利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

48 条记录 (耗时 0.038 秒)

    Two-frequency impedance matching circuit for an antenna
    1.
    发明授权
    Two-frequency impedance matching circuit for an antenna 失效
    用于天线的双频阻抗匹配电路

    公开(公告)号：US5493311A

    公开(公告)日：1996-02-20

    申请号：US202495

    申请日：1994-02-28

    申请人： Ryoh Itoh ,  Yukio Yokoyama ,  Takao Ono

    发明人： Ryoh Itoh ,  Yukio Yokoyama ,  Takao Ono

    IPC分类号： H01Q5/00 ,  H03H7/38 ,  H04B1/18 ,  H01Q1/50

    CPC分类号： H04B1/18 ,  H01Q5/335 ,  H03H7/38

    摘要： In order to achieve two-way communications at two different frequencies, an impedance matching circuit is coupled to an antenna. The circuit includes a first inductor which is directly coupled to the antenna. The first inductor induces antenna input impedance to be capacitive at a first resonant frequency and induces the antenna input impedance to be inductive at a second resonant frequency. The first resonant frequency is lower than the second resonant frequency. Further, a first capacitor is coupled to the first inductor. By providing the first capacitor, a reactance component at the first resonant frequency is rendered substantially equal to a reactance component at the second resonant frequency. Further, the circuit includes a second inductor and a second capacitor which are coupled between the second means and a feeder. The combination of the second inductor and the second capacitor is provided to adjust impedance, defined by the antenna and the first inductor and the first capacitor, to characteristic impedance of the feeder at the first and second resonant frequencies.

    摘要翻译： 为了实现两个不同频率的双向通信，阻抗匹配电路耦合到天线。 电路包括直接耦合到天线的第一电感器。 第一电感器将天线输入阻抗在第一谐振频率处感应为电容，并且在第二谐振频率下引起天线输入阻抗为电感性。 第一谐振频率低于第二谐振频率。 此外，第一电容器耦合到第一电感器。 通过提供第一电容器，第一谐振频率处的电抗分量基本上等于第二共振频率处的电抗分量。 此外，电路包括耦合在第二装置和馈电器之间的第二电感器和第二电容器。 提供第二电感器和第二电容器的组合以将由天线和第一电感器和第一电容器限定的阻抗调整到在第一和第二谐振频率处的馈线的特征阻抗。

    Antenna for a radio communication apparatus
    2.
    发明授权
    Antenna for a radio communication apparatus 失效
    天线用于无线电通信装置

    公开(公告)号：US5438339A

    公开(公告)日：1995-08-01

    申请号：US201338

    申请日：1994-02-24

    申请人： Ryoh Itoh ,  Yukio Yokoyama ,  Takao Ono

    发明人： Ryoh Itoh ,  Yukio Yokoyama ,  Takao Ono

    IPC分类号： H01Q1/10 ,  H01Q1/24 ,  H01Q1/36 ,  H01Q9/36

    CPC分类号： H01Q1/10 ,  H01Q1/243

    摘要： A miniature and high performance antenna applicable to a radio communication apparatus and made up of a straight antenna rod and an antenna coil or coil element. A first whip antenna has a first portion retractable into the casing of the apparatus and a second portion constantly positioned externally of the casing. A second whip antenna has a coil element in the form of a loading coil having a predetermined number of turns. The second whip antenna is coaxially provided on the upper end of the first whip antenna and slidable relative to and in the axial direction of the first whip antenna. The second portion of the first whip antenna is movable between a position where one end of the coil element is disengaged from one end of the second portion and a position where the former is engaged with the latter. The antenna exhibits a desirable electric characteristic when pulled out of the casing of the apparatus and, in addition, promotes the efficient use of the limited space available in the casing.

    摘要翻译： 适用于无线电通信设备并由直的天线杆和天线线圈或线圈元件组成的微型和高性能天线。 第一鞭状天线具有可伸缩到装置的壳体中的第一部分和恒定地位于壳体外部的第二部分。 第二鞭状天线具有具有预定匝数的加载线圈形式的线圈元件。 第二鞭状天线同轴地设置在第一鞭状天线的上端，并且可以相对于第一鞭状天线的轴向方向滑动。 第一鞭状天线的第二部分可以在线圈元件的一端与第二部分的一端分离的位置与前者与后者接合的位置之间移动。 当从设备的外壳拉出时，天线呈现出期望的电特性，并且还促进了有效利用壳体中可用的有限空间。

    Mobile radio communication apparatus
    3.
    发明授权
    Mobile radio communication apparatus 失效
    移动无线电通信设备

    公开(公告)号：US5148181A

    公开(公告)日：1992-09-15

    申请号：US624599

    申请日：1990-12-10

    申请人： Yukio Yokoyama ,  Takao Ono

    发明人： Yukio Yokoyama ,  Takao Ono

    IPC分类号： H01Q13/08 ,  H01Q1/24 ,  H01Q9/04 ,  H01Q9/36 ,  H01Q9/42 ,  H04B1/38 ,  H04Q7/32

    CPC分类号： H01Q9/0421 ,  H01Q1/243 ,  H01Q9/42

    摘要： A mobile radio communication apparatus with an improved antenna for promoting easy manual operations, insuring desirable acoustic characteristics, and preventing the antenna gain from being lowered by user's head or hand during communication. An antenna is mounted on the upper surface of a casing and made up of a rectangular first conductive plate parallel to and spaced apart from the upper surface by a predetermined distance and having a length L.sub.1, a rectangular second conductive plate extending perpendicularly from the first conductive plate and having a height H.sub.2, and a rectangular third conductive plate extending perpendicularly from the second conductive plate and in parallel to the first conductive plate. A short-circuiting plate extending perpendicularly from one side of the first conductive plate by a height H.sub.1 and has a length M as measured in a direction parallel to the length L.sub.1. The short-circuiting plate has the end thereof connected and affixed to the upper end of a particular surface of the casing where the earpiece, mouthpiece and operation secton are arranged. The height H.sub.1 of the short-circuiting plate is greater than said height H.sub.2 of the second conductive plate, while the length M of the short-circuiting plate is equal to or smaller than the length L.sub.1 of the first conductive plate.

    摘要翻译： 一种具有改进的天线的移动无线电通信装置，用于促进便于手动操作，确保期望的声学特性，并且防止在通信期间用户的头部或手部降低天线增益。 天线安装在壳体的上表面上，由平行于上表面并与之隔开预定距离的矩形第一导电板构成，并具有长度L1，从第一导电层垂直延伸的矩形第二导电板 并且具有高度H2，以及从第二导电板垂直延伸并平行于第一导电板的矩形第三导电板。 从第一导电板的一侧垂直地延伸高度H1的短路板，并且具有沿与长度L1平行的方向测量的长度M. 短路板的端部连接并固定到壳体的特定表面的上端，其中耳机，接口管和操作构造被布置。 短路板的高度H1大于第二导电板的高度H2，而短路板的长度M等于或小于第一导电板的长度L1。

    Piezoelectric actuator and electronic apparatus
    4.
    发明授权
    Piezoelectric actuator and electronic apparatus 有权
    压电致动器和电子设备

    公开(公告)号：US08148876B2

    公开(公告)日：2012-04-03

    申请号：US12522850

    申请日：2008-01-09

    申请人： Yasuharu Onishi ,  Yasuhiro Sasaki ,  Masatake Takahashi ,  Ukyo Mori ,  Yukio Murata ,  Nozomi Toki ,  Yukio Yokoyama

    发明人： Yasuharu Onishi ,  Yasuhiro Sasaki ,  Masatake Takahashi ,  Ukyo Mori ,  Yukio Murata ,  Nozomi Toki ,  Yukio Yokoyama

    IPC分类号： H01L41/09

    CPC分类号： H04R17/00 ,  B06B1/0651 ,  H01L41/0475 ,  H01L41/0833 ,  H01L41/0973 ,  H04R2499/11 ,  H04R2499/15

    摘要： Piezoelectric actuator (51) includes a piezoelectric element (11) that performs expansion/contraction movement in accordance with the state of an electrical field, a base (21) with the piezoelectric element (11) adhered to one surface thereof, and a support member (46) for supporting the piezoelectric element (11) and the base (21), the piezoelectric element (11) and base (21) vibrating up and down in accordance with the expansion/contraction movement of the piezoelectric element (11). The base (21) is connected to the support member (46) by way of a vibration film (31) having less rigidity than the base (21). In addition, the piezoelectric element (11) and support member (46) have different outline shapes.

    摘要翻译： 压电致动器（51）包括根据电场的状态进行膨胀/收缩运动的压电元件（11），压电元件（11）粘附在其一个表面上的基座（21）和支撑构件 （11）和所述基座（21）支撑的压电元件（46），所述压电元件（11）和基座（21）根据所述压电元件（11）的伸缩运动而上下振动。 基座21通过具有比基座21的刚性低的振动膜31与支撑部件46连接。 此外，压电元件（11）和支撑构件（46）具有不同的轮廓形状。

    Image forming apparatus with setting of an operating condition of at least one image heating device
    5.
    发明授权
    Image forming apparatus with setting of an operating condition of at least one image heating device 有权
    图像形成装置，其具有设置至少一个图像加热装置的操作条件

    公开(公告)号：US07412182B2

    公开(公告)日：2008-08-12

    申请号：US12014315

    申请日：2008-01-15

    申请人： Yasuhiro Hayashi ,  Hiroto Nishihara ,  Naoto Watanabe ,  Yukio Yokoyama ,  Takako Hanada ,  Kuniyasu Kimura

    发明人： Yasuhiro Hayashi ,  Hiroto Nishihara ,  Naoto Watanabe ,  Yukio Yokoyama ,  Takako Hanada ,  Kuniyasu Kimura

    IPC分类号： G03G15/20

    CPC分类号： B41J11/002 ,  G03G15/2046 ,  G03G15/5004 ,  G03G2215/00742 ,  G03G2215/0081 ,  G03G2215/00924 ,  G03G2215/2006

    摘要： An image forming system has an image forming device, a first image heating device for heating a toner image at a first nip to maintain a target temperature, a second image heating device for heating a toner image at a second nip to maintain a target temperature, a selecting device for selecting a first image forming mode in which only the first image heating device is used for a image heating process and a second image forming mode in which the first image heating device and the second image heating device are used for the image heating process, and a delaying device for making timing at which the target temperature of the first image heating device is lowered in a stand by state later than a timing at which the target temperature of the second image heating device is lowered in the stand by state.

    摘要翻译： 图像形成系统具有图像形成装置，用于在第一压区加热调色剂图像以维持目标温度的第一图像加热装置，用于在第二压区加热调色剂图像以维持目标温度的第二图像加热装置， 选择装置，用于选择其中仅使用第一图像加热装置用于图像加热处理的第一图像形成模式和其中第一图像加热装置和第二图像加热装置用于图像加热的第二图像形成模式 处理以及延迟装置，用于使得第一图像加热装置的目标温度在待机状态下比第二图像加热装置的目标温度降低的时间晚的待机状态下降的定时。

    IMAGE FORMING APPARATUS AND GLOSS LEVEL CONTROL METHOD
    6.
    发明申请
    IMAGE FORMING APPARATUS AND GLOSS LEVEL CONTROL METHOD 失效
    图像形成装置和GLOSS电平控制方法

    公开(公告)号：US20070071474A1

    公开(公告)日：2007-03-29

    申请号：US11468120

    申请日：2006-08-29

    申请人： Naoto Watanabe ,  Takako Hanada ,  Kuniyasu Kimura ,  Hiroto Nishihara ,  Yukio Yokoyama

    发明人： Naoto Watanabe ,  Takako Hanada ,  Kuniyasu Kimura ,  Hiroto Nishihara ,  Yukio Yokoyama

    IPC分类号： G03G15/20

    CPC分类号： G03G15/5025 ,  G03G15/2039

    摘要： An image forming apparatus which can facilitate acquisition of an image output bundle that has a uniform and optimal gloss level as a whole. An image forming apparatus 10 fixes a toner image on a plurality of sheets. An image ratio calculation unit 233 calculates a composition ratio of image types in a plurality of pages of image data. A gloss level control unit 250 provides a control for uniformly fixing toner images formed on the plurality of pages to the plurality of sheet based on the calculation result by the image ratio calculation unit 233.

    摘要翻译： 一种图像形成装置，其可以有助于获取整体上具有均匀和最佳光泽度水平的图像输出束。 图像形成装置10将调色剂图像固定在多个片材上。 图像比率计算单元233计算多页图像数据中的图像类型的组成比。 光泽度控制单元250基于图像比率计算单元233的计算结果，提供用于将形成在多页上的调色剂图像均匀地定位到多个片材的控制。

    Resin-formed substrate and resin-formed substrate unit
    7.
    发明授权
    Resin-formed substrate and resin-formed substrate unit 失效
    树脂成形基板和树脂成形基板单元

    公开(公告)号：US06730854B2

    公开(公告)日：2004-05-04

    申请号：US10270643

    申请日：2002-10-16

    申请人： Yukio Yokoyama

    发明人： Yukio Yokoyama

    IPC分类号： H05K704

    CPC分类号： H05K3/202 ,  H05K1/0271 ,  H05K1/0284 ,  H05K3/301 ,  H05K3/3447 ,  H05K3/3468 ,  H05K2201/09045 ,  H05K2201/09118 ,  H05K2201/1003 ,  H05K2201/10053 ,  H05K2201/10454 ,  H05K2201/2009 ,  H05K2201/2036

    摘要： A resin-formed substrate is provided which has a component side for mounting an electronic component thereon, and a solder side for soldering thereto a lead extending from the electronic component, which is the reverse to the component side, the resin-formed substrate comprising a metal frame forming an electronic circuit pattern; and a resin covering the metal frame, the resin having an aperture formed therein, for exposing a portion of the metal frame, wherein the portion of the metal frame exposed through the aperture serves as an electrode portion for mounting of the electronic component, wherein the resin has a rib integrally formed on the component side, thereby suppressing warp of the resin-formed substrate due to a temperature difference made between a component side and a solder side during soldering.

    摘要翻译： 提供一种树脂成形基板，其具有用于在其上安装电子部件的部件侧，以及用于焊接从与部件侧相反的电子部件延伸的引线的焊料侧，所述树脂形成基板包括 金属框架形成电子电路图案; 以及覆盖金属框架的树脂，其中形成有孔的树脂用于暴露金属框架的一部分，其中通过孔露出的金属框架的部分用作用于安装电子部件的电极部分，其中， 树脂具有在部件侧一体形成的肋，从而由于在焊接期间由于部件侧和焊料侧之间的温差而抑制树脂成形基板的翘曲。

    Process for preparing 2-phenyl-3-naphthylpropionic acid derivatives
    8.
    发明授权
    Process for preparing 2-phenyl-3-naphthylpropionic acid derivatives 失效
    2-苯基-3-萘基丙酸衍生物的制备方法

    公开(公告)号：US06337405B1

    公开(公告)日：2002-01-08

    申请号：US09742348

    申请日：2000-12-22

    申请人： Yukio Yokoyama ,  Tatsuya Kobayashi ,  Takeo Koyama

    发明人： Yukio Yokoyama ,  Tatsuya Kobayashi ,  Takeo Koyama

    IPC分类号： C07D20708

    CPC分类号： C07C255/50 ,  C07C253/30 ,  C07D207/12 ,  Y02P20/55 ,  C07C255/52

    摘要： A process for preparing a compound represented by general formulae (5) and (6) in the following reaction scheme or salts thereof, wherein R1 represents a protective group for a nitrogen atom; R2 represents a methanesulfonyl group or p-toluenesulfonyl group; R3 represents a hydrogen atom, an aralkyl group, or an alkyl group having 1 to 6 carbon atoms; and X represents a halogen atom. Reaction Scheme: The above process is useful as an industrial process for preparing intermediates of anticoagulant aromatic amidine derivatives described in Japanese Patent Application Laid-Open (kokai) No. 208946/1993.

    摘要翻译： 在下列反应方案中制备由通式（5）和（6）表示的化合物或其盐的方法，其中R 1表示氮原子的保护基; R2表示甲磺酰基或对甲苯磺酰基; R3表示氢原子，芳烷基或碳原子数1〜6的烷基。 X表示卤素原子。 反应方案：上述方法可用作制备日本专利申请公开（kokai）208946/1993中所述的抗凝血芳香族脒衍生物的中间体的工业方法。