会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 11. 发明授权
    • Radiation detection device for nuclear medicine diagnosis device and detecting method therefor
    • 核医学诊断装置用辐射检测装置及其检测方法
    • US07045789B2
    • 2006-05-16
    • US10381601
    • 2001-10-01
    • Koichi OgawaTakuzo Takayama
    • Koichi OgawaTakuzo Takayama
    • G01T1/164G01T1/24
    • G01T1/2985A61B6/037A61B6/4258
    • In case of performing so-called “PET acquisition”, a nuclear medical diagnosis apparatus according to the present invention does not set only gamma rays which imparted predetermined energy values (for example, energy values of and above a Compton edge), as subjects for coincidental counting acquisition (coincidence acquisition), but it discriminates also further gamma rays which caused a photoelectric effect after having undergone Compton scattering once in a radiation detection unit, so as to set them as subjects for the coincidental counting acquisition. Concretely, if the added value of energy values observed in two detection elements is “near 511 keV”, the existence of the further gamma ray is presumed, and the acquisition thereof is possible. Besides, that one of the two detection elements as to which energy near the Compton edge is observed can be specified as the incident position of the gamma ray on the radiation detection unit.
    • 在进行所谓的“PET采集”的情况下,根据本发明的核医学诊断装置不能仅设定赋予预定能量值(例如,康普顿边缘以上的能量值)的伽马射线,作为 巧合计数采集(重合获取),但是在放射线检测单元中经历了康普顿散射一次之后,还鉴别出引起光电效应的另外的伽马射线,从而将它们设置为重合计数采集的对象。 具体地说,如果在两个检测元件中观察到的能量值的附加值为“接近511keV”,则推测存在另外的伽马射线,并且其获取是可能的。 此外,观察到康普顿边缘附近的能量的两个检测元件中的一个可以被指定为伽马射线在放射线检测单元上的入射位置。
    • 17. 发明授权
    • Radio antenna device
    • 无线电天线装置
    • US06211830B1
    • 2001-04-03
    • US09485417
    • 2000-02-10
    • Kenji MonmaToshimitsu MatsuyoshiKoichi OgawaYoshio Koyanagi
    • Kenji MonmaToshimitsu MatsuyoshiKoichi OgawaYoshio Koyanagi
    • H01Q124
    • H01Q19/26H01Q1/242H01Q1/244H01Q3/24H01Q19/32H01Q21/29
    • A radio antenna is disclosed with improvement in a radiation efficiency obtained by changing a directivity pattern of an antenna toward a direction not interfered by an obstacle and thus reducing radio wave interference by the obstacle. A whip antenna is connected to a transceiver unit in a radio set housing through a feeder line. A passive element is grounded to the radio set housing through a load impedance element. The whip antenna changes the horizontal directivity pattern in dependence upon the electromagnetic coupling with the passive element. The passive element operates as a wave director or a reflector for the whip antenna in accordance with the value of the load impedance element. When the passive element operates as a wave director, the radiation becomes much stronger in the direction toward the passive element. On the other hand, when the passive element operates as a reflector, the radiation in the direction away from the passive element becomes much stronger.
    • 公开了一种无线电天线,其通过将天线的方向性模式改变为不受障碍物干扰的方向而获得的辐射效率得到改善,从而减少了障碍物的无线电波干扰。 鞭状天线通过馈线连接到无线电设备外壳中的收发器单元。 无源元件通过负载阻抗元件接地到无线电设备外壳。 鞭状天线根据与无源元件的电磁耦合来改变水平方向性图案。 无源元件根据负载阻抗元件的值作为鞭状天线的波导或反射器工作。 当无源元件作为导波器工作时,辐射在朝向无源元件的方向上变得更强。 另一方面,当无源元件作为反射器工作时,远离被动元件的方向的辐射变得更强。
    • 18. 发明授权
    • Mobile radio antenna
    • 移动无线电天线
    • US06177911B1
    • 2001-01-23
    • US08800804
    • 1997-02-18
    • Naoki YudaKoichi OgawaYasuhiro OtomoHiroyuki NakamuraMasaaki Yamabayashi
    • Naoki YudaKoichi OgawaYasuhiro OtomoHiroyuki NakamuraMasaaki Yamabayashi
    • H01Q1900
    • H01Q21/10H01Q1/246H01Q5/40H01Q9/145H01Q9/16
    • A narrow and light mobile radio antenna that requires convenient supporting metal fittings provided in a base station is provided. An inner conductor of a coaxial feed line extends upward by a length of ¼ wavelength from the upper end of an outer conductor. This extended inner conductor forms an antenna element. Outside the coaxial feed line, a ¼-wavelength sleeve-like metal pipe made of brass is located with one end connected to the upper end of the outer conductor. On a part of the inner surface of the open end of the metal pipe, an internal thread is formed by tapping. In the open end of the metal pipe, an insulating spacer having an external thread formed around its periphery is inserted. In other words, the insulating spacer is located between the inner wall of the metal pipe and the outer conductor of the coaxial feed line. At the lower end of the coaxial feed line, a coaxial connector for connection with an external circuit is provided.
    • 提供了一种需要在基站中提供方便的支撑金属配件的窄而轻的移动无线电天线。 同轴馈线的内导体从外导体的上端向上延伸1/4波长的长度。 该延伸的内部导体形成天线元件。 在同轴馈线以外,由黄铜制成的1/4波长套管状金属管位于一端连接到外导体的上端。 在金属管的开口端的内表面的一部分上,通过攻丝形成内螺纹。 在金属管的开口端插入有围绕其周边形成有外螺纹的绝缘垫片。 换句话说,绝缘间隔件位于金属管的内壁和同轴馈电线的外导体之间。 在同轴馈电线的下端提供用于与外部电路连接的同轴连接器。