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    • 3. 发明专利
    • Microwave ion source, linear accelerator system, accelerator system, accelerator system for medical use, high energy beam application system, neutron generating device, ion beam processing device, microwave plasma source, and plasma processing device
    • 微波离子源,线性加速器系统,加速器系统,用于医疗用途的加速器系统,高能量束应用系统,中子发生装置,离子束加工装置,微波等离子体源和等离子体处理装置
    • JP2007165250A
    • 2007-06-28
    • JP2005363586
    • 2005-12-16
    • Hitachi Ltd株式会社日立製作所
    • TANAKA MASANOBUHARA SHIGEMITSUIGA TAKASHI
    • H01J27/18A61N5/10H01J37/08H01J37/30H01J37/32H05H1/46H05H3/06H05H7/08
    • PROBLEM TO BE SOLVED: To provide a microwave ion source or a plasma source stabilizing beam current without precise magnetic field adjustment by reducing change of plasma density caused by change of strength of magnet field in axial direction or ion beam current, and to provide an application device utilizing the above devices such as a linear accelerator system, an accelerator system for medical use, or the like. SOLUTION: Multipolar magnetic field B2 trapping a plasma generated by discharge is locally generated at neighborhood of a discharging container by arranging 16 pieces of permanent magnets 6 around the discharging container so that the polarity of adjacent magnets are different from each other. A change of plasma density caused by the change of a magnetic field B1 in axial direction due to the multipolar magnetic field is reduced, and a change of ion beam current drawn out from holes of electrodes 9a to 9c is reduced as well. By the above, the ion beam current can be stabilized without precisely adjusting the magnetic field B. Further, an ion beam of large current can be stably obtained even in the case of generating the magnetic field B1 in axial direction by a permanent magnet 15. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:通过减少由轴向或离子束电流中的磁场强度的变化引起的等离子体密度的变化,提供微波离子源或等离子体源稳定束电流而不进行精确的磁场调整,以及 提供利用上述装置的应用装置,例如线性加速器系统,用于医疗用途的加速器系统等。 解决方案:通过在放电容器周围布置16个永磁体6使得相邻磁体的极性彼此不同,在放电容器附近局部地产生通过放电产生的等离子体的多极磁场B2。 由于多极磁场而导致由轴向上的磁场B1的变化引起的等离子体密度的变化也降低,并且从电极9a〜9c的空穴引出的离子束电流的变化也降低。 通过上述,离子束电流可以在不精确地调整磁场B的情况下稳定化。而且,即使在通过永磁体15在轴向上产生磁场B1的情况下,也可以稳定地获得大电流的离子束。 版权所有(C)2007,JPO&INPIT
    • 4. 发明专利
    • Charged particle beam transport apparatus and linear accelerator system provided with the same
    • 充电颗粒光束传输装置和线性加速器系统
    • JP2005235697A
    • 2005-09-02
    • JP2004046539
    • 2004-02-23
    • Hitachi Ltd株式会社日立製作所
    • HANEE TAKAMITSUTANAKA MASANOBU
    • G21K1/00A61N5/10G21K1/087G21K5/04H01J27/16H01J37/04H01J37/08H01J37/12H01J37/18H05H7/08H05H9/00
    • PROBLEM TO BE SOLVED: To provide a beam transport apparatus which uses an electrostatic lens of low cost and simple configuration, and transporting a large current beam in high beam utilization efficiency even in a long transportation zone.
      SOLUTION: A lead-out electrode 31 has a decelerate electrode 8 receiving a negative voltage, the electrostatic lens 32 has an electron suppression electrode 22 and an electron suppression electrode 23 for receiving a negative voltage between a beam entrance side electrode 13 and a center electrode 14 receiving a positive voltage and between the center electrode 14 receiving the positive voltage and a beam exit side electrode 15. The decelerate electrode 8 and the electron suppression electrode 22 and 23 act to make electrons to stay in a transportation zone 9 and a transportation zone 21, and suppresses beam divergence by effectively neutralizing the beam space charge.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种使用低成本且简单结构的静电透镜的光束传输装置,并且即使在长的传送区域中也输送远距离利用效率的大电流束。

      解决方案:引出电极31具有接收负电压的减速电极8,静电透镜32具有电子抑制电极22和电子抑制电极23,用于在光束入射侧电极13和 接收正电压的中心电极14和接收正电压的中心电极14和光束出射侧电极15.减速电极8和电子抑制电极22和23用于使电子停留在运输区9和 运输区域21,并且通过有效地中和束空间电荷来抑制光束发散。 版权所有(C)2005,JPO&NCIPI

    • 5. 发明专利
    • Data processor and data transfer system
    • 数据处理器和数据传输系统
    • JP2003318940A
    • 2003-11-07
    • JP2002126276
    • 2002-04-26
    • Hitachi Eng Co LtdHitachi Information & Control Systems IncHitachi Ltd日立エンジニアリング株式会社株式会社 日立ハイコス株式会社日立製作所
    • TANAKA MASANOBUFURUHASHI KENJIAOKI TOMOAKI
    • G06F13/38H04L12/46
    • PROBLEM TO BE SOLVED: To enhance a data transmission efficiency between networks with different properties.
      SOLUTION: The data transfer system is provided with: two network controllers (40, 41); transmission/reception FIFO buffers (42 to 45) connected to the respective network controllers and for temporarily storing transmission/ reception data; and transfer FIFO buffers (46, 47) for interconnecting the network controllers to temporarily store transfer data between the network controllers. Each network controller can control sharing of received information to the transmission/reception FIFO buffers or transfer FIFO buffers depending on a destination contained in the information externally received. In performing data transmission between both the networks with different properties, the one network can directly transmit data to the other network without the need for processing by a CPU.
      COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提高不同性能的网络之间的数据传输效率。 数据传输系统提供:两个网络控制器(40,41); 发送/接收FIFO缓冲器(42至45),连接到各个网络控制器并用于临时存储发送/接收数据; 以及传送FIFO缓冲器(46,47),用于互连网络控制器以在网络控制器之间临时存储传输数据。 每个网络控制器可以根据包含在外部接收的信息中的目的地,将接收到的信息的共享控制到发送/接收FIFO缓冲器或传送FIFO缓冲器。 在具有不同属性的两个网络之间执行数据传输时,一个网络可以直接将数据发送到另一个网络,而不需要CPU处理。 版权所有(C)2004,JPO
    • 8. 发明专利
    • ION SOURCE
    • JP2001143629A
    • 2001-05-25
    • JP32503699
    • 1999-11-16
    • HITACHI LTD
    • TANAKA MASANOBUAMAMIYA KENSUKETAKEUCHI KAZUHIROSATO TADASHI
    • H01J27/08H01J37/08
    • PROBLEM TO BE SOLVED: To simplify a structure of a discharging vessel top plate, minimize a plasma loss and enhance an ion production efficiency. SOLUTION: A structure for insulating a discharging vessel top plate 2 from a discharging vessel 1 which is a discharging cathode by an insulating spacer 12, while removing a plasma closing magnet on a discharging vessel top plate 2 having been mounted as a conventional ion source, is provided. Thereby, the structure on the discharging vessel top plate 2 is simplified, a plasma loss on the discharging vessel top plate in the absence of the magnet is minimized and the reduction of an ion production efficiency can be prevented. Further, to set a potential of the discharging vessel top plate 2, a resistor 15 is disposed between the discharging vessel 1 and the discharging the vessel top plate 2 to connect them. Furthermore, according to the present invention, by enhancing the ion production efficiency, the life of a filament can be lengthened by a high current of an ion beam 9 and/or the reduction of a discharging power.