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1. 发明授权

US06175296B1 Potentiometer provided with giant magnetoresistive effect elements 有权
标题翻译：电位器配有巨磁阻效应元件
公开(公告)号：US06175296B1
公开(公告)日：2001-01-16
申请号：US09353293
申请日：1999-07-12
申请人： Ichirou Tokunaga , Seiji Kikuchi , Yoshito Sasaki , Takashi Hatanai
发明人： Ichirou Tokunaga , Seiji Kikuchi , Yoshito Sasaki , Takashi Hatanai
IPC分类号： H01L4300
CPC分类号： G01D5/145
摘要： The potentiometer of the present invention includes at least a pair of giant magnetoresistive effect elements, in which the giant magnetoresistive effect elements to be paired are formed on a substrate in a state that the elements are connected mutually electrically with the orientations of magnetization axes of the pinned magnetic layers facing 180° opposite each other, and a magnetic coding member is rotatably provided to face the giant magnetoresistive effect elements on the substrate, the magnetic coding member is disposed in such a manner that the center of rotation of the magnetic coding member passes through an intermediate position of the giant magnetoresistive effect elements to be paired, and the magnetic coding member has at least two magnetic poles formed along the direction of rotation of itself.
摘要翻译：本发明的电位计包括至少一对巨磁阻效应元件，其中要成对的巨磁电阻效应元件以这样的状态形成在基板上，即元件与电磁轴线的方向相互电连接被固定的磁性层相对于彼此相对的180°，并且磁性编码构件可旋转地设置成面对基板上的巨磁阻效应元件，磁编码构件以这样的方式设置，使得磁编码构件的旋转中心通过通过要成对的巨磁阻效应元件的中间位置，并且磁编码构件具有沿其自身旋转方向形成的至少两个磁极。

2. 发明授权

US06496003B1 Magnetic displacement detecting device having linear changing magnetic field over the length of the service 失效
标题翻译：具有在服务长度上的线性变化磁场的磁位移检测装置
公开(公告)号：US06496003B1
公开(公告)日：2002-12-17
申请号：US09635347
申请日：2000-08-09
申请人： Hirofumi Okumura , Ichirou Tokunaga
发明人： Hirofumi Okumura , Ichirou Tokunaga
IPC分类号： G01B714
CPC分类号： G01V3/081 , G01D5/145
摘要： A magnet is provided on a detection member that moves on a straight line. A Hall element serving as a magneto-electric element is provided on a fixed member that opposes the magnet. A surface of the magnet that opposes the Hall element is formed into a radius or trapezoidal shape. With this arrangement, linear outputs can be obtained at any rotational angles even when a rotator rotates a plurality of times.
摘要翻译：在直线上移动的检测部件上设置有磁铁。用作磁电元件的霍尔元件设置在与磁体相对的固定构件上。与霍尔元件相对的磁体表面形成为半圆形或梯形。利用这种布置，即使当旋转器旋转多次时，也可以以任何旋转角度获得线性输出。

3. 发明授权

US06329818B1 Magnetic field sensor having giant magnetoresistive effect elements, manufacturing method and apparatus therefor 有权
标题翻译：具有巨磁阻效应元件的磁场传感器，其制造方法和装置
公开(公告)号：US06329818B1
公开(公告)日：2001-12-11
申请号：US09353925
申请日：1999-07-14
申请人： Ichirou Tokunaga , Seiji Kikuchi , Yoshito Sasaki , Takashi Hatanai
发明人： Ichirou Tokunaga , Seiji Kikuchi , Yoshito Sasaki , Takashi Hatanai
IPC分类号： G01R3309
CPC分类号： B82Y25/00 , G01R33/093 , Y10S428/90
摘要： The present invention is characterized in that a first giant magnetoresistive effect element and a second giant magnetoresistive effect element are provided along a first straight line with the magnetization of the pinned magnetic layer c oriented in a fixed direction, and that a third giant magnetoresistive effect element and a fourth giant magnetoresistive effect element are provided along a second straight line, which is parallel to the first straight line, with the magnetization of the pinned magnetic layer oriented 180° opposite to the directions of magnetization of the pinned magnetic layers in the first and second giant magnetoresistive effect elements.
摘要翻译：本发明的特征在于沿着第一直线提供第一巨磁阻效应元件和第二巨磁阻效应元件，其中固定磁性层c的磁化沿固定方向取向，并且第三巨磁阻效应元件并且沿着与第一直线平行的第二直线设置第四巨磁阻效应元件，其中被钉扎的磁性层的磁化与第一和第二直线的被钉扎的磁性层的磁化方向相反地定向成180° 第二巨磁阻效应元素。

4. 发明授权

US06456065B2 Device for detecting the rotational angle of a rotary member 失效
标题翻译：用于检测旋转构件的旋转角度的装置
公开(公告)号：US06456065B2
公开(公告)日：2002-09-24
申请号：US09731508
申请日：2000-12-07
申请人： Toshiyuki Hoshi , Hironori Kato , Yoshio Sanpei , Hirofumi Okumura , Ichirou Tokunaga , Toshio Ogawa
发明人： Toshiyuki Hoshi , Hironori Kato , Yoshio Sanpei , Hirofumi Okumura , Ichirou Tokunaga , Toshio Ogawa
IPC分类号： G01B730
CPC分类号： B62D15/02 , G01D3/08
摘要： A rotational angle detecting device includes a rotation detecting section for outputting sinusoidal first and second detection signals as a result of the rotation of a rotor connected to a rotary member, a storage section for updating and storing the first and second detection signals, and a controlling section. The first and second detection signals have constant amplitudes, have the same periods, and have wavelengths which are output of phase. The controlling section compares the amplitude values of most recent first and second detection signals output from the rotation detecting section, and determines whether or not the amplitude values fall within proper ranges. When the controlling section determines that they fall within the proper ranges, a piece of detection information which is created based on the most recent first and second detection signals is supplied to a controller. On the other hand, when the controlling section determines that they do not fall within the proper ranges, the controlling section destroys the most recent first and second detection signals, and does not supply detection information to the controller. The invention provides a rotational angle detecting device for performing required controlling operations using detection signals output from the rotational detecting section which have been determined as being proper detection signals.
摘要翻译：旋转角度检测装置包括旋转检测部分，用于输出连接到旋转部件的转子旋转的正弦曲线第一和第二检测信号，用于更新和存储第一和第二检测信号的存储部分，以及控制部分。第一和第二检测信号具有恒定的幅度，具有相同的周期，并且具有相位输出的波长。控制部分比较从旋转检测部分输出的最近的第一和第二检测信号的振幅值，并确定振幅值是否在适当范围内。当控制部分确定它们落在适当范围内时，基于最近的第一和第二检测信号创建的一条检测信息被提供给控制器。另一方面，当控制部判定为不在适当的范围内时，控制部破坏最近的第一和第二检测信号，不向控制器提供检测信息。本发明提供了一种旋转角检测装置，用于使用已被确定为适当的检测信号的从旋转检测部分输出的检测信号来执行所需的控制操作。

5. 发明授权

US06452382B1 Encoder provided with giant magnetoresistive effect elements 失效
标题翻译：编码器提供巨型磁阻效应元件
公开(公告)号：US06452382B1
公开(公告)日：2002-09-17
申请号：US09352170
申请日：1999-07-12
申请人： Ichirou Tokunaga , Seiji Kikuchi , Yoshito Sasaki , Takashi Hatanai
发明人： Ichirou Tokunaga , Seiji Kikuchi , Yoshito Sasaki , Takashi Hatanai
IPC分类号： G01B730
CPC分类号： G01D5/145 , G01B7/30
摘要： The encoder of the present invention includes at least a pair of giant magnetoresistive effect elements, in which the giant magnetoresistive effect elements to be paired are formed on a substrate in a state that the elements are connected mutually electrically with the orientations of magnetization axes of the pinned magnetic layers each facing the same direction in parallel, a magnetic coding member is rotatably supported to face the giant magnetoresistive effect elements on the substrate, and the magnetic coding member has a plurality of magnetic poles formed along the direction of rotation of itself.
摘要翻译：本发明的编码器包括至少一对巨磁阻效应元件，其中要成对的巨磁阻效应元件以这样的状态形成在基片上，即元件与每个面向相同方向并联的固定磁性层，磁性编码构件被可旋转地支撑以面对基板上的巨磁阻效应元件，并且磁编码构件具有沿其自身旋转方向形成的多个磁极。

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