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    • 3. 发明申请
    • Dielectric Waveguide Filter
    • 介质波导滤波器
    • US20120229233A1
    • 2012-09-13
    • US13418040
    • 2012-03-12
    • Kazuhiro ITO
    • Kazuhiro ITO
    • H01P1/20H01P3/16
    • H01P1/2084H01P1/2002H01P1/2088H01P7/10
    • [OBJECT]It is an object to provide a dielectric waveguide filter with attenuation poles, which is capable of suppressing deterioration in a high band-side attenuation characteristic with respect to a low band-side attenuation characteristic.[SOLUTION]A dielectric waveguide filter comprises a plurality of dielectric waveguide resonators each having a rectangular parallelepiped-shaped dielectric block, periphery of which is covered by a conductor film. The dielectric waveguide resonators are configured to form a main coupling path, and a sub coupling path bypassing a part of the main coupling path. The part of the main coupling path bypassed by the sub coupling path includes at least one capacitive coupling path.
    • 本发明的目的是提供一种具有衰减极的介质波导滤波器,其能够抑制相对于低频带侧衰减特性的高频带侧衰减特性的劣化。 [解决方案]电介质波导滤波器包括多个介质波导谐振器,每个介质波导谐振器都具有一个长方体形状的介电块,其周边由导体膜覆盖。 电介质波导谐振器被配置为形成主耦合路径和旁路主耦合路径的一部分的子耦合路径。 由副耦合路径旁路的主耦合路径的部分包括至少一个电容耦合路径。
    • 5. 发明授权
    • Process for producing an oxide
    • 氧化物的制造方法
    • US08173085B2
    • 2012-05-08
    • US13080769
    • 2011-04-06
    • Kazuhiro ItoSatoru WatanabeKazunari WatanabeSetsuro Ito
    • Kazuhiro ItoSatoru WatanabeKazunari WatanabeSetsuro Ito
    • C01F7/00
    • C01F7/164C01P2004/61C01P2006/40
    • The present invention relates to a method for producing an oxide containing a conductive mayenite type compound and having an electron concentration of 1×1018/cm3 or more, from a raw material which is a combination of a calcium compound and an aluminum compound or is a compound containing calcium and aluminum, each having a molar ratio of calcium oxide and aluminum oxide ranging from 9:10 to 14:5 in terms of the oxides, the method including the steps of: heating and holding the raw material at 900 to 1,300° C. to produce a calcined powder containing at least one oxide selected from the group consisting of a calcium aluminate, calcium oxide and aluminum oxide; and heating and holding the calcined powder at 1,200° C. to less than 1,415° C. under a reduction atmosphere in an inert gas atmosphere or a vacuum atmosphere each having an oxygen partial pressure of 1,000 Pa or less.
    • 本发明涉及由钙化合物和铝化合物的组合的原料生成含有导电性钙铝石型化合物的氧化物的电子浓度为1×1018 / cm3以上的氧化物的方法, 包含钙和铝的化合物,其氧化物和氧化铝的摩尔比为9:10至14:5,氧化物的方法包括以下步骤:将原料加热至900至1300℃ 以制备含有选自铝酸钙,氧化钙和氧化铝中的至少一种氧化物的煅烧粉末; 在惰性气体气氛或氧气分压为1000Pa以下的真空气氛中,在还原气氛下,将煅烧后的粉末在1,200℃加热保持至小于1415℃。
    • 6. 发明申请
    • Dielectric Waveguide Slot Antenna
    • 介质波导插槽天线
    • US20120068900A1
    • 2012-03-22
    • US13236236
    • 2011-09-19
    • Yukikazu YATABEKazuhiro Ito
    • Yukikazu YATABEKazuhiro Ito
    • H01Q13/18
    • H01Q13/10
    • A dielectric waveguide slot antenna which is capable of radiating a circularly-polarized wave comprises: a dielectric waveguide having a slot through which a dielectric is exposed in a part of an electrically conductive film formed on a surface of the dielectric waveguide; a printed circuit board having a via hole opposed to the slot with the same shape as that of the slot; and a conductor plate having a first through-hole opposed to and having approximately the same shape as the via hole, and a pair of second through-holes in a vicinity of the first through-hole. The dielectric waveguide, the printed circuit board and the conductor plate are joined together with aligning the slot, the via hole and the first through-hole with each other. The printed circuit board has a conductor layer formed in positions facing to the second through-holes, and the second through-holes are arranged point-symmetrically with each other.
    • 能够辐射圆偏振波的电介质波导缝隙天线包括:介质波导,其具有槽,电介质在形成在介质波导的表面上的导电膜的一部分中暴露出来; 印刷电路板,其具有与所述狭槽相同形状的所述狭槽相对的通孔; 以及具有与通孔相对且具有大致相同形状的第一通孔的导体板和在第一通孔附近的一对第二通孔。 电介质波导,印刷电路板和导体板通过使槽,通孔和第一通孔彼此对准而接合在一起。 印刷电路板具有形成在面向第二通孔的位置的导体层,并且第二通孔彼此对称地布置。
    • 7. 发明授权
    • Wavelength tunable laser apparatus and wavelength control method
    • 波长可调谐激光装置及波长控制方法
    • US07733933B2
    • 2010-06-08
    • US11833271
    • 2007-08-03
    • Hideo ArimotoKazuhiro ItoHiroyasu Sasaki
    • Hideo ArimotoKazuhiro ItoHiroyasu Sasaki
    • H01S3/00
    • H01S5/146H01S5/06255
    • Included are: a gain chip having a gain unit and a phase control region; a current supply for causing a positive current to flow to the phase control region; a voltage supply for applying a bias voltage to the phase control region; and a control unit for selectively driving the current supply or the voltage supply depending on a direction of the wavelength shift. The control unit drives the current supply when a laser wavelength is to be shifted to a shorter wavelength side from a wavelength with the current supply and the voltage supply being turned off, and drives the voltage supply when the laser wavelength is to be shifted to a longer wavelength side from a wavelength with the current supply and the voltage supply being turned off.
    • 包括:具有增益单元和相位控制区域的增益芯片; 用于使正电流流向相位控制区域的电流源; 用于向相位控制区域施加偏置电压的电压源; 以及控制单元,用于根据波长偏移的方向选择性地驱动电流源或电压源。 当激光波长从电流供应和电压供应关闭的波长移动到较短波长侧时,控制单元驱动电流源,并且当激光波长被转移到 来自具有电流供应和电压供应的波长的较长波长侧被关闭。
    • 8. 发明授权
    • Plasma display device and driving method thereof
    • 等离子体显示装置及其驱动方法
    • US07656367B2
    • 2010-02-02
    • US11258730
    • 2005-10-25
    • Kazuhiro Ito
    • Kazuhiro Ito
    • G09G3/28
    • G09G3/2022G09G3/293G09G3/294G09G3/2948G09G2300/0426G09G2310/0218
    • A driving waveform is applied to a scan electrode while a sustain electrode is biased at a ground voltage such that a driving board for driving the sustain electrode may not be needed. In addition, when grouping a plurality of scan electrodes into a plurality of groups and representing grayscale values using a frame-subfield method, a sustain discharge may be stably generated during a sustain period by reducing a time gap between address and sustain periods. When a sustain pulse is applied during a sustain period between two adjacent address periods, the last voltage is set to be a low level voltage.
    • 驱动波形被施加到扫描电极,同时维持电极被偏置在接地电压,使得可能不需要用于驱动维持电极的驱动板。 此外,当将多个扫描电极分组成多个组并且使用帧 - 子场方法表示灰度值时,通过减少地址和维持周期之间的时间间隔,可以在维持周期期间稳定地产生维持放电。 当在两个相邻地址周期之间的维持周期期间施加维持脉冲时,将最后一个电压设置为低电平电压。
    • 9. 发明授权
    • Driving method of plasma display panel
    • 等离子显示面板的驱动方法
    • US07642993B2
    • 2010-01-05
    • US11155860
    • 2005-06-16
    • Kazuhiro Ito
    • Kazuhiro Ito
    • G09G3/28
    • G09G3/2022G09G3/291G09G3/292G09G3/298G09G2310/0245G09G2310/066G09G2320/0228
    • A method for driving a plasma display panel having a plurality of first electrodes, a plurality of second electrodes, and a plurality of third electrodes provided in a direction crossing the first and second electrodes while one frame is divided into a plurality of subfields, the plurality of first electrodes being divided into a plurality of groups each including a first group and a second group, and the plurality of second electrodes being biased at a first voltage during a reset period, an address period, and a sustain period. During the address period, a second voltage is selectively applied to a plurality of first electrodes included in the first group. A third voltage lower than the second voltage is selectively applied to a plurality of first electrodes included in the second group.
    • 一种用于驱动等离子体显示面板的方法,所述等离子体显示面板具有多个第一电极,多个第二电极和沿与所述第一和第二电极交叉的方向设置的多个第三电极,而一个帧被分成多个子场, 的第一电极被分成多个组,每个组包括第一组和第二组,并且所述多个第二电极在复位周期,寻址周期和维持周期期间以第一电压被偏置。 在寻址期间,选择性地对第一组中包含的多个第一电极施加第二电压。 低于第二电压的第三电压被选择性地施加到包括在第二组中的多个第一电极。
    • 10. 发明授权
    • Plasma display panel and driving method thereof
    • 等离子显示面板及其驱动方法
    • US07570229B2
    • 2009-08-04
    • US11104729
    • 2005-04-13
    • Jun-Young LeeNam-Sung JungKazuhiro Ito
    • Jun-Young LeeNam-Sung JungKazuhiro Ito
    • G09G3/28
    • G09G3/294G09G3/296G09G2300/0426G09G2320/0228
    • A plasma display panel and driving method thereof. Waveforms for performing a reset operation, an address operation, and a sustain operation are applied to a scan electrode while a sustain electrode is biased with a predetermined voltage, and it is controlled such that the absolute value of a positive voltage of sustain voltage pulses applied to the scan electrode in the sustain period may be greater than the absolute value of a negative voltage thereof. Further, an address electrode is floated when a waveform having a sustain discharge function is applied to the scan electrode, and the voltage at the address electrode is controlled to be increased and decreased according to the voltage at the scan electrode.
    • 一种等离子体显示面板及其驱动方法。 用于执行复位操作,地址操作和维持操作的波形被施加到扫描电极,同时维持电极以预定电压被偏置,并且被控制使得施加的维持电压脉冲的正电压的绝对值 维持期间的扫描电极的电压可以大于其负电压的绝对值。 此外,当具有维持放电功能的波形被施加到扫描电极时,寻址电极浮起,并且根据扫描电极处的电压来控制寻址电极处的电压增加和减少。