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    • 134. 发明授权
    • Magnetic field observation device and magnetic field observation method
    • 磁场观测装置及磁场观测方法
    • US08621658B2
    • 2013-12-31
    • US13819486
    • 2011-09-05
    • Hitoshi SaitoSatoru Yoshimura
    • Hitoshi SaitoSatoru Yoshimura
    • G01Q60/54G01Q60/38G01Q60/50
    • G01Q60/38G01Q60/50G01Q60/54G01R33/022G01R33/0385
    • A magnetic-field-observation device and method for measuring magnetic force near a magnetic material specimen's surface with high resolution and detecting the polarity of the magnetic pole of specimen's surface. The device including: a probe; excitation mechanism that excites it; scanning mechanism that relatively moves the probe and specimen; alternating magnetic field generation mechanism to make the probe periodically undergo magnetization reversal and apply thereto an alternating magnetic field having magnitude not making the specimen undergo magnetization reversal; and modulation measurement mechanism for measuring degree of periodical frequency modulation of the probe's oscillation caused by its apparent spring constant periodically changed by force of periodically changed intensity and applied to the probe by alternating force through magnetic interaction between magnetizations of the probe and specimen, by frequency demodulation or by measuring intensity of one sideband wave spectrum among spectrums generated by the frequency modulation. The method performed using the device.
    • 一种用于以高分辨率测量磁性材料试样表面附近的磁力并检测试样表面磁极极性的磁场观测装置和方法。 该装置包括:探头; 激发机制; 相对移动探头和试样的扫描机构; 交变磁场产生机构使探针周期性地进行磁化反转,并向其施加具有不使样本经历磁化反转的量值的交变磁场; 以及用于测量由其由周期性变化的强度周期性地改变的表观弹簧常数引起的探头振荡周期性频率调制程度的调制测量机构,并且通过以探针和样品的磁化之间的磁相互作用的交替力通过频率施加到探针 通过频率调制产生的频谱中的一个边带波谱的强度进行解调或测量。 使用该设备执行的方法。
    • 136. 发明申请
    • METHOD OF INSPECTING POWER CONVERTER AND INSPECTING DEVICE
    • 检查功率转换器和检测装置的方法
    • US20100295573A1
    • 2010-11-25
    • US12784922
    • 2010-05-21
    • Koji IRIETetsu YamadaHitoshi Saito
    • Koji IRIETetsu YamadaHitoshi Saito
    • G01R31/36
    • H02M7/53
    • An inspecting ECU 4 and a GD substrate 3 are connected to an inverter circuit 100 for converting a power to be supplied from a voltage source 2 and outputting the converted power to a motor 5, and switch a conducting state of each of the elements in the inverter circuit 100. A conducting state of the element is switched in accordance with a driving condition for inspection corresponding to a whole active region of the element in a state that an inspecting load 50 is connected to the inverter circuit 100. A phase current flowing in the element and a voltage between terminals of the element through a voltage detector 11 and a current detector 12 are detected to obtain a correlation of an ON time of the element and a phase current value based on the current and the voltage which are detected.
    • 检查ECU4和GD基板3连接到逆变器电路100,用于转换从电压源2提供的电力,并将转换的电力输出到电动机5,并且将每个元件的导通状态切换到 逆变器电路100.在检查负载50连接到逆变器电路100的状态下,根据与元件的整个有源区域对应的用于检查的驱动条件来切换元件的导通状态。 检测通过电压检测器11和电流检测器12的元件的端子之间的元件和电压,以基于检测到的电流和电压获得元件的导通时间和相电流值的相关性。
    • 139. 发明授权
    • Method and device for analyzing distribution of coercive force in vertical magnetic recording medium using magnetic force microscope
    • 使用磁力显微镜分析垂直磁记录介质中矫顽力分布的方法和装置
    • US07560921B2
    • 2009-07-14
    • US11631101
    • 2005-06-15
    • Shunji IshioHitoshi Saito
    • Shunji IshioHitoshi Saito
    • G01R33/02
    • G01R33/14G01Q60/50G01Q60/56G01R33/10
    • A coersive force distribution analyzing, apparatus applies a magnetic field substantially perpendicularly to a sample including a perpendicularly magnetically recordable magnetic thin film. While tow-dimensionally moving the sample, the coersive force distribution analyzing apparatus generates a magnetic flux detection signal in response to a leakage flux generated in a magnetic domain on a sample surface. The apparatus applies, to the sample, a first external magnetic field and a second external magnetic field respectively corresponding to a first threshold and a second threshold selected from a hysteresis characteristic corresponding to average magnetization of the sample. This results in first magnetic domain image data and second magnetic domain image data. The apparatus uses the first and second thresholds to binarize the first and second image data to generate a first coersive force distribution pattern corresponding to the difference between the binarized first and second image data.
    • 强制力分布分析装置对包括垂直磁记录磁性薄膜的试样基本垂直地施加磁场。 在牵引力地移动样品的同时,该强力分布分析装置响应于样品表面上的磁畴中产生的漏磁通而产生磁通量检测信号。 该装置向样品施加分别对应于从对应于样品的平均磁化强度的滞后特性中选择的第一阈值和第二阈值的第一外部磁场和第二外部磁场。 这导致了第一磁畴图像数据和第二磁畴图像数据。 该装置使用第一阈值和第二阈值来二值化第一和第二图像数据以产生对应于二值化的第一和第二图像数据之间的差的第一强制力分布图案。