Field-effect transistor having a graded contact layer
    51.
    发明授权
    Field-effect transistor having a graded contact layer 失效
    具有渐变接触层的场效应晶体管

    公开(公告)号:US5521403A

    公开(公告)日:1996-05-28

    申请号:US417894

    申请日:1995-04-06

    CPC分类号: H01L29/8122 H01L21/28575

    摘要: A field-effect transistor includes a semi-insulating substrate, a semiconductor layer consisting of successive layers of GaAs compound semiconductor formed on the substrate, a gate electrode forming a Schottky contact with the semiconductor layer, and source and drain electrodes each forming an ohmic contact to the semiconductor layer. A semiconductor layer includes a buffer layer, an active layer, and a contact layer, where the impurity concentration in the contact layer is substantially equal to that in the active layer at the interface therewith. The impurity concentration in the contact layer increases continuously from the interface toward the upper surface of the contact layer. The field-effect transistor achieves a reduction in the ON resistance and an increase in the gate breakdown voltage at the same time, and to reduce power loss and increase efficiency.

    摘要翻译: 场效应晶体管包括半绝缘衬底,由衬底上形成的连续的GaAs化合物半导体层构成的半导体层,与半导体层形成肖特基接触的栅电极以及各自形成欧姆接触的源极和漏极 到半导体层。 半导体层包括缓冲层,有源层和接触层,其中接触层中的杂质浓度基本上等于与其界面处的有源层中的杂质浓度。 接触层中的杂质浓度从界面向接触层的上表面连续增加。 场效应晶体管同时实现导通电阻的降低和栅极击穿电压的提高,并且降低功率损耗并提高效率。

    Color image reproduction apparatus and a composite light filter and ink
ribbon for use therein
    52.
    发明授权
    Color image reproduction apparatus and a composite light filter and ink ribbon for use therein 失效
    彩色图像再现装置和用于其中的复合光滤色器和墨带

    公开(公告)号:US4835603A

    公开(公告)日:1989-05-30

    申请号:US249282

    申请日:1988-09-26

    CPC分类号: H04N1/46

    摘要: A color image reproduction apparatus includes a light source, a filter, a sensor means, an ink ribbon, a printer including a printer head and a printer drive, a feeder and a controller. The light source illuminates spots on the color original and light reflected therefrom is filtered by one of three aligned segments of the filter which are connected end-to-end in an alignment direction which three segments respectively filter different first, second and third portions of the visual spectrum. The sensor is disposed behind the filter and senses the light filtered by one of the three different filter segments when the one of the segments is disposed in front of sensor. The sensor outputs an intensity signal indicating the intensity of the sensed light. The ink ribbon is fixed in relation to the filter and has three different color ink layers which are attached to each other end-to-end in the same alignment direction as are the light filter segments. Each ink layer is spaced a predetermined distance from a corresponding one of the three different filter segments. The printer head is disposed behind the ink ribbon and is spaced from the sensor a distance equal to the distance between corresponding ink layers and filter segments so as to be operable to apply ink from the ink layers to a print surface. The feeder successively feeds the three different filter segments across the front side of the sensor, and simultaneously successively feeds the three different ink layers across the front side of the printer head.

    摘要翻译: 彩色图像再现装置包括光源,滤光器,传感器装置,墨带,包括打印头和打印机驱动器的打印机,馈线和控制器。 光源照亮彩色原稿上的光斑,反射的光被滤光片的三个对准的片段中的一个过滤,它们沿对准方向端对端连接,三个片段分别过滤不同的第一,第二和第三部分 视觉光谱。 传感器设置在过滤器后面,并且当其中一个片段设置在传感器前面时,感测由三个不同过滤器段中的一个过滤的光。 传感器输出表示感测光强度的强度信号。 墨带相对于过滤器固定,并且具有三个不同的彩色墨层,它们以与滤光片段相同的排列方向在端对端彼此附接。 每个墨层与三个不同的过滤器段中相应的一个隔开预定的距离。 打印机头设置在墨带的后面,并且与传感器间隔开等于相应油墨层和过滤器段之间距离的距离,以便可操作地将油墨从油墨层施加到打印表面。 进料器连续地将三个不同的过滤器段穿过传感器的前侧,并且同时连续地将三个不同的油墨层穿过打印头的前侧。

    Electronic print board
    53.
    发明授权
    Electronic print board 失效
    电子印刷板

    公开(公告)号:US4727431A

    公开(公告)日:1988-02-23

    申请号:US768819

    申请日:1985-08-23

    摘要: An electronic print board comprising: a recording medium formed by a flexible sheet for recording erasable recordings and/or drawings or for holding a data sheet thereon, a mechanism for moving said recording medium, a scanning system for scanning the writings and/or drawings or data carried on a data sheet secured on the recording medium and providing electric signals corresponding to the writings and/or drawings or the data, operating unit including sheet size selecting switches, an image memory for storing data corresponding to the writings and/or drawings or the data carried on a data sheet secured on the recording medium. A control circuit for controlling the scanning operation of the scanning system, reading data from the image memory and printing the data on a printing sheet, and a reading and printing unit for reading data from the image memory and printing the data read from the image memory under the control of the control circuit. The electronic print board is capable of scanning the entire area of the surface of the recording medium or only a limited area of the same corresponding to a size of sheet selected, of printing the data corresponding the entire area of the recording medium or only the data within a limited area corresponding to a size of a data sheet selected by means of one of the sheet size selecting switches, and of producing one copy or a plurality of copies of the same data.

    摘要翻译: 一种电子印刷板,包括:由用于记录可擦除记录和/或附图或用于在其上保持数据表的柔性片形成的记录介质,用于移动所述记录介质的机构,用于扫描文字和/或图纸的扫描系统, 保存在记录介质上的数据携带的数据,并提供与写入和/或附图或数据对应的电信号,包括纸张尺寸选择开关的操作单元,用于存储对应于文字和/或图纸的数据的图像存储器, 在记录介质上固定的数据表上携带的数据。 一种用于控制扫描系统的扫描操作,从图像存储器读取数据并将数据打印在打印纸上的控制电路,以及用于从图像存储器读取数据并打印从图像存储器读取的数据的读取和打印单元 在控制电路的控制下。 电子印刷板能够扫描记录介质表面的整个区域,或仅扫描与选择的片材尺寸相对应的有限区域,打印与记录介质的整个区域对应的数据,或仅打印数据 在与由片材尺寸选择开关之一选择的数据表的尺寸相对应的有限区域内,并且产生相同数据的一个副本或多个副本。

    Diffracted sound reduction device, diffracted sound reduction method, and filter coefficient determination method
    54.
    发明授权
    Diffracted sound reduction device, diffracted sound reduction method, and filter coefficient determination method 有权
    衍射衰减装置,衍射声衰减法和滤波器系数确定方法

    公开(公告)号:US09191768B2

    公开(公告)日:2015-11-17

    申请号:US13641250

    申请日:2012-02-17

    申请人: Hiroyuki Kano

    发明人: Hiroyuki Kano

    IPC分类号: H04S7/00 H04R3/12 H04R1/40

    摘要: A diffracted sound reduction device includes: a reproduction speaker that outputs reproduced sound having properties indicated by an input signal; control speakers each of which reproduces corresponding one of control signals, the diffracted sound being a part of the reproduced sound and arriving at corresponding one of the control points except the control point at the listener's position; and control filters each of which filters the input signal to generate corresponding one of the control signals. Each of the control points faces a corresponding speaker from among the reproduction speaker and the control speakers. Each of the control filters generates the corresponding one of the control signals so that a sound pressure of the diffracted sound at corresponding one of the control points is lower than a sound pressure of direct sound that is a part of the reproduced sound which arrives at the control point of the listener's position.

    摘要翻译: 衍射声衰减装置包括:再现扬声器,其输出具有由输入信号表示的特性的再现声音; 控制扬声器,每个扬声器再现对应的一个控制信号,衍射声音是再现声音的一部分,并到达除了听者位置的控制点之外的控制点的对应一个; 以及控制滤波器,每个滤波器对输入信号进行滤波以产生对应的一个控制信号。 每个控制点面对来自再现扬声器和控制扬声器之间的对应扬声器。 每个控制滤波器产生相应的一个控制信号,使得对应的一个控制点处的衍射声的声压低于作为再现声音的一部分的直接声音的声压, 听众位置的控制点。

    Spectroscopy method and spectroscope
    55.
    发明授权
    Spectroscopy method and spectroscope 有权
    光谱法和光谱仪

    公开(公告)号:US08351039B2

    公开(公告)日:2013-01-08

    申请号:US12926027

    申请日:2010-10-21

    IPC分类号: G01N21/00

    摘要: A spectroscopy method, includes guiding pulse laser light to an optical fiber, which mutually reacts with a sample to be measured of a light absorptance characteristic, outputting ring down pulse light obtained through light absorption of the sample, measuring an absorptance characteristic of the sample based on an attenuation characteristic of the ring down pulse light, and setting the pulse laser light as wide-spectrum laser light, setting the optical fiber as a strong dispersive optical fiber, and increasing a pulse width of the ring down pulse light to measure a wavelength absorptance characteristic based on a ring down attenuation constant of a pulse train with respect to a time sequence corresponding to a wavelength.

    摘要翻译: 光谱学方法包括将脉冲激光引导到与待测样品相互反应的光吸收特性的光纤,输出通过样品的光吸收获得的环形脉冲光,测量样品的吸收特性 根据环形脉冲光的衰减特性,将脉冲激光设定为宽光谱激光,将光纤设为强分散光纤,增加环形脉冲光的脉冲宽度,测定波长 基于相对于对应于波长的时间序列的脉冲序列的衰减衰减常数的吸收特性。

    Method for producing graphene
    56.
    发明授权
    Method for producing graphene 有权
    生产石墨烯的方法

    公开(公告)号:US08349142B2

    公开(公告)日:2013-01-08

    申请号:US12736268

    申请日:2009-03-23

    IPC分类号: B01J19/08

    摘要: A graphene production apparatus 100 has a vessel 10 and, attached thereto, an immersion electrode 20 and a non-immersion electrode 30. The immersion electrode has an electrode covering 20c and an electrode main body 20e, and the non-immersion electrode has a covering 30c and an electrode main body 30e. An argon-feeding conduit 40 is disposed so as to inject argon into the vessel 10 around the electrode main body 30e. Ethanol is supplied in such an amount that the liquid surface completely covers the electrode main body 20e of the immersion electrode 20 and does not reach the electrode main body 30e of the non-immersion electrode 30. The electrode main body 20e is formed from, for example, iron, nickel, or cobalt.

    摘要翻译: 石墨烯制造装置100具有容器10,并附接有浸渍电极20和非浸没电极30.浸渍电极具有电极覆盖层20c和电极主体20e,非浸渍电极具有覆盖层 30c和电极主体30e。 氩供给导管40设置成在电极主体30e的周围向容器10内注入氩。 乙醇的供给量使得液面完全覆盖浸没电极20的电极主体20e,并且不会到达非浸没电极30的电极主体30e。电极主体20e由 例如,铁,镍或钴。

    Noise control device
    58.
    发明授权
    Noise control device 有权
    噪音控制装置

    公开(公告)号:US08233633B2

    公开(公告)日:2012-07-31

    申请号:US12616978

    申请日:2009-11-12

    申请人: Hiroyuki Kano

    发明人: Hiroyuki Kano

    IPC分类号: A61F11/06 H04B15/00

    CPC分类号: H04R1/1083

    摘要: A noise control device includes a signal processor that detects a noise outputted from a noise source, and generates a control signal based on the noise and a control acoustic system that generates a control sound for canceling the noise, based on the control signal outputted from the signal processor. The noise control device also includes an output correction section that corrects the control signal outputted from the signal processor, in a frequency band for which a noise control process time τ, which is a time period from when the noise is outputted from the noise source to pass through the signal processor and the control acoustic system to when the control sound reaches the control point, is larger than a noise transfer time T, which is a time period from when the noise is outputted from the noise source to when the noise reaches the control point via the noise transfer system (τ>T).

    摘要翻译: 噪声控制装置包括信号处理器,其检测从噪声源输出的噪声,并且基于噪声产生控制信号,以及控制声音系统,其基于从所述噪声源输出的控制信号产生用于消除噪声的控制声音 信号处理器。 噪声控制装置还包括:输出校正部,其对从信号处理部输出的控制信号进行校正,该频带是噪声控制处理时间τ,其是从噪声从噪声源输出到噪声源的时间段 通过信号处理器和控制声学系统,当控制声音到达控制点时,大于噪声传送时间T,噪声传送时间T是从噪声从噪声源输出到噪声到达噪声时的时间段 通过噪声传输系统(τ> T)控制点。

    Fuel cell structure and method of manufacturing same
    59.
    发明授权
    Fuel cell structure and method of manufacturing same 有权
    燃料电池结构及其制造方法

    公开(公告)号:US08110248B2

    公开(公告)日:2012-02-07

    申请号:US11884234

    申请日:2006-02-14

    IPC分类号: H01M4/96

    摘要: A fuel cell structure comprises a diffusion layer and/or a catalyst layer which are made of a carbonaceous porous material having a nano-size structure, such as carbon nanowall (CNW). A method of manufacturing the structure is also disclosed. The structure and method simplify the process of manufacturing a fuel cell electrode comprised of an electrode catalyst layer and a gas diffusion layer. The electrical conductivity of the catalyst layer is increased and the diffusion efficiency of the diffusion layer is improved, whereby the electricity generation efficiency of the fuel cell can be improved.

    摘要翻译: 燃料电池结构包括由具有纳米尺寸结构的碳质多孔材料(例如碳纳米壁(CNW))制成的扩散层和/或催化剂层。 还公开了一种制造该结构的方法。 该结构和方法简化了制造由电极催化剂层和气体扩散层组成的燃料电池电极的工艺。 催化剂层的导电性提高,扩散层的扩散效率提高,能够提高燃料电池的发电效率。

    METHOD FOR PRODUCING GRAPHENE
    60.
    发明申请
    METHOD FOR PRODUCING GRAPHENE 有权
    生产石墨的方法

    公开(公告)号:US20110114499A1

    公开(公告)日:2011-05-19

    申请号:US12736268

    申请日:2009-03-23

    IPC分类号: C01B31/00 C25B1/00 B82Y40/00

    摘要: To provide a simple process for producing graphene.A graphene production apparatus 100 has a vessel 10 and, attached thereto, an immersion electrode 20 and a non-immersion electrode 30. The immersion electrode has an electrode covering 20c and an electrode main body 20e, and the non-immersion electrode has a covering 30c and an electrode main body 30e. An argon-feeding conduit 40 is disposed so as to inject argon into the vessel 10 around the electrode main body 30e. Ethanol is supplied in such an amount that the liquid surface completely covers the electrode main body 20e of the immersion electrode 20 and does not reach the electrode main body 30e of the non-immersion electrode 30. The electrode main body 20e is formed from, for example, iron, nickel, or cobalt. Thus, a 60-Hz AC voltage is applied to the electrode main body 20e immersed in the liquid; i.e., below the ethanol surface, and to the electrode main body 30e located above the liquid, while argon gas is supplied through the argon-feeding conduit 40. As a result, a gas-liquid plasma generates, to thereby induce decomposition of ethanol, etc., whereby graphene is yielded. The graphene disperses in ethanol.

    摘要翻译: 提供生产石墨烯的简单工艺。 石墨烯制造装置100具有容器10,并附接有浸渍电极20和非浸没电极30.浸渍电极具有电极覆盖层20c和电极主体20e,非浸渍电极具有覆盖层 30c和电极主体30e。 氩供给导管40设置成在电极主体30e的周围向容器10内注入氩。 乙醇的供给量使得液面完全覆盖浸没电极20的电极主体20e,并且不会到达非浸没电极30的电极主体30e。电极主体20e由 例如,铁,镍或钴。 因此,向浸没在液体中的电极主体20e施加60Hz的交流电压, 即位于乙醇表面以下的电极主体30e和位于液体上方的电极主体30e,同时通过氩供给导管40供给氩气。结果,产生气液等离子体,从而导致乙醇分解, 等等,由此产生石墨烯。 石墨烯分散在乙醇中。