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    • 2. 发明授权
    • SAW antenna duplexer having a phase shifter with less than 50 ohm characteristic impedance
    • SAW天线双工器具有具有小于50欧姆特性阻抗的移相器
    • US06714098B2
    • 2004-03-30
    • US09914263
    • 2001-10-19
    • Kazushi NishidaKatsuya FujiiIchiro KameyamaToru SakuragawaHiroshi Fujinaka
    • Kazushi NishidaKatsuya FujiiIchiro KameyamaToru SakuragawaHiroshi Fujinaka
    • H03H972
    • H04B1/52H03H9/0576H03H9/72H03H9/725
    • An antenna duplexer capable of optimally decreasing the insertion loss and the voltage standing wave ratio (VSWR) at a center frequency and its vicinity in the pass band in transmitter-band of the device. The output port of transmitter surface-acoustic-wave (SAW) filter (11) is electrically connected with phase shift circuit (13), to which receiver SAW filter (12) is also electrically connected. The transmitter and receiver SAW filters have different pass bands and attenuate the other pass band with each other. Phase shift circuit (13) shifts the phase of receiver SAW filter (12) in the transmitter-band. In addition, phase shift circuit (13) has the characteristic impedance in which the magnitude of the reflection coefficient at the center frequency in the transmitter-band of receiver SAW filter (12) is to be not less than 0.8 and the phase angle of reflection coefficient at the center frequency in the transmitter-band of receiver SAW filter (12) takes the range from 0° to 45°.
    • 一种天线双工器,其能够最佳地降低设备的发射机频带中的中心频率及其附近的插入损耗和电压驻波比(VSWR)。 发射器表面声波(SAW)滤波器(11)的输出端口与相移电路(13)电连接,接收器SAW滤波器(12)也电连接到该相移电路。 发射器和接收器SAW滤波器具有不同的通带,并使另一个通带衰减。 相移电路(13)使接收器SAW滤波器(12)的相位在发射机频带中移位。 此外,相移电路(13)具有特征阻抗,其中接收机SAW滤波器(12)的发射机频带中的中心频率处的反射系数的大小不得小于0.8,反射相位角 接收机SAW滤波器(12)的发射机频带中心频率处的系数取0°至45°的范围。
    • 3. 发明申请
    • ANTENNA SHARING DEVICE
    • 天线共享设备
    • US20090058557A1
    • 2009-03-05
    • US11911845
    • 2006-04-20
    • Tetsuya TsurunariKatsuya Fujii
    • Tetsuya TsurunariKatsuya Fujii
    • H03H9/72
    • H03H9/725H03H9/0576H03H9/72
    • An antenna duplexer includes a piezoelectric substrate having a surface, a grounding terminal to be grounded, first and second surface acoustic wave (SAW) filters mounted on the piezoelectric substrate, first and second terminals connected to the first and second SAW filters, respectively, and a line mounted on the surface of the piezoelectric substrate between the first SAW filter and the second SAW filter. A stray coupling path is produced between the first and second terminals. A first end of the line is connected to the grounding terminal. A second end of the line opens and is coupled capacitively to the stray coupling path. The antenna duplexer has large isolation characteristic between the surface acoustic wave filters.
    • 一种天线双工器包括具有表面的压电基片,待接地的接地端子,安装在压电基片上的第一和第二声表面波(SAW)滤波器,分别连接到第一和第二SAW滤波器的第一和第二端子,以及 安装在第一SAW滤波器和第二SAW滤波器之间的压电基板的表面上的线。 在第一和第二端子之间产生杂散耦合路径。 线路的第一端连接到接地端子。 线的第二端打开并且电容耦合到杂散耦合路径。 天线双工器在表面声波滤波器之间具有很大的隔离特性。
    • 4. 发明授权
    • Antenna sharing device
    • 天线共享装置
    • US07733196B2
    • 2010-06-08
    • US11911845
    • 2006-04-20
    • Tetsuya TsurunariKatsuya Fujii
    • Tetsuya TsurunariKatsuya Fujii
    • H03H9/72
    • H03H9/725H03H9/0576H03H9/72
    • An antenna duplexer includes a piezoelectric substrate having a surface, a grounding terminal to be grounded, first and second surface acoustic wave (SAW) filters mounted on the piezoelectric substrate, first and second terminals connected to the first and second SAW filters, respectively, and a line mounted on the surface of the piezoelectric substrate between the first SAW filter and the second SAW filter. A stray coupling path is produced between the first and second terminals. A first end of the line is connected to the grounding terminal. A second end of the line opens and is coupled capacitively to the stray coupling path. The antenna duplexer has a large isolation characteristic between the surface acoustic wave filters.
    • 一种天线双工器包括具有表面的压电基片,待接地的接地端子,安装在压电基片上的第一和第二声表面波(SAW)滤波器,分别连接到第一和第二SAW滤波器的第一和第二端子,以及 安装在第一SAW滤波器和第二SAW滤波器之间的压电基板的表面上的线。 在第一和第二端子之间产生杂散耦合路径。 线路的第一端连接到接地端子。 线的第二端打开并且电容耦合到杂散耦合路径。 天线双工器在表面声波滤波器之间具有很大的隔离特性。
    • 7. 发明申请
    • PROCESS FOR PRODUCING FIBER AND METHOD FOR PRODUCING CATALYST LAYER
    • 生产纤维的方法和生产催化层的方法
    • US20100096769A1
    • 2010-04-22
    • US12578693
    • 2009-10-14
    • Ichiro TERADASeigo KoteraKatsuya FujiiHiroyuki WatabeHiroshi UyamaChie Matsubara
    • Ichiro TERADASeigo KoteraKatsuya FujiiHiroyuki WatabeHiroshi UyamaChie Matsubara
    • D01F1/09
    • D01F1/09D01D5/04D01D5/14D01F6/32D01F8/10H01M4/8803H01M2008/1095
    • To provide a process whereby an ultrafine fiber of a fluorinated ion exchange resin can be produced easily at low cost, and a method whereby a catalyst layer having a high gas diffusion property can be produced easily at low cost.A process for producing a fiber by spinning a spinning solution containing a fluorinated ion exchange resin and a solvent by a dry spinning method, or producing an electrically conductive composite fiber by spinning n types (where n is an integer of at least 2) of spinning solutions, of which at least one type contains a fluorinated ion exchange resin and a solvent, and at least one type contains an electrically conductive material and a solvent, simultaneously by a dry spinning method, wherein the spinning solution which is being spun by the dry spinning method, is stretched by a gas stream; and a method for producing a catalyst layer, which comprises accumulating the fiber produced by such a process to form a non-woven fabric thereby to obtain a catalyst layer having the non-woven fabric.
    • 为了提供能够以低成本容易地制造氟化离子交换树脂的超细纤维的方法,并且可以以低成本容易地制造具有高气体扩散性的催化剂层的方法。 通过纺丝含有氟离子交换树脂和溶剂的纺丝溶液的纺丝方法制造纤维的方法,或通过旋转纺丝的n种(其中n为至少2的整数)来制造导电性复合纤维的方法 溶液,其中至少一种包含氟化离子交换树脂和溶剂,并且至少一种类型包含导电材料和溶剂,同时通过干法纺丝法,其中由干燥纺丝的纺丝溶液 纺丝方法,被气流拉伸; 以及制造催化剂层的方法,其包括将通过这种方法生产的纤维聚集以形成无纺布,从而获得具有无纺布的催化剂层。
    • 10. 发明授权
    • Process for producing fiber and method for producing catalyst layer
    • 生产纤维的方法和催化剂层的制备方法
    • US08147745B2
    • 2012-04-03
    • US12578693
    • 2009-10-14
    • Ichiro TeradaSeigo KoteraKatsuya FujiiHiroyuki WatabeHiroshi UyamaChie Matsubara
    • Ichiro TeradaSeigo KoteraKatsuya FujiiHiroyuki WatabeHiroshi UyamaChie Matsubara
    • D01D5/04D01D5/12D01F1/09D01F6/12D04H3/02
    • D01F1/09D01D5/04D01D5/14D01F6/32D01F8/10H01M4/8803H01M2008/1095
    • To provide a process whereby an ultrafine fiber of a fluorinated ion exchange resin can be produced easily at low cost, and a method whereby a catalyst layer having a high gas diffusion property can be produced easily at low cost.A process for producing a fiber by spinning a spinning solution containing a fluorinated ion exchange resin and a solvent by a dry spinning method, or producing an electrically conductive composite fiber by spinning n types (where n is an integer of at least 2) of spinning solutions, of which at least one type contains a fluorinated ion exchange resin and a solvent, and at least one type contains an electrically conductive material and a solvent, simultaneously by a dry spinning method, wherein the spinning solution which is being spun by the dry spinning method, is stretched by a gas stream; and a method for producing a catalyst layer, which comprises accumulating the fiber produced by such a process to form a non-woven fabric thereby to obtain a catalyst layer having the non-woven fabric.
    • 为了提供能够以低成本容易地制造氟化离子交换树脂的超细纤维的方法,并且可以以低成本容易地制造具有高气体扩散性的催化剂层的方法。 通过纺丝含有氟离子交换树脂和溶剂的纺丝溶液的纺丝方法制造纤维的方法,或通过旋转纺丝的n种(其中n为至少2的整数)来制造导电性复合纤维的方法 溶液,其中至少一种包含氟化离子交换树脂和溶剂,并且至少一种类型包含导电材料和溶剂,同时通过干法纺丝法,其中由干燥纺丝的纺丝溶液 纺丝方法,被气流拉伸; 以及制造催化剂层的方法,其包括将通过这种方法生产的纤维聚集以形成无纺布,从而获得具有无纺布的催化剂层。