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    • 2. 发明专利
    • Magnetic signal measuring device
    • 磁信号测量装置
    • JP2011203264A
    • 2011-10-13
    • JP2011118635
    • 2011-05-27
    • Hitachi Ltd株式会社日立製作所
    • TSUKAMOTO AKIRAKANDORI AKIHIKOMIZOGUCHI TAKAKO
    • G01N27/82
    • PROBLEM TO BE SOLVED: To facilitate detection of a magnetic signal of a foreign matter by vanishing magnetization of an inspection material by applying a cancel magnetic field in a reverse direction after magnetization of the inspection material, whereas, in foreign matter inspection of a magnetic material by the magnetic signal, detection of a feeble signal from a foreign matter is difficult because a large magnetic signal is generated from the inspection material.SOLUTION: After magnetization of a sample, a cancel magnetic field in the reverse direction by which magnetization of the inspection material is vanished exactly is applied. Normally, since a magnetic characteristic is different between a foreign matter and the inspection material, the magnetic signal of the foreign matter can be detected without being vanished. Since a large magnetic signal generated from the inspection material can be reduced, a feeble magnetic signal from the foreign matter can be measured with high sensitivity.
    • 要解决的问题:为了通过在检查材料的磁化后施加相反方向的抵消磁场,通过消除检查材料的磁化来促进异物的磁信号的检测,而在磁性材料的异物检查 通过磁信号,由于从检查材料产生大的磁信号,因此从异物检测到微弱的信号是困难的。解决方案:在样品磁化后,检查磁化的相反方向的抵消磁场 材料被消失了。 通常,由于异物和检查材料之间的磁特性不同,所以可以检测异物的磁信号而不会消失。 由于可以减少从检查材料产生的大的磁信号,所以可以高灵敏度地测量异物的微弱磁信号。
    • 3. 发明专利
    • Magnetic signal measuring device
    • 磁信号测量装置
    • JP2008286616A
    • 2008-11-27
    • JP2007131203
    • 2007-05-17
    • Hitachi Ltd株式会社日立製作所
    • TSUKAMOTO AKIRASUZUKI DAISUKEKANDORI AKIHIKO
    • G01N27/72
    • G01N33/54333
    • PROBLEM TO BE SOLVED: To solve the problem wherein accurate measurement is impossible because of magnetic signals from magnetic impurities included in a sample container.
      SOLUTION: Magnetic signals from magnetic impurities included in the sample container independent of an external magnetic field for orientation can be canceled by determining the difference between two measuring signals acquired by applying the external magnetic field for orientation in normal and reverse directions, respectively. Hereby, an effect of the magnetic impurities included in the sample container can be reduced, and an aiming bonded magnetic marker signal can be measured with high sensitivity.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了解决由于包含在样品容器中的磁性杂质的磁信号而不可能进行精确测量的问题。 解决方案:通过确定通过在正向和反向方向施加外部磁场来获取的两个测量信号之间的差异,可以消除包含在样品容器中的磁性杂质的磁信号,而不管外部磁场用于取向 。 由此,可以减少包含在样品容器中的磁性杂质的影响,并且可以以高灵敏度测量瞄准粘合磁标记信号。 版权所有(C)2009,JPO&INPIT
    • 4. 发明专利
    • Magnetic field measuring apparatus
    • 磁场测量装置
    • JP2008086675A
    • 2008-04-17
    • JP2006273566
    • 2006-10-05
    • Hitachi Ltd株式会社日立製作所
    • SEKI YUUKAIKANDORI AKIHIKOONUMA MITSURU
    • A61B5/05
    • A61B5/04008
    • PROBLEM TO BE SOLVED: To provide a biomagnetism measuring apparatus capable of easily detecting brain magnetic field with higher sensitivity than usual, more practically, easily closing the sensor surface to the head surface of a test subject by coupling two independent cryostats while keeping the enantiomeric composition, and detecting the brain magnetic field of right and left brains with high sensitivity at the same time. SOLUTION: This biomagnetism measuring apparatus has two independent cryostats which hold a SQUID fluxmeter and are mounted to be in enantiomeric composition. These two cryostats move together from right to left or up and down and rotate during the enantiomeric composition. The gantry holding cryostats is a portal type with the consideration to suppress the vibration of cryostats. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够以比平常更高的灵敏度容易地检测脑磁场的生物磁性测量装置,更实际地,通过耦合两个独立的低温恒温器,容易地将传感器表面关闭到测试对象的头表面,同时保持 对映异构体组成,并同时以高灵敏度检测右脑和左脑的脑磁场。

      解决方案:该生物磁测量装置具有两个独立的低温恒温器,其保持SQUID通量计并且被安装成对映体组成。 这两个低温恒温器从右向左或上下移动,并在对映异构体组成期间旋转。 保持低温恒温器的门架是门禁型,考虑到抑制低温恒温器的振动。 版权所有(C)2008,JPO&INPIT

    • 6. 发明专利
    • Biological light measuring instrument, image display method and program
    • 生物光度测量仪器,图像显示方法和程序
    • JP2005328855A
    • 2005-12-02
    • JP2004147124
    • 2004-05-18
    • Hitachi Ltd株式会社日立製作所
    • YAMAMOTO TAKESHIKANDORI AKIHIKO
    • G01N21/17A61B5/00A61B5/11A61B5/145A61B5/1455A61B10/00
    • A61B5/0073A61B5/14553
    • PROBLEM TO BE SOLVED: To attain an efficient performance check by shortening the reproduction time for confirming a measured video in a biological light measurement, and to delete the data during a period including noise and a period without performing a task correctly in a short time.
      SOLUTION: The moving images of a subject in a first trial period (comprising a resting period when the subject rests and a task period in which the task is given to the subject) and a second trial period (comprising the resting period in which the subject rests and the task period in which the task is given to the subject) are picked up, and the moving image in the first trial period and the moving image in the second trial period are practically synchronized and displayed. Thus, the performance in each trial period is efficiently checked, and moving image reproduction time is shortened. Also, the data of the trial period including the noise and the trial period without performing the task correctly are deleted in a shorter time than heretofore.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了通过缩短用于确认生物光测量中的测量视频的再现时间来获得有效的性能检查,并且在包括噪声和周期的时段期间删除数据,而不在 短时间。 解决方案:在第一试用期(包括受试者休息的休息期和给予对象的任务的任务期间)和第二试验期(包括静息期在 拾取被摄体所依然的任务期间,对被摄体进行任务的任务期间),实时同步显示第一试用期间的运动图像和第二试验期间的运动图像。 因此,有效地检查每个试用期的性能,并且缩短了运动图像再现时间。 此外,包括噪声和试用期的试用期的数据在没有正确执行任务的情况下在比迄今为止更短的时间内被删除。 版权所有(C)2006,JPO&NCIPI
    • 7. 发明专利
    • Biomagnetic field measuring instrument
    • JP2004041789A
    • 2004-02-12
    • JP2003377738
    • 2003-11-07
    • Hitachi Ltd株式会社日立製作所
    • KANDORI AKIHIKOMIYASHITA TAKESHITSUKADA KEIJISASABUCHI HITOSHISUZUKI HIROYUKI
    • A61B5/05
    • PROBLEM TO BE SOLVED: To provide a biomagnetic field measuring instrument of excellent operability capable of automatically setting the reference time of magnetic field waveform. SOLUTION: This biomagnetic field measuring instrument is provided with a plurality of magnetic sensors for measuring the magnetic field generated from the heart of an organism, a computer for processing measured magnetic field waveform, and a display means for displaying processing performed by the computer. The computer acquires the measured magnetic field waveform from time t 1 to time t 2 predetermined over QRS wave by going back to predetermined time (t off ) from the reference time obtained by setting as a reference the time when the rising part of QRS wave of systole of heart coincides with the threshold value, the time when the falling part of QRS wave coincides with the threshold value, or the peak position time of QRS wave out of the measured magnetic field waveform, on channels corresponding to the respective magnetic sensors, acquires an equivalent propagation time chart connecting equivalent points of propagation time from the time t 1 to the time of peak position of QRS wave, and displays the equivalent propagation time chart on the display means. COPYRIGHT: (C)2004,JPO
    • 9. 发明专利
    • BIOMAGNETIC FIELD MEASURING APPARATUS
    • JP2001346772A
    • 2001-12-18
    • JP2000175552
    • 2000-06-07
    • HITACHI LTD
    • KANDORI AKIHIKOMIYASHITA TAKESHISUZUKI DAISUKEYOKOZAWA KOICHITSUKADA KEIJI
    • G01R33/035A61B5/0402A61B5/05
    • PROBLEM TO BE SOLVED: To provide a biomagnetic field measuring apparatus capable of detecting motion of blood inside an internal organ simultaneously as a biomagnetic field is measured. SOLUTION: This biomagnetic field measuring apparatus comprises plural SQUID flux meters 1 and 8 to detect a magnetic field generated from a subject, a cryostat 2 to keep the SQUID flux meters at low temperature, drive circuits 3, 4, 5, 6, and 7 to drive the SQUID flux meters 1 and 8, an oscillator 18 to supply a high frequency current to the subject, wires 22 and 23 to transmit the high frequency current, electrodes disposed at plural positions of the subject, and connected to the wires 22 and 23, a first signal processing circuit provided with a high zone pass filter 13 to be connected to an integrator 5, a phase detector 14 to which a reference current is inputted, a band pass filter 15, and an amplifier 16, and connected to the integrator 5, a second signal processing circuit provided with a band pass filter 9, a notch filter 10, and an amplifier 12, and connected to the integrator 5, and a display unit to display one or more of output waveforms of the first and the second signal processing circuits, and an electrocardiogram waveform. Motion of an internal organ can thus be monitored at real time simultaneously as a biomagnetic field is measured.