of the trenches. Second gate areas are formed in isolation from the first gate areas. A source area is formed on channel areas, which are located between the first and second gate areas in the drift layer. A method of manufacturing the device ensures uniform channel layer quality, which allows the device to have a normally-off characteristic, small size, and a low likelihood of defects.

摘要翻译： 包括J-FET的碳化硅半导体器件具有与形成有漂移层的衬底相比杂质浓度水平低的外延生长碳化硅的漂移层。 沟槽形成在漂移层的表面中，并且第一栅极区域形成在沟槽的内壁上。 第二栅极区域与第一栅极区域隔离形成。 源极区域形成在位于漂移层中的第一和第二栅极区域之间的沟道区域上。 制造该器件的方法确保了均匀的沟道层质量，这允许器件具有常规特性，小尺寸和低缺陷可能性。

公开(公告)号：US07164639B2

公开(公告)日：2007-01-16

申请号：US10615996

申请日：2003-07-08

申请人： Tsuyoshi Yamamoto ,  Koji Tsukagoshi ,  Hideki Osawa ,  Hiroyuki Mutou

发明人： Tsuyoshi Yamamoto ,  Koji Tsukagoshi ,  Hideki Osawa ,  Hiroyuki Mutou

IPC分类号： G11B7/095

CPC分类号： G11B7/0945 ,  G11B7/0956

摘要： A DC voltage value is obtained at least at an inside position, an intermediate position, and an outside position on a disc (1) from a drive signal that is supplied to a focusing coil (4) built into an optical pickup (2). From the DC voltage values is obtained a relationship of a position between the respective positions and the DC voltage value, and this relationship is stored into a memory circuit (12). Then, during recording or playback, the DC voltage value that is calculated on the basis of the recording or playback position of the signal at that time and the AC signal included in the drive signal that is supplied to the focusing coil (4) are added to create a signal to be supplied to a tilt adjustment coil (6).

摘要翻译： 至少在提供给内置于光学拾取器（2）中的聚焦线圈（4）的驱动信号的至少在盘（1）的内部位置，中间位置和外部位置处获得直流电压值。 从DC电压值获得各个位置之间的位置与DC电压值的关系，并且该关系被存储到存储器电路（12）中。 然后，在记录或重放期间，添加基于该时刻的信号的记录或重放位置计算出的直流电压值和提供给聚焦线圈（4）的驱动信号中包含的AC信号 以产生要提供给倾斜调节线圈（6）的信号。

公开(公告)号：US20060222290A1

公开(公告)日：2006-10-05

申请号：US11148190

申请日：2005-06-09

申请人： Shinji Yamashita ,  Tsuyoshi Yamamoto ,  Tamotsu Akashi ,  Kohei Shibata ,  Hirofumi Aota

发明人： Shinji Yamashita ,  Tsuyoshi Yamamoto ,  Tamotsu Akashi ,  Kohei Shibata ,  Hirofumi Aota

IPC分类号： G02B6/35

CPC分类号： G02B6/3586 ,  G02B6/2931 ,  G02B6/29313 ,  G02B6/3518 ,  G02B6/356 ,  G02B6/357 ,  G02B6/3588

摘要： The present invention provides an optical switch for restricting a reduction in an optical coupling efficiency to an output optical path, which comprises a first spectral unit, a second spectral unit for further spectrally diffracting a plurality of wavelength components spectrally diffracted in the first spectral unit, a plurality of movable mirrors capable of reflecting the plurality of wavelength components spectrally diffracted in the second spectral unit respectively and directing the same in different directions, and a controller for compensating for deviation angles relative to optical axes of the plurality of wavelength components spectrally diffracted in the second spectral unit through setting of angles of reflecting faces in the plurality of movable mirrors.

摘要翻译： 本发明提供了一种用于限制光耦合效率降低到输出光路的光开关，其包括第一光谱单元，用于进一步光谱衍射在第一光谱单元中频谱衍射的多个波长分量的第二光谱单元， 多个可移动反射镜，其能够分别反射在第二光谱单元中分光衍射的多个波长分量并将其引导到不同方向;以及控制器，用于补偿相对于在光谱上衍射的多个波长分量的光轴的偏离角度 所述第二光谱单元通过设置所述多个可移动反射镜中的反射面的角度。

公开(公告)号：US20060198737A1

公开(公告)日：2006-09-07

申请号：US11071029

申请日：2005-03-03

申请人： Gen Matsui ,  Teruaki Tanaka ,  Tsuyoshi Yamamoto

发明人： Gen Matsui ,  Teruaki Tanaka ,  Tsuyoshi Yamamoto

IPC分类号： F04B49/00

CPC分类号： G05B19/048 ,  G05B9/03 ,  G05B19/07 ,  G05B2219/21109 ,  G05B2219/23265 ,  G05B2219/25268 ,  G05B2219/25316

摘要： Herein disclosed is an actuator control apparatus, comprising primary control means for producing a control signal used to control an operation of an actuator in accordance with an instruction signal indicative of an operation of the actuator, secondary control means for producing a control signal in accordance with the instruction signal; and switching means for selectively switching one of the primary control means and the secondary control means to the other, and in which the secondary control means is less in the number of functions than the primary control means, and each of components constituting the secondary control means is easier in fault verification than a component constituting the primary control means the most difficult in fault verification among all of components constituting the primary control means.

摘要翻译： 这里公开了一种致动器控制装置，包括主控制装置，用于根据指示致动器的操作的指示信号产生用于控制致动器的操作的控制信号，用于根据执行器产生控制信号的二次控制装置 指令信号; 以及切换装置，用于选择性地将主控制装置和次控制装置中的一个切换到另一控制装置，并且其中次控制装置的功能数量小于主控制装置，并且构成次控制装置的每个部件 在故障验证中比构成主控制的部件更容易意味着构成主控制装置的所有部件中的故障验证中最困难。

公开(公告)号：US20060093263A1

公开(公告)日：2006-05-04

申请号：US11041435

申请日：2005-01-25

申请人： Tamotsu Akashi ,  Tsuyoshi Yamamoto ,  Shinji Yamashita ,  Kohei Shibata ,  Hirofumi Aota

发明人： Tamotsu Akashi ,  Tsuyoshi Yamamoto ,  Shinji Yamashita ,  Kohei Shibata ,  Hirofumi Aota

IPC分类号： G02B6/32

CPC分类号： G02B6/2931 ,  G02B6/29313 ,  G02B6/32 ,  G02B6/3512 ,  G02B6/3544 ,  G02B6/3554 ,  G02B6/356

摘要： A collimator array includes a substrate; a plurality of lenses formed on one face of the substrate; and a plurality of projecting parts, each of which is formed on a portion corresponding to the lens on the other face of the substrate, respectively and is fusion-connected to an optical fiber, respectively; wherein an area of the fusion-connected face of the projecting part with respect to the optical fiber is set to be larger than a cross sectional area of the optical fiber. Thereby, it is possible to provide a collimator having fewer variations in an output beam angle and a diameter of an output beam and having excellent strength, and a method for manufacturing the same.

摘要翻译： 准直器阵列包括基板; 形成在所述基板的一个面上的多个透镜; 以及分别形成在与所述基板的另一面上的所述透镜相对应的部分上的多个突出部分，并分别与光纤熔接; 其中所述突出部分的所述熔接面相对于所述光纤的面积被设定为大于所述光纤的截面面积。 由此，能够提供输出光束角度和输出光束的直径变化较小，强度优异的准直仪及其制造方法。

公开(公告)号：US07017755B1

公开(公告)日：2006-03-28

申请号：US10203634

申请日：2000-05-31

申请人： Masura Nakamura ,  Tsuyoshi Yamamoto ,  Asaaki Nishioka ,  Shigetoshi Toyooka ,  Yasufumi Matsuo ,  Shunichi Nagasaki

发明人： Masura Nakamura ,  Tsuyoshi Yamamoto ,  Asaaki Nishioka ,  Shigetoshi Toyooka ,  Yasufumi Matsuo ,  Shunichi Nagasaki

IPC分类号： B07B1/46

CPC分类号： F27D25/001 ,  F27B7/383 ,  F27D2003/0083

摘要： Rear ends of pushing rods 40 are axially connected to a support base 50, which is movably engaged with guide rails 60. A drive unit 70 is disposed to rotatably move wire belts 74 between wheels 73 and 71 at longitudinal front and rear ends of the guide rails 60, and the support base 50 is connected to the wire belts 74. The drive unit 70 is activated to guide the pushing rods 40 by the guide rails 60 so to make pushing and pulling operation of the pushing rods 40. A door 33 which is disposed at the back wall of a static grate 31 in a clinker cooler 30 is opened to fit the pushing rods 40 into a seal material 34 on the opening to push a large lump of coating C2 retained on the static grate 31. The pushing rods 40 have a double tube structure and are cooled by injecting cooling water from supply pipes 45. By configuring as described above, there is provided an advantageous apparatus for removing large lumps of coating which can remove the large lumps of coating retained in a clinker cooling section with reliability without manually working and automate the removing work, and which excels in maintenance and management.

摘要翻译： 推杆40的后端轴向连接到支撑基座50，支撑基座50可移动地与导轨60接合。 驱动单元70设置成在导轨60的纵向前端和后端处可转动地在轮73和71之间移动线带74，并且支撑基座50连接到线带74。 驱动单元70被启动以通过导轨60引导推杆40，从而推动和拉动推杆40的操作。 设置在熟料冷却器30中的静电格栅31的后壁上的门33打开，以将推杆40装配到开口上的密封材料34中，以推动保持在静电格栅上的大块涂层C 2 31。 推杆40具有双管结构，并且通过从供应管45注入冷却水来冷却。通过如上所述构造，提供了一种用于去除大块涂层的有利装置，其可以去除保留在 熟料冷却段具有可靠性，无需人工操作，自动清除工作，维护和管理擅长。