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    Magnetic sensing element, magnetic sensor, and its manufacturing method
    1.
    发明授权
    Magnetic sensing element, magnetic sensor, and its manufacturing method 失效
    磁传感元件，磁传感器及其制造方法

    公开(公告)号：US07183767B2

    公开(公告)日：2007-02-27

    申请号：US10506556

    申请日：2003-03-24

    申请人： Sayuri Muramatsu ,  Ken Takahashi ,  Yoshihiro Tosaki ,  Akio Murata

    发明人： Sayuri Muramatsu ,  Ken Takahashi ,  Yoshihiro Tosaki ,  Akio Murata

    IPC分类号： G01R33/02 ,  G01R33/00

    CPC分类号： G01R33/02

    摘要： A conductive wire held between a first magnetic core of a soft magnetic film and a second magnetic core, the area of the cross-section, perpendicular to a magnetic path, of which is made partially smaller constitutes a magnetic detection device, and a DC current for generating a DC bias magnetic field and a high-frequency carrier signal are let to flow through the conductive wire. The DC current is selected so that the portion at which the cross-sectional area of the above-mentioned second magnetic core is made smaller has an appropriate DC bias magnetic field intensity. When this magnetic detection device is placed in an external magnetic field, the intensity of the DC bias magnetic field changes depending on the intensity of the external magnetic field; hence, the level of the carrier signal in the conductive wire changes. The change of the level of the carrier signal is output as the change of an electrical signal, whereby the intensity and direction of the magnetic field are detected.

    摘要翻译： 保持在软磁性膜的第一磁芯和第二磁芯之间的导线，垂直于磁路的横截面的面积部分较小构成磁检测装置，并且DC电流 用于产生DC偏置磁场和高频载波信号使其流过导线。 选择直流电流使得使上述第二磁芯的横截面积减小的部分具有适当的DC偏置磁场强度。 当该磁检测装置被置于外部磁场中时，直流偏置磁场的强度根据外部磁场的强度而变化; 因此，导线中的载波信号的电平变化。 输出载波信号电平的变化作为电信号的变化，由此检测磁场的强度和方向。

    Magnetic sensor having a closed magnetic path formed by soft magnetic films
    2.
    发明授权
    Magnetic sensor having a closed magnetic path formed by soft magnetic films 失效
    具有由软磁膜形成的闭合磁路的磁传感器

    公开(公告)号：US07145331B2

    公开(公告)日：2006-12-05

    申请号：US10478136

    申请日：2002-07-15

    申请人： Akio Kuroe ,  Sayuri Muramatsu ,  Akio Murata ,  Ken Takahashi ,  Yoshihiro Tosaki

    发明人： Akio Kuroe ,  Sayuri Muramatsu ,  Akio Murata ,  Ken Takahashi ,  Yoshihiro Tosaki

    IPC分类号： G01R33/02

    CPC分类号： G11B5/332 ,  G01R33/02 ,  G11B5/335 ,  Y10T29/49002 ,  Y10T428/1171

    摘要： In order to obtain a magneto-impedance type magnetic sensor having a soft magnetic film facing to a conductive nonmagnetic film, and available a large impedance change with a carrier signal at a relatively low frequency, the magnetic sensor comprises a meander type conductive nonmagnetic thin film of zigzag shape formed with at least one pair of electrode terminals at both ends and a soft magnetic film which is strip-shaped so as to face thereto at a plurality of regions and has an easy axis of magnetization in a width direction of the strip shape, a high frequency carrier signal is applied to the above-mentioned electrode terminals and further a direct current bias magnetic field is applied. By performing AM detection of an AM modulation signal output from the above-mentioned electrode terminals, an impedance change of the conductive nonmagnetic film which is changed by external magnetic field is detected as a change of the high frequency carrier signal, thereby the external magnetic field can be detected.

    摘要翻译： 为了获得具有面向导电非磁性膜的软磁性膜的磁阻型磁传感器，并且以较低频率的载波信号具有较大的阻抗变化，磁传感器包括弯曲型导电非磁性薄膜 在两端形成有至少一对电极端子的锯齿形状，以及在多个区域呈带状的软磁性膜，并且在带状的宽度方向上具有容易的磁化轴 ，向上述电极端子施加高频载波信号，并施加直流偏置磁场。 通过对从上述电极端子输出的AM调制信号进行AM检测，检测由外部磁场变化的导电性非磁性膜的阻抗变化，作为高频载波信号的变化，由此外部磁场 可以检测。

    Magnetic sensing element magnetic sensor and its manufacturing method
    3.
    发明申请
    Magnetic sensing element magnetic sensor and its manufacturing method 失效
    磁传感元件磁传感器及其制造方法

    公开(公告)号：US20050179431A1

    公开(公告)日：2005-08-18

    申请号：US10506556

    申请日：2003-03-24

    申请人： Sayuri Muramatsu ,  Ken Takahashi ,  Yoshihiro Tosaki ,  Akio Murata

    发明人： Sayuri Muramatsu ,  Ken Takahashi ,  Yoshihiro Tosaki ,  Akio Murata

    IPC分类号： G01R33/02 ,  G01R33/00

    CPC分类号： G01R33/02

    摘要： A conductive wire held between a first magnetic core of a soft magnetic film and a second magnetic core, the area of the cross-section, perpendicular to a magnetic path, of which is made partially smaller constitutes a magnetic detection device, and a DC current for generating a DC bias magnetic field and a high-frequency carrier signal are let to flow through the conductive wire. The DC current is selected so that the portion at which the cross-sectional area of the above-mentioned second magnetic core is made smaller has an appropriate DC bias magnetic field intensity. When this magnetic detection device is placed in an external magnetic field, the intensity of the DC bias magnetic field changes depending on the intensity of the external magnetic field; hence, the level of the carrier signal in the conductive wire changes. The change of the level of the carrier signal is output as the change of an electrical signal, whereby the intensity and direction of the magnetic field are detected.

    摘要翻译： 保持在软磁性膜的第一磁芯和第二磁芯之间的导线，垂直于磁路的横截面的面积部分较小构成磁检测装置，并且DC电流 用于产生DC偏置磁场和高频载波信号使其流过导线。 选择直流电流使得使上述第二磁芯的横截面积减小的部分具有适当的DC偏置磁场强度。 当该磁检测装置被置于外部磁场中时，直流偏置磁场的强度根据外部磁场的强度而变化; 因此，导线中的载波信号的电平变化。 输出载波信号电平的变化作为电信号的变化，由此检测磁场的强度和方向。

    Magnetic head installed on a rotary drum and method for adjusting the head height
    5.
    发明授权
    Magnetic head installed on a rotary drum and method for adjusting the head height 失效
    安装在旋转鼓上的磁头和调节头部高度的方法

    公开(公告)号：US5537276A

    公开(公告)日：1996-07-16

    申请号：US430307

    申请日：1995-04-28

    申请人： Hideaki Mukae ,  Masaru Higashionji ,  Akio Murata ,  Takaaki Maegawa

    发明人： Hideaki Mukae ,  Masaru Higashionji ,  Akio Murata ,  Takaaki Maegawa

    IPC分类号： G11B5/53 ,  G11B5/56 ,  G11B21/02

    CPC分类号： G11B5/56 ,  G11B5/53

    摘要： A head height adjustment method is for adjusting the height of a magnetic head chip fixed to a free end of an elongated head base extending from a rotary drum. The elongated head base has an intermediate portion bent at first and second restricted areas. A laser beam is emitted on one surface of the elongated head base for bending the elongated head base at the first restricted area to enfold along the first restricted area. Another laser beam is emitted on another surface of the elongated head base, off alignment from said first restricted area, for bending the elongated head base at the second restricted area to enfold along the second restricted area. Thus, opposite end portions of the elongated head base extend parallel to each other, but at different levels.

    摘要翻译： 头部高度调节方法用于调节固定到从旋转鼓延伸的细长头部基座的自由端的磁头芯片的高度。 细长头座具有在第一和第二限制区域弯曲的中间部分。 激光束在细长头基座的一个表面上发射，以在第一受限区域弯曲细长的头座基部，沿着第一限制区域包围。 另一激光束在细长头基座的另一表面上被排出，与所述第一受限区域对齐，用于在第二受限区域弯曲细长头座以沿着第二限制区域包围。 因此，细长头基部的相对端部彼此平行延伸，但是处于不同的水平。

    Head height adjustment method including a synchronized rotating laser beam optical axis
    6.
    发明授权
    Head height adjustment method including a synchronized rotating laser beam optical axis 失效
    头部高度调整方法，包括同步旋转激光束光轴

    公开(公告)号：US5347415A

    公开(公告)日：1994-09-13

    申请号：US44775

    申请日：1993-04-12

    申请人： Akio Murata ,  Takaaki Maegawa ,  Hideaki Mukae ,  Masaru Higashionji

    发明人： Akio Murata ,  Takaaki Maegawa ,  Hideaki Mukae ,  Masaru Higashionji

    IPC分类号： G11B5/53 ,  G11B5/58 ,  G11B21/24

    CPC分类号： G11B5/53

    摘要： In a magnetic recording and/or reproducing apparatus, it is necessary to adjust the height of each of a plurality of magnetic heads carried by a rotary cylinder for movement together therewith. This adjustment is accomplished by rotating an optical axis of a laser beam emitted from a laser oscillator in synchronism with the rotary cylinder so that the optical axis is always maintained stationary relative to the magnetic head. The laser beam is subsequently irradiated to a head base in the proximity of a head chip secured to the head base, thereby adjusting the head height during rotation of the rotary cylinder.

    摘要翻译： 在磁记录和/或再现装置中，需要调整由旋转圆筒携带的多个磁头中的每一个的高度一起移动。 这种调整是通过旋转与激光振荡器发射的激光束的光轴与旋转圆筒同步旋转来实现的，使得光轴总是保持相对于磁头静止。 随后将激光束照射到固定在头基座上的头部芯片附近的头部底座，从而在旋转圆筒旋转期间调节头部高度。

    Magnetic sensing apparatus having a central core with wire therethrough
    8.
    再颁专利
    Magnetic sensing apparatus having a central core with wire therethrough 失效
    磁感测装置具有中心芯，其中穿过其中的导线

    公开(公告)号：USRE38594E1

    公开(公告)日：2004-09-21

    申请号：US10016151

    申请日：2001-11-02

    申请人： Akio Murata ,  Akio Kuroe ,  Sayuri Muramatsu

    发明人： Akio Murata ,  Akio Kuroe ,  Sayuri Muramatsu

    IPC分类号： G11B517

    CPC分类号： G11B5/00 ,  G11B5/012 ,  G11B5/03 ,  G11B5/1278 ,  G11B5/74 ,  G11B2005/0029

    摘要： A magnetic head sensing apparatus includes a first, second and third magnetic core of a soft magnetic film formed by a thin film forming method. One end of the first and second magnetic core face a magnetic recording medium and are disposed with a predetermined distance therebetween field. The third magnetic core is disposed between the first and second magnetic cores. A conductive coil is wound around the third magnetic core. A conductive wire passes through the third magnetic core and is insulated therefrom. A DC-biased high-frequency constant current flows through the conductive wire to reproduce information recorded on the magnetic recording medium. Also, a recording signal is applied to the conductive coil sense the magnetic field.

    Data transmission method by polling and terminal apparatus for use in the method
    9.
    发明授权
    Data transmission method by polling and terminal apparatus for use in the method 失效
    通过轮询和终端设备的数据传输方法用于该方法

    公开(公告)号：US06349102B1

    公开(公告)日：2002-02-19

    申请号：US09035907

    申请日：1998-03-06

    申请人： Tomoki Shibasaki ,  Akio Murata

    发明人： Tomoki Shibasaki ,  Akio Murata

    IPC分类号： H04J314

    CPC分类号： H04L61/2053 ,  G06K17/0022 ,  H04L12/4015 ,  H04L12/403 ,  H04L29/12254 ,  H04L29/12273 ,  H04L29/12311 ,  H04L29/1232 ,  H04L61/2038 ,  H04L61/2084 ,  H04L61/2092

    摘要： A data transmission method in which a transmission request is forwarded from a host apparatus to a terminal apparatus. When receiving the transmission request, the terminal apparatus forwards as communication request to the host apparatus. In this communication request, a timer value of asa system timer included in the terminal apparatus is incorporated. Having received the communication request including the timer value, the host apparatus establishes an ID for the terminal apparatus according to the timer value. Then, the host apparatus conducts polling for collecting data from the terminal apparatus using the established ID.

    摘要翻译： 一种数据传输方法，其中发送请求从主机装置转发到终端装置。 当接收到发送请求时，终端装置作为通信请求转发给主机装置。 在该通信请求中，并入包含在终端装置中的系统定时器的定时器值。 在接收到包括定时器值的通信请求之后，主机设备根据定时器值建立终端设备的ID。 然后，主机装置使用建立的ID进行从终端装置收集数据的轮询。