公开(公告)号：US06456248B2

公开(公告)日：2002-09-24

申请号：US09836092

申请日：2001-04-17

申请人： Hiroki Ito

发明人： Hiroki Ito

IPC分类号： H01Q124

CPC分类号： H01Q1/48 ,  H01Q1/245 ,  H01Q1/526 ,  H01Q5/28

摘要： An antenna device and a portable wireless communication apparatus lower a local average specific absorption rate (SAR) in correspondence to at least two or more kinds of radio communication systems using different radio communication frequencies even when any radio communication frequency is used. Input impedance at open ends of conductive planar plates are brought close to infinity at first and second radio communication frequencies and restrict emission of electromagnetic waves by restricting a high-frequency current to be supplied to the above described conductive plates and a shield case, thereby securely lowering the local average SAR in correspondence to at least two or more kinds of radio communication systems using different radio communication frequencies even when any radio communication frequency is used.

摘要翻译： 即使在使用无线通信频率的情况下，天线装置和便携式无线通信装置对应于使用不同的无线通信频率的至少两种以上的无线通信系统也降低了局部平均特定吸收率（SAR）。 导电平板的开口端的输入阻抗在第一和第二无线电通信频率处接近无穷大，并通过限制向上述导电板和屏蔽壳提供的高频电流来限制电磁波的发射，从而可靠地 即使使用任何无线电通信频率，也可以使用不同的无线电通信频率对应于至少两种或更多种类型的无线电通信系统降低本地平均SAR。

公开(公告)号：US06454942B1

公开(公告)日：2002-09-24

申请号：US09484338

申请日：2000-01-18

申请人： Takuji Shintani ,  Hiroki Ito ,  Masahiko Hirose ,  Masaaki Ando

发明人： Takuji Shintani ,  Hiroki Ito ,  Masahiko Hirose ,  Masaaki Ando

IPC分类号： B01D6300

CPC分类号： B01D63/10

摘要： A liquid separation membrane module includes a semipermeable membrane receiving a pressure of a feed liquid, and a channel material arranged so as to support the back side of the semipermeable membrane. The channel material is a tricot knitted fabric knitted by a tricot knitting machine with two reeds and has a ground stitch portion and a convex portion. The tricot knitted fabric includes a thermoplastic synthetic filament yarn with a core/sheath type conjugated fiber having a high melting point polymer as a core component and a low melting point polymer as a sheath component. Thermoplastic synthetic filament yarns for forming the ground stitch portion and the convex portion have a substantially same fineness, and the yarns in the tricot knitted fabric are bonded with one another by melt adhesion of the low melting point component to rigidity the entire knitted fabric.

摘要翻译： 液体分离膜组件包括接收进料液体的压力的半透膜和布置成支撑半透膜的背面的通道材料。 通道材料是由具有两个簧片的特里科经编针织机编织的特里科经编针织物，并具有研磨针迹部分和凸起部分。 特里科经编针织物包括具有作为核心组分的高熔点聚合物和作为鞘组分的低熔点聚合物的芯/皮型复合纤维的热塑性合成长丝纱线。 用于形成针迹部分和凸起部分的热塑性合成长丝纱具有基本相同的细度，并且特里科经编针织物中的纱线通过低熔点成分的熔融粘附与整个针织物的刚性彼此粘合。

公开(公告)号：US06392390B1

公开(公告)日：2002-05-21

申请号：US09508364

申请日：2000-03-10

申请人： Hiroki Ito ,  Haruhiko Kohyama ,  Mikio Hidaka

发明人： Hiroki Ito ,  Haruhiko Kohyama ,  Mikio Hidaka

IPC分类号： G05F170

CPC分类号： H01H9/563

摘要： A synchronous switching apparatus for detecting a source voltage of each phase to close each phase at an electrical phase angle predetermined for each phase, including switching devices 1a-1c provided one for each phase for opening and closing an impedance load, switching devices 2a-2c for closing and opening the switching devices 1a-1c for each phase, measuring transformers 5a-5c for measuring source voltages of the respective phases and phase-to-phase voltages, and phase control devices 42 each for issuing a command for energizing the impedance load at an electrical phase angle in a range predetermined for each phase, when detecting a zero point of a source voltage of each phase or a zero point of each phase-to-phase voltage.

摘要翻译： 一种同步开关装置，用于检测各相的源极电压，以每相预定的电相角关闭各相，包括为每个相设置的用于打开和闭合阻抗负载的开关装置1a-1c，开关装置2a-2c 用于关闭和打开每相的开关装置1a-1c，用于测量各相的源极电压的测量用变压器5a-5c和相间电压，以及各自用于发出用于向阻抗负载供电的指令的相位控制装置42 当检测到每个相的源电压的零点或每个相间电压的零点时，以每个相位预定的范围内的电相角。

公开(公告)号：US06229485B1

公开(公告)日：2001-05-08

申请号：US09370176

申请日：1999-08-09

申请人： Hiroki Ito ,  Masatoshi Sawamura ,  Yuichiro Saito

发明人： Hiroki Ito ,  Masatoshi Sawamura ,  Yuichiro Saito

IPC分类号： H01Q302

CPC分类号： H01Q19/005 ,  H01Q1/243 ,  H01Q9/0421

摘要： An antenna device includes a flat ground conductor; a first flat radiation conductor disposed against the flat ground conductor interposing a first dielectric layer; a first short-circuit conductor connecting an end of the first flat radiation conductor and the flat ground conductor; a second flat radiation conductor disposed partly against an opposite side of the first flat radiation conductor with its other side facing the ground conductor interposing a second dielectric layer; a second short-circuit conductor connecting an end of the second flat radiation conductor and the flat ground conductor; and a supply point disposed on the first flat radiation conductor. With this structure, the first flat radiation conductor and the second flat radiation conductor are disposed partly against each other, which enables more size reduction than that of conventional antennas operating at the same resonant frequency.

摘要翻译： 天线装置包括平坦的接地导体; 第一扁平辐射导体，设置在平面接地导体上，插入第一介电层; 连接所述第一扁平辐射导体的端部和所述扁平接地导体的第一短路导体; 第二扁平辐射导体部分地设置在第一平坦辐射导体的相对侧上，其另一侧面对接地导体，插入第二介电层; 连接所述第二扁平辐射导体的端部和所述扁平接地导体的第二短路导体; 以及设置在第一扁平辐射导体上的供应点。 利用这种结构，第一扁平辐射导体和第二扁平辐射导体部分地彼此配置，这使得能够比在相同共振频率下操作的常规天线更大的尺寸减小。

公开(公告)号：US06172863B2

公开(公告)日：2001-01-09

申请号：US09339678

申请日：1999-06-24

申请人： Hiroki Ito ,  Haruhiko Kohyama ,  Mikio Hidaka

发明人： Hiroki Ito ,  Haruhiko Kohyama ,  Mikio Hidaka

IPC分类号： H02H318

CPC分类号： H01H33/593 ,  H01H33/006 ,  Y10S323/908

摘要： A phase control switching system for controlling opening and closing timings of a power switching device to suppress the occurrence of an exciting rush current or a make-and-break surge voltage which is severe to system equipment such as a transformer, a reactor and a capacitor bank, or for controlling an arcing time of a circuit breaker to put the circuit breaker into operation for the arcing time leading to no-re-ignition or for the optimal breaking time. In the phase control switching system, a current measuring section or a current gradient measuring section is provided to measure a current value or a current gradient value of a current to be broken or introduced, and a reference phase detecting section estimates a current zero point of a current waveform on the basis of the measurements. Subsequently, a control section, upon receipt of an opening/closing command, an opening phase control operation using an arbitrary time point after the current waveform estimation as a reference.

摘要翻译： 一种用于控制电力开关装置的开闭定时的相位控制切换系统，以抑制对诸如变压器，电抗器和电容器的系统设备严重的激励冲击电流或制动和中断浪涌电压的发生 或用于控制断路器的电弧时间以将断路器投入运行，用于导致无再点火或最佳断开时间的电弧时间。 在相位控制切换系统中，提供电流测量部或电流梯度测量部，以测量待破坏或引入的电流的电流值或电流梯度值，并且基准相位检测部估计当前的零点 基于测量的电流波形。 随后，控制部分在接收到打开/关闭命令之后，使用在当前波形估计之后的任意时间点作为基准的打开相位控制操作。

公开(公告)号：US6075487A

公开(公告)日：2000-06-13

申请号：US20054

申请日：1998-02-06

申请人： Hiroki Ito

发明人： Hiroki Ito

IPC分类号： H01Q1/24

CPC分类号： H01Q1/244

摘要： Corresponding to a connector for an external antenna arranged at a bottom end portion of a housing of a portable telephone, a RF transmitter-receiver circuit and a feeding spring are provided in a lower part of a circuit substrate, electric power is supplied to a bottom end portion of a rod antenna longer than .lambda./4, and a supporting fitting arranged at a top end portion of the housing, for contacting the intermediate portion of the rod antenna is connected to a ground of the circuit substrate through a ground spring, whereby a portion of the rod antenna above the circuit substrate stably operates as a .lambda./4 mono-pole antenna.

摘要翻译： 对应于布置在便携式电话的壳体的底端部分的用于外部天线的连接器，在电路基板的下部设置RF发射器 - 接收器电路和馈送弹簧，电力被提供给底部 长于λ/ 4的杆状天线的端部，以及布置在壳体的顶端部分处的用于接触杆状天线的中间部分的支撑配件通过接地弹簧连接到电路基板的地面，由此 电路基板上方的棒状天线的一部分稳定地作为λ/ 4单极天线工作。

公开(公告)号：US5952974A

公开(公告)日：1999-09-14

申请号：US807274

申请日：1997-02-28

申请人： Hiroki Ito ,  Katsumi Hirota ,  Shinichi Kuroda

发明人： Hiroki Ito ,  Katsumi Hirota ,  Shinichi Kuroda

IPC分类号： H01Q1/10 ,  H01Q1/24 ,  H01Q1/30 ,  H01Q1/36 ,  H01Q9/32 ,  H01Q11/08 ,  H04Q7/32

CPC分类号： H01Q1/244

摘要： A mono-pole antenna is composed of a first element and a second element. An insulator spacer is disposed between the first element and the second element so as to capacitively couple them. In the state that the antenna is retracted, the helical antenna operates. In the state that the antenna is extended, the mono-pole antenna composed of the first element and the second element operates. Since the mono-pole antenna is composed of the first element and the second element that are capacitively coupled, even if the electrical length of the helical antenna is different from the electrical length of the mono-pole antenna, the impedances can be properly matched with a common matching circuit.

摘要翻译： 单极天线由第一元件和第二元件构成。 绝缘体间隔件设置在第一元件和第二元件之间以便电容耦合它们。 在天线缩回的状态下，螺旋天线工作。 在天线延伸的状态下，由第一元件和第二元件构成的单极天线工作。 由于单极天线由电容耦合的第一元件和第二元件组成，所以即使螺旋天线的电长度与单极天线的电长度不同，阻抗也可以适当地匹配 一个通用的匹配电路。

公开(公告)号：US5918162A

公开(公告)日：1999-06-29

申请号：US833122

申请日：1997-04-04

申请人： Hiroki Ito ,  Nobuo Sato ,  Yoshiki Kanayama ,  Shinichi Kuroda

发明人： Hiroki Ito ,  Nobuo Sato ,  Yoshiki Kanayama ,  Shinichi Kuroda

IPC分类号： H01Q1/24 ,  H04B1/38 ,  H04Q7/38

CPC分类号： H01Q1/244

摘要： An antenna unit in which fine antenna characteristic can be obtained when the antenna is contained/pulled out. When the second antenna (9) is contained, the second antenna is electrically disconnected from the feeding circuits (5, 7) by the antenna cover (13), so that only the first antenna (8) operates as antenna. On the other hand, when the second antenna is pulled out, the first antenna is compressed by the antenna stopper element (21) and the electrical length is varied, so that only the second antenna operates as antenna. As a result, fine antenna characteristic can be obtained when the antenna is contained/pulled out.

摘要翻译： 天线单元，其中当天线被收纳/拉出时可以获得精细的天线特性。 当第二天线（9）被包含时，第二天线通过天线盖（13）与馈电电路（5,7）电断开，从而仅第一天线（8）作为天线工作。 另一方面，当第二天线被拉出时，第一天线被天线止动元件（21）压缩，并且电长度变化，使得只有第二天线作为天线工作。 结果，当天线被包含/拉出时，可以获得精细的天线特性。