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11. 发明申请

US20080054894A1 MAGNETIC DETECTION DEVICE HAVING ELEMENT PROVIDED WITH MULTI-LAYERED PROTECTION LAYER AND A METHOD OF MANUFACTURING THE SAME 审中-公开
标题翻译：具有多层保护层的元件的磁性检测装置及其制造方法
公开(公告)号：US20080054894A1
公开(公告)日：2008-03-06
申请号：US11678812
申请日：2007-02-26
申请人： Toshio Sasaki , Kiyoshi Sato , Ichiro Tokunaga
发明人： Toshio Sasaki , Kiyoshi Sato , Ichiro Tokunaga
IPC分类号： G01R33/02
CPC分类号： G01R33/093 , B82Y25/00
摘要： The invention provides a magnetic detection device having excellent thermal resistance and water resistance by changing a configuration of layers of an insulating protection layer covering a magnetic detection element. A magnetic detection element is covered with an insulating protection layer, and the insulating protection layer has an alumina layer covering the magnet detection element and a silica layer covering the alumina layer. According to the embodiment, thermal resistance and water resistance can be properly improved, and therefore a magnetic detection device having excellent magnetic sensitivity and a high reliability can be realized without degrading characteristics of the magnetic detection device.
摘要翻译：本发明通过改变覆盖磁检测元件的绝缘保护层的层的结构来提供具有优异的耐热性和耐水性的磁检测装置。磁性检测元件被绝缘保护层覆盖，绝缘保护层具有覆盖磁体检测元件的氧化铝层和覆盖氧化铝层的二氧化硅层。根据本实施方式，可以适当地提高耐热性和耐水性，因此能够实现磁性检测装置的特性降低的磁敏感性和高可靠性的磁检测装置。

12. 发明授权

US07231313B2 Method of calculating compensation value for angle detecting sensor and angle detecting sensor using the method 失效
标题翻译：使用该方法计算角度检测传感器和角度检测传感器补偿值的方法
公开(公告)号：US07231313B2
公开(公告)日：2007-06-12
申请号：US11298883
申请日：2005-12-08
申请人： Yuichi Shonai , Kazuo Hasegawa , Kazuhiko Fujita , Ichiro Tokunaga
发明人： Yuichi Shonai , Kazuo Hasegawa , Kazuhiko Fujita , Ichiro Tokunaga
IPC分类号： G01P3/00
CPC分类号： G01D5/2449 , G01D3/022 , G01D5/24452 , G01D5/2448
摘要： A method of calculating a compensation value for an angle detecting sensor including a sensor unit, a signal converting section, a signal adjusting section, an arithmetic operation section, a memory section, and a compensator includes a first step of generating two signals having a predetermined phase difference from a plurality of output signals; a second step of calculating a rotation angle of an object from the two signals as an output angle before compensation; and a third step of extracting a candidate signal having a minimum residual energy in the signal after removal as the compensation value when a plurality of candidate signals having the same period but different amplitudes has been removed from a total error signal included in the output angle before compensation.
摘要翻译：计算用于包括传感器单元，信号转换部分，信号调节部分，算术运算部分，存储部分和补偿器的角度检测传感器的补偿值的方法包括：产生具有预定的与多个输出信号的相位差; 从所述两个信号计算物体的旋转角度作为补偿前的输出角度的第二步骤; 以及第三步骤，当从包括在输出角度中的总误差信号中去除具有相同周期但具有不同幅度的多个候选信号时，在去除之后的信号中提取具有最小剩余能量的候选信号作为补偿值补偿。

13. 发明申请

US20060214656A1 Angle sensor having low waveform distortion 失效
标题翻译：角度传感器具有低波形失真
公开(公告)号：US20060214656A1
公开(公告)日：2006-09-28
申请号：US11445124
申请日：2006-05-31
申请人： Yoshihiro Sudo , Ichiro Tokunaga , Yoshikazu Shimizu , Naoya Hasegawa , Fumihito Koike
发明人： Yoshihiro Sudo , Ichiro Tokunaga , Yoshikazu Shimizu , Naoya Hasegawa , Fumihito Koike
IPC分类号： G01B7/30
CPC分类号： G01D5/145
摘要： A magnetoresistive element includes a meandering X-axis array that is constituted by X-axis segments alternately connected, and a meandering Y-axis array that is constituted by Y-axis segments alternately connected. When rotated 90°, the Y-axis array has the same layout as the X-axis array. Such a structure cancels the electrical resistance change due to the AMR effect, thus reducing the waveform distortion of output voltage.
摘要翻译：磁阻元件包括由交替连接的X轴段构成的曲折X轴阵列和由交替连接的Y轴分段构成的曲折Y轴阵列。旋转90°时，Y轴阵列的布局与X轴阵列相同。这样的结构抵消了由于AMR效应引起的电阻变化，从而降低了输出电压的波形失真。

14. 发明授权

US5035960A Magnetic recording medium for magnetic encoder 失效
标题翻译：磁性编码器磁记录介质
公开(公告)号：US5035960A
公开(公告)日：1991-07-30
申请号：US219026
申请日：1988-07-14
申请人： Tomoo Kamigaki , Ichiro Tokunaga , Satoshi Yanagita , Koro Hayasaka
发明人： Tomoo Kamigaki , Ichiro Tokunaga , Satoshi Yanagita , Koro Hayasaka
IPC分类号： H01F1/047 , G01D5/245 , G06K19/06 , G11B5/62 , G11B5/64 , G11B5/65 , G11B5/73
CPC分类号： G11B5/7325 , G11B5/64 , Y10S428/90
摘要： A magnetic recording medium for a magnetic encoder which has an alumite magnetic film that magnetic metal is precipitated in pores of porous aluminum oxide film so that the diameter of the pore is 80 to 200 Angstroms and the depth thereof is 3 to 100 microns. Thus, the magnetic recording medium can magnetically record in a high density and can be fabricated inexpensively.
摘要翻译：一种用于磁性编码器的磁记录介质，其具有使多孔氧化铝膜的孔中磁性金属析出的氧化铝磁膜，使孔的直径为80〜200埃，深度为3〜100微米。因此，磁记录介质可以以高密度磁记录并且可以廉价地制造。

15. 发明授权

US3988827A Small-size cutter 失效
标题翻译：小型切割机
公开(公告)号：US3988827A
公开(公告)日：1976-11-02
申请号：US587219
申请日：1975-06-16
申请人： Kaneaki Sakamoto , Ichiro Tokunaga
发明人： Kaneaki Sakamoto , Ichiro Tokunaga
IPC分类号： B23D23/00 , B23D29/00 , B26B15/00 , B23D27/04
CPC分类号： B23D29/002 , B23D23/00
摘要： A small size, portable cutter of steel or other metallic rods or wires including a slide arm having a blade mounted at an outer end, a lever connected with an inner end of the slide arm, and an eccentric cam member rotated from a motor and having a whole cam circumference inscribed with an end section of the lever to form a great contact area for transmitting the driving force to the slide arm which thereby protrudes outwardly the blade to cut a metallic rod or wire in cooperation with a stationary blade fixedly mounted on the body frame.
摘要翻译：一种小尺寸便携式切割机的钢或其他金属棒或线，包括具有安装在外端的叶片的滑动臂，与滑动臂的内端连接的杆以及从马达旋转的偏心凸轮构件，并具有整个凸轮圆周内接有杠杆的端部，以形成用于将驱动力传递到滑动臂的大的接触区域，从而向刀片向外突出以与固定地安装在其上的固定刀片协作地切割金属棒或线身体框架。

16. 发明申请

US20090251830A1 MAGNETIC DETECTOR 审中-公开
标题翻译：磁性探测器
公开(公告)号：US20090251830A1
公开(公告)日：2009-10-08
申请号：US12485000
申请日：2009-06-15
申请人： Koji Kurata , Ichiro Tokunaga
发明人： Koji Kurata , Ichiro Tokunaga
IPC分类号： G11B5/33
CPC分类号： G01R33/09 , B82Y25/00 , G01R33/093
摘要： Magnetoresistive elements each have a layered structure including a pinned magnetic layer having a magnetization direction pinned in one direction, a free magnetic layer with magnetization being variable by an external magnetic field, and a nonmagnetic material layer arranged therebetween. Assuming that a center distance between a N-pole and a S-pole of a permanent magnet is λ, the magnetoresistive elements connected in series are arranged in a direction parallel to a relative movement direction with a center distance λ arranged therebetween. Interfaces in the layers of the layered structure of each of the magnetoresistive elements are orthogonal to a facing surface of the permanent magnet, and are in the relative movement direction. The pinned magnetic layers of the magnetoresistive elements have magnetization directions, all the magnetization directions are orthogonal to the relative movement direction in a plane parallel to the interfaces.
摘要翻译：磁阻元件各自具有分层结构，其包括具有沿一个方向钉扎的磁化方向的钉扎磁性层，具有可由外部磁场变化的磁化的自由磁性层和布置在其间的非磁性材料层。假设永磁体的N极和S极之间的中心距离为λ，则串联连接的磁阻元件沿平行于相对运动方向的方向排列，其间布置有中心距离λ。每个磁阻元件的层状结构层中的接触面与永磁体的相对表面正交，并且处于相对运动方向。磁阻元件的被钉扎的磁性层具有磁化方向，所有的磁化方向与平行于界面的平面中的相对运动方向正交。

17. 发明授权

US06900713B2 Magnetic switch capable of instantaneous switching of an output signal and magnetic sensor 有权
标题翻译：能够瞬时切换输出信号和磁传感器的磁性开关
公开(公告)号：US06900713B2
公开(公告)日：2005-05-31
申请号：US10215735
申请日：2002-08-09
申请人： Masao Kasashima , Ichiro Tokunaga , Hirofumi Okumura , Seiji Kikuchi
发明人： Masao Kasashima , Ichiro Tokunaga , Hirofumi Okumura , Seiji Kikuchi
IPC分类号： G01R33/09 , H01H36/00 , H01L43/08 , H03K17/97 , H01H9/00
CPC分类号： H03K17/97
摘要： A magnetic switch using magnetoresistive elements having respective free layers whose magnetization directions are varied by an external magnetic field. The magnetic switch also has a first magnet and a second magnet that produce respective magnetic fields that serve as the external magnetic field and are different from each other in strength and opposite to each other in direction, and a magnetic shield member whose relative position with respect to the first magnet and the second magnet varies. The magnetic shield member moves between a first position with which both of the magnetic fields of the first magnet and the second magnet act on the magnetoresistive elements to magnetize their free layers in a first direction and a second position with which only one of the magnetic fields of the first magnet and the second magnet acts on the magnetoresistive elements to magnetize their free layers in a second direction that is opposite to the first direction.
摘要翻译：一种使用磁阻元件的磁开关，其具有各自的磁化方向由外部磁场变化的自由层。磁开关还具有第一磁体和第二磁体，其产生用作外部磁场的各自的磁场，并且在强度上彼此不同，并且在方向上彼此相反;以及磁屏蔽构件，其相对位置相对于到第一磁体和第二磁体变化。磁屏蔽构件在第一位置和第二位置之间移动，第一位置与第一磁体和第二磁体两者的磁场作用在磁阻元件上以在第一方向上磁化它们的自由层，而第二位置只有一个磁场第一磁体和第二磁体作用在磁阻元件上以在与第一方向相反的第二方向上磁化其自由层。

18. 发明授权

US06539329B2 Apparatus for detecting rotational angle by employing two or more detection signals based on rotational angle and rotational direction of rotating member 失效
标题翻译：用于通过采用基于旋转构件的旋转角度和旋转方向的两个或更多个检测信号来检测旋转角度的装置
公开(公告)号：US06539329B2
公开(公告)日：2003-03-25
申请号：US09790843
申请日：2001-02-22
申请人： Hironori Kato , Yoshio Sanpei , Toshiyuki Hoshi , Hirofumi Okumura , Ichiro Tokunaga , Toshio Ogawa
发明人： Hironori Kato , Yoshio Sanpei , Toshiyuki Hoshi , Hirofumi Okumura , Ichiro Tokunaga , Toshio Ogawa
IPC分类号： H02P700
CPC分类号： B62D15/0215 , B62D15/02 , G01D5/24409
摘要： A rotational angle detecting apparatus having a rotation detector that outputs, as a rotor coupled to a rotating member rotates, first and second detection signals, which have predetermined amplitudes, the same cycle, and a phase difference of a quarter wavelength, a memory for storing the first and second detection signals, and a control unit. The control unit detects the rotational angle of the rotating member by averaging the amplitudes of the first and second detection signals according to the area in which the first detection signal lies.
摘要翻译：具有旋转检测器的旋转角度检测装置，作为与旋转部件连接的转子，旋转检测装置旋转具有预定振幅的相同周期的第一和第二检测信号以及四分之一波长的相位差，存储器第一和第二检测信号，以及控制单元。控制单元根据第一检测信号所在的区域对第一和第二检测信号的振幅进行平均，来检测旋转构件的旋转角度。

19. 发明授权

US5117319A Magnetic movement sensing device 失效
标题翻译：磁性运动感应装置
公开(公告)号：US5117319A
公开(公告)日：1992-05-26
申请号：US420190
申请日：1989-10-12
申请人： Ichiro Tokunaga
发明人： Ichiro Tokunaga
IPC分类号： G01D5/14 , G01D5/16 , G01D5/245 , G01P13/00 , H01L43/08
CPC分类号： G01D5/145 , G01P13/00 , H01L43/08
摘要： A magnetic sensor for an encoder having tracks arranged alternately with N- and S-poles, comprising two MR thin films arranged at a near interval in the track direction with a direction perpendicular to the tracks as a longitudinal direction, oblique electrode formed obliquely to the longitudinal direction on the magnetoresistance effect detecting magnetic thin films to generate a bias magnetic field of opposite directions parallel to the tracks by a current flowing to the oblique electrodes in the MR thin films, thereby detecting poles arranged at random intervals.
摘要翻译：一种用于编码器的磁传感器，其具有交替地配置有N极和S极的轨道，包括沿轨道方向以近似间隔布置的垂直于作为纵向方向的轨道的两个MR薄膜，倾斜电极在磁阻效应检测磁性薄膜上的长度方向上，通过流过MR薄膜中的倾斜电极的电流产生平行于轨道的相反方向的偏置磁场，从而检测以随机间隔布置的极点。

20. 发明授权

US4959574A Precision Gap Magnetic Encode Device 失效
标题翻译：精密间隙磁编码器
公开(公告)号：US4959574A
公开(公告)日：1990-09-25
申请号：US332640
申请日：1989-03-31
申请人： Hidemasa Suzuki , Ichiro Tokunaga , Hiraku Abe , Yasuaki Ogawa
发明人： Hidemasa Suzuki , Ichiro Tokunaga , Hiraku Abe , Yasuaki Ogawa
IPC分类号： G01D5/245 , G01D5/14 , G01D11/24
CPC分类号： G01D5/142 , G01D11/245 , Y10T29/49004 , Y10T29/4902
摘要： A magnetic rotary encoder device wherein fluctuation of a magnetic gap arising from a change in temperature is minimized, a printed circuit board on which an electric circuit electrically connected to a magnetic sensor is carried can be assembled readily, and a magnetic gap can be adjusted readily. The magnetic encoder device comprises a magnetic scale having thereon a magnetic code which can be detected by a magnetic sensor, a retaining member for securely retaining the magnetic sensor on a sensor mounting element with a magnetic gap left between the magnetic scale and the magnetic sensor, and a supporting member to which the retaining member is secured. A first bonding agent and a second, softer bonding agent secure the supporting member and portions of the sensor mounting element adjacent and remote from the supporting member to each other, respectively.
摘要翻译：一种磁性旋转编码器装置，其中由温度变化引起的磁隙的波动最小化，可以容易地组装与电磁传感器电连接的电路的印刷电路板，并且可以容易地调整磁隙。磁性编码器装置包括具有可由磁性传感器检测的磁性代码的磁性标尺，用于将磁性传感器牢固地保持在传感器安装元件上的保持构件，该传感器安装元件具有留在磁性秤和磁性传感器之间的磁隙，以及支撑构件，保持构件固定到该支撑构件。第一接合剂和第二较软的接合剂分别将支撑构件和传感器安装元件的部分相邻和远离支撑构件彼此固定。

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