公开(公告)号：US4835509A

公开(公告)日：1989-05-30

申请号：US076891

申请日：1987-07-23

申请人： Yoshimi Yoshino ,  Toshikazu Arasuna ,  Kenichi Ao ,  Katsuhiko Ariga ,  Toshikazu Matsushita ,  Ichiro Izawa

发明人： Yoshimi Yoshino ,  Toshikazu Arasuna ,  Kenichi Ao ,  Katsuhiko Ariga ,  Toshikazu Matsushita ,  Ichiro Izawa

IPC分类号： H01L43/08

CPC分类号： H01L43/08

摘要： A potentiometer includes a magnetoresistive element made of ferromagnetic material. A device applies a magnetic field to the magnetoresistive element. An absolute value of the magnetic field applied to the magnetoresistive element is equal to or greater than a saturation magnetic field with respect to the ferromagnetic magnetoresistive element. The magnetic field applying device is movable relative to the magnetoresistive element.

摘要翻译： 电位计包括由铁磁材料制成的磁阻元件。 器件将磁场施加到磁阻元件。 施加到磁阻元件的磁场的绝对值等于或大于相对于铁磁性磁阻元件的饱和磁场。 磁场施加装置可相对于磁阻元件移动。

公开(公告)号：US5005064A

公开(公告)日：1991-04-02

申请号：US233431

申请日：1988-08-18

申请人： Yoshimi Yoshino ,  Kenichi Ao ,  Ichiro Izawa ,  Toshikazu Arasuna

发明人： Yoshimi Yoshino ,  Kenichi Ao ,  Ichiro Izawa ,  Toshikazu Arasuna

IPC分类号： G01R33/09 ,  H01L27/22 ,  H01L43/08

CPC分类号： G01R33/09 ,  H01L27/22 ,  H01L43/08

摘要： According to this invention, a device for detecting magnetism comprises; a substrate, an interposed insulating layer containing impurities therein, formed on the substrate, and a ferromagnetic magnetoresistive element formed on the interposed layer, wherein at least a portion of the interposed layer on which the ferromagnetic magnetoresistive element is formed has a concentration of impurities of less than a predetermined value. Further, in the device of this invention, the surface of the layer interposed between the substrate and the ferromagnetic magnetoresistive element has a surface roughness of less than 120 and an angle between a contacting surface of a conductive wiring and the ferromagnetic magnetoresistive element and the surface of the interposed layer is less than 78 degrees. Therefore, a device wherein a deterioration of the quality film of the ferromagnetic magnetoresistive element can be avoided and a reduction of the ratio of the resistance variation of the ferromagnetic magnetoresistive element can be maintained at less than 10% can be obtained, and further, a device wherein the generation of noise can be effectively suppressed so that the device is highly sensitive to magnetism and has a high S/N ratio, and further, the breakdown ratio caused by wiring breakages is effectively reduced, can be obtained.

公开(公告)号：US07112959B2

公开(公告)日：2006-09-26

申请号：US11213763

申请日：2005-08-30

申请人： Ichiro Izawa ,  Hiroshi Okada

发明人： Ichiro Izawa ,  Hiroshi Okada

IPC分类号： G01B7/30 ,  H03D13/00

CPC分类号： G01D5/24476 ,  G01P3/4802 ,  G01P3/488

摘要： The comparator circuit includes an amplifier amplifying a voltage signal inputted from outside, a voltage dividing circuit dividing down a power supply voltage supplied from outside, thereby producing a reference voltage, a waveform dull circuit dulling the reference voltage, and a comparator comparing a voltage of the input voltage signal amplified by the amplifier with the reference voltage dulled by the waveform dull circuit.

摘要翻译： 比较器电路包括放大从外部输入的电压信号的放大器，分压从外部供给的电源电压的分压电路，从而产生参考电压，使基准电压变钝的波形钝化电路，以及比较电压 由放大器放大的输入电压信号，其参考电压由波形钝化电路消隐。

公开(公告)号：US6020736A

公开(公告)日：2000-02-01

申请号：US511621

申请日：1995-08-07

申请人： Seiki Aoyama ,  Yasuaki Makino ,  Susumu Kuroyanagi ,  Izuru Shoji ,  Ichiro Izawa

发明人： Seiki Aoyama ,  Yasuaki Makino ,  Susumu Kuroyanagi ,  Izuru Shoji ,  Ichiro Izawa

IPC分类号： G01B7/30 ,  G01B7/00 ,  G01D5/14 ,  G01D5/16 ,  G01D5/18 ,  G01D5/245 ,  G01P3/488 ,  H01L43/08

CPC分类号： G01D5/147 ,  G01P3/488

摘要： A rotation object is made of a magnetic material and disposed within a predetermined range of an angle of rotation on a plane perpendicular to an axis of rotation. A bias magnet generates a bias magnetic field to the rotation body in a direction perpendicular to the axis of rotation. Magnetic resistance elements are disposed in the bias magnetic field on a plane including the axis of rotation at a position deviated from the position of the rotation object in the axial direction of the rotation body and inclined by about 45.degree. relative to a direction perpendicular to the axis of rotation.

摘要翻译： 旋转物体由磁性材料制成，并且设置在垂直于旋转轴线的平面上的旋转角度的预定范围内。 偏置磁体在垂直于旋转轴线的方向上向旋转体产生偏置磁场。 磁阻元件设置在包括旋转轴在旋转体的轴向方向上偏离旋转体的位置的旋转轴的平面上，并相对于垂直于旋转体的方向倾斜约45°的偏置磁场 旋转轴。

公开(公告)号：US20060043966A1

公开(公告)日：2006-03-02

申请号：US11213763

申请日：2005-08-30

申请人： Ichiro Izawa ,  Hiroshi Okada

发明人： Ichiro Izawa ,  Hiroshi Okada

IPC分类号： G01B7/30

CPC分类号： G01D5/24476 ,  G01P3/4802 ,  G01P3/488

摘要： The comparator circuit includes an amplifier amplifying a voltage signal inputted from outside, a voltage dividing circuit dividing down a power supply voltage supplied from outside, thereby producing a reference voltage, a waveform dull circuit dulling the reference voltage, and a comparator comparing a voltage of the input voltage signal amplified by the amplifier with the reference voltage dulled by the waveform dull circuit.

公开(公告)号：US5729127A

公开(公告)日：1998-03-17

申请号：US527200

申请日：1995-09-12

申请人： Tatsuo Tamura ,  Kenji Yagi ,  Yasuaki Makino ,  Ichiro Izawa

发明人： Tatsuo Tamura ,  Kenji Yagi ,  Yasuaki Makino ,  Ichiro Izawa

IPC分类号： G01D5/14 ,  G01D5/16 ,  G01D5/244 ,  G01D5/245 ,  G01P3/481 ,  G01P3/488 ,  G01P13/04 ,  G01B7/30 ,  G01R33/06

CPC分类号： G01D5/147 ,  G01D5/24438 ,  G01P3/481 ,  G01P3/488

摘要： In a magnetism detecting apparatus, a magnetoresistance element is positioned adjacent to a gear with teeth to be responsive to magnetic field applied thereto. The gear is shaped such that each of the teeth satisfies SA/(SA+SB)

摘要翻译： 在磁检测装置中，磁阻元件邻近具有齿的齿轮定位，以响应于施加到其上的磁场。 齿轮成形为使得每个齿满足SA /（SA + SB）<0.125，其中SA表示每个齿的末端部分的横截面面积，该尖端部分通过10％的高度 每个齿从每个齿的尖端获取，SB表示齿之间的每个切口的切口部分的横截面面积，该切口部分具有与齿的高度相对应的高度。 作为这种配置的结果，可以消除基于来自磁阻元件的高和低阈值的输出信号中包含的失真。 此外，即使当齿轮齿和磁阻元件之间的距离变化时，也可以减小通过执行波形整形操作而获得的脉冲信号的间隔的变化。

公开(公告)号：US5637995A

公开(公告)日：1997-06-10

申请号：US407999

申请日：1995-03-21

申请人： Ichiro Izawa ,  Yasuaki Makino ,  Susumu Kuroyanagi ,  Seiki Aoyama ,  Shigehiro Kasumi ,  Kenji Yagi ,  Kazuo Kajimoto ,  Masaki Takashima ,  Shinichi Konda

发明人： Ichiro Izawa ,  Yasuaki Makino ,  Susumu Kuroyanagi ,  Seiki Aoyama ,  Shigehiro Kasumi ,  Kenji Yagi ,  Kazuo Kajimoto ,  Masaki Takashima ,  Shinichi Konda

IPC分类号： G01D5/14 ,  G01P3/488 ,  G01R33/09 ,  G01P3/487 ,  G01B7/14

CPC分类号： G01D5/145 ,  G01P3/488 ,  G01R33/09

摘要： A magnetic detection device including a biasing magnet for generating a bias magnetic field directed to an object of detection having a magnetic material; a magnetoresistance effective element disposed at an inclination of about 45.degree. to the direction of the bias magnetic field to provide a change in resistance caused by the bias magnetic field in accordance with movement of the object of detection, so as to detect a change in state of the bias magnetic field via the change in resistance of the magnetoresistance effective element; and the biasing magnet having a hollow portion containing a holder for holding the magnetoresistance effective element in a position between a surface of the biasing magnet and the object of detection and close to the surface of the biasing element.

摘要翻译： 一种磁检测装置，包括用于产生指向具有磁性材料的检测对象的偏置磁场的偏置磁体; 磁阻有效元件以与偏置磁场方向成大约45度的倾斜度设置，以根据检测对象的移动来提供由偏置磁场引起的电阻变化，从而检测状态的变化 通过磁阻有效元件的电阻变化来产生偏置磁场; 所述偏置磁体具有中空部，所述中空部包含用于将所述磁阻有效元件保持在所述偏置磁体的表面与所述检测体之间并且靠近所述偏置元件的表面的位置的保持器。