公开(公告)号：US09222914B2

公开(公告)日：2015-12-29

申请号：US14347417

申请日：2012-09-25

Applicant: AKITA UNIVERSITY

Inventor： Hitoshi Saito ,  Satoru Yoshimura

IPC: G01R33/12 ,  G01N27/72 ,  G01Q30/04 ,  G01Q60/54 ,  G01R33/038 ,  B82Y35/00

CPC classification number: G01N27/725 ,  B82Y35/00 ,  G01Q30/04 ,  G01Q60/54 ,  G01R33/0385

Abstract: A magnetic profile measuring device which scans a space where an alternating-current magnetic field exists by a magnetized probe on a tip of a driven cantilever, detects vibration of the cantilever, and generates an image of magnetic field distribution of the space, the device including: the cantilever having the probe equipped on the tip thereof; a driver driving the cantilever; a vibration sensor detecting vibration of the probe wherein the driven vibration of the cantilever is frequency-modulated by the alternating-current magnetic field; a demodulator demodulating from a detection signal of the vibration sensor a magnetic signal corresponding to an alternating-current magnetic field; a scanning mechanism; a data storage storing an initial data for each coordinate of the space; a modified data generator recalling the initial data from the data storage and generating a plurality of data by modifying the phase of the initial data; and an image display device.

Abstract translation: 扫描由驱动悬臂的尖端上的磁化探针存在交流磁场的空间的磁轮廓测量装置检测悬臂的振动，并产生空间的磁场分布图像，该装置包括 ：悬臂，其顶部装有探头; 驾驶悬臂的司机 振动传感器，其检测所述探针的振动，其中所述悬臂的驱动振动由所述交流磁场进行调频; 解调器，根据所述振动传感器的检测信号，对应于交流磁场的磁信号进行解调; 扫描机制; 存储空间的每个坐标的初始数据的数据存储器; 修改后的数据生成器通过修改初始数据的相位来从数据存储器回调初始数据并产生多个数据; 和图像显示装置。

公开(公告)号：US08891190B1

公开(公告)日：2014-11-18

申请号：US14358171

申请日：2012-10-31

Applicant: Akita University

Inventor： Satoru Yoshimura ,  Hitoshi Saito

IPC: G11B5/09 ,  G11B9/00

CPC classification number: G11B5/09 ,  G11B5/64 ,  G11B9/02 ,  G11B11/26 ,  G11B2005/0005

Abstract: An electric field writing magnetic storage device including: a rotatable disk including a substrate and a magnetic recording film provided on a surface of the substrate, the magnetic recording film including at least one ferromagnetic and ferroelectric layer; a writing device writing information into the magnetic recording film by means of an electric field, the writing device including a writing electrode generating a dielectric flux between the writing electrode and the substrate by having electric potential to the substrate; and a writing circuit choosing one electric potential among plurality of electric potential level and applying the chosen one electric potential to the writing electrode in every operation of writing information, wherein the dielectric flux generated according to the electric potential applied to the writing electrode by the writing circuit magnetizes the ferromagnetic and ferroelectric layer in a specific direction.

Abstract translation: 一种电场写入磁存储装置，包括：包括基板的旋转盘和设置在所述基板的表面上的磁记录膜，所述磁记录膜包括至少一个铁磁层和铁电层; 写入装置通过电场将信息写入到磁记录膜中，所述写入装置包括通过向所述基板施加电势而在所述写入电极和所述基板之间产生介电磁通的写入电极; 以及写入电路，其在多个电位电平中选择一个电位，并且在写入信息的每个操作中将所选择的一个电位施加到写入电极，其中根据通过写入施加到写入电极的电位产生的介电通量 电路沿特定方向磁化铁磁层和铁电层。

公开(公告)号：US09482692B2

公开(公告)日：2016-11-01

申请号：US14777667

申请日：2014-03-28

Applicant: AKITA UNIVERSITY ,  OSAKA UNIVERSITY

Inventor： Hitoshi Saito ,  Satoru Yoshimura ,  Yukinori Kinoshita ,  Hikaru Nomura ,  Ryoichi Nakatani

IPC: G01Q60/52 ,  G01Q60/56 ,  G01Q60/50 ,  G01Q60/54

CPC classification number: G01Q60/52 ,  G01Q60/50 ,  G01Q60/54 ,  G01Q60/56

Abstract: A magnetic field measuring device including: a vibrational probe unit having a probe that includes one or more material(s) whose intensity of magnetization is proportionate to an external magnetic field, a mechanical vibration source for the probe; a vibration detector detecting a vibration frequency and amplitude of the probe; an alternating-current magnetic field generator applying to the probe an alternating-current magnetic field; a direct-current external magnetic field generator applying a direct-current external magnetic field to the probe; a frequency modulation detector detecting frequency modulation occurring to the mechanical vibration of the probe; a direct-current external magnetic field controller adjusting the intensity of the direct-current external magnetic field applied to the probe; and a direct-current magnetic field determination unit determining a value of the direct-current magnetic field originating from a specimen.

Abstract translation: 一种磁场测量装置，包括：振动探针单元，其具有探针，所述探针包括其强度与外部磁场成比例的一种或多种材料，所述探针的机械振动源; 检测探头的振动频率和振幅的振动检测器; 交流磁场发生器，向探头施加交流磁场; 将直流外部磁场施加到探针的直流外部磁场发生器; 检测对所述探针的机械振动发生的频率调制的频率调制检测器; 直流外部磁场控制器调节施加到探头的直流外部磁场的强度; 以及直流磁场确定单元，确定源自试样的直流磁场的值。

公开(公告)号：US20140320994A1

公开(公告)日：2014-10-30

申请号：US14358171

申请日：2012-10-31

Applicant: AKITA UNIVERSITY

Inventor： Satoru Yoshimura ,  Hitoshi Saito

IPC: G11B5/09

CPC classification number: G11B5/09 ,  G11B5/64 ,  G11B9/02 ,  G11B11/26 ,  G11B2005/0005

Abstract: An electric field writing magnetic storage device including: a rotatable disk including a substrate and a magnetic recording film provided on a surface of the substrate, the magnetic recording film including at least one ferromagnetic and ferroelectric layer; a writing device writing information into the magnetic recording film by means of an electric field, the writing device including a writing electrode generating a dielectric flux between the writing electrode and the substrate by having electric potential to the substrate; and a writing circuit choosing one electric potential among plurality of electric potential level and applying the chosen one electric potential to the writing electrode in every operation of writing information, wherein the dielectric flux generated according to the electric potential applied to the writing electrode by the writing circuit magnetizes the ferromagnetic and ferroelectric layer in a specific direction.

Abstract translation: 一种电场写入磁存储装置，包括：包括基板的旋转盘和设置在所述基板的表面上的磁记录膜，所述磁记录膜包括至少一个铁磁层和铁电层; 写入装置通过电场将信息写入到磁记录膜中，所述写入装置包括通过向所述基板施加电势而在所述写入电极和所述基板之间产生介电磁通的写入电极; 以及写入电路，其在多个电位电平中选择一个电位，并且在写入信息的每个操作中将所选择的一个电位施加到写入电极，其中根据通过写入施加到写入电极的电位产生的介电通量 电路沿特定方向磁化铁磁层和铁电层。

公开(公告)号：US20140218016A1

公开(公告)日：2014-08-07

申请号：US14347417

申请日：2012-09-25

Applicant: AKITA UNIVERSITY

Inventor： Hitoshi Saito ,  Satoru Yoshimura

IPC: G01N27/72

CPC classification number: G01N27/725 ,  B82Y35/00 ,  G01Q30/04 ,  G01Q60/54 ,  G01R33/0385

Abstract: A magnetic profile measuring device which scans a space where an alternating-current magnetic field exists by a magnetized probe on a tip of a driven cantilever, detects vibration of the cantilever, and generates an image of magnetic field distribution of the space, the device including: the cantilever having the probe equipped on the tip thereof; a driver driving the cantilever; a vibration sensor detecting vibration of the probe wherein the driven vibration of the cantilever is frequency-modulated by the alternating-current magnetic field; a demodulator demodulating from a detection signal of the vibration sensor a magnetic signal corresponding to an alternating-current magnetic field; a scanning mechanism; a data storage storing an initial data for each coordinate of the space; a modified data generator recalling the initial data from the data storage and generating a plurality of data by modifying the phase of the initial data; and an image display device.

Abstract translation: 扫描由驱动悬臂的尖端上的磁化探针存在交流磁场的空间的磁轮廓测量装置检测悬臂的振动，并产生空间的磁场分布图像，该装置包括 ：悬臂，其顶部装有探头; 驾驶悬臂的司机 振动传感器，其检测所述探针的振动，其中所述悬臂的驱动振动由所述交流磁场进行调频; 解调器，根据所述振动传感器的检测信号，对应于交流磁场的磁信号进行解调; 扫描机制; 存储空间的每个坐标的初始数据的数据存储器; 修改后的数据生成器通过修改初始数据的相位来从数据存储器回调初始数据并产生多个数据; 和图像显示装置。