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公开(公告)号：US20140236028A1
公开(公告)日：2014-08-21
申请号：US14261917
申请日：2014-04-25
发明人： Hiromi Yuasa , Hideaki Fukuzawa , Yoshihiko Fuji , Alexander Devin Giddings , Michiko Hara , Shuichi Murakami
摘要： A blood-pressure sensor includes a substrate, a first electrode, a magnetization fixed layer, a nonmagnetic layer, a magnetization free layer, and a second electrode. The substrate is bent to generate a tensile stress at least in a first direction. The first electrode is provided on the substrate. The magnetization fixed layer has magnetization to be fixed in a second direction, and is provided on the substrate. The nonmagnetic layer is provided on the magnetization fixed layer. The magnetization free layer has a magnetization direction which is different from the first direction and from a direction perpendicular to the first direction. The second electrode is provided on the magnetization free layer.
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公开(公告)号：US09131856B2
公开(公告)日：2015-09-15
申请号：US14219860
申请日：2014-03-19
发明人： Alexander Devin Giddings , Hideaki Fukuzawa , Yoshihiko Fuji , Hiromi Yuasa , Michiko Hara , Shuichi Murakami
CPC分类号： A61B5/021 , A61B5/02108 , G01B7/24 , G01L1/125
摘要： A strain sensor element comprises a laminated film which has a magnetic free layer, a spacer layer, and a magnetic reference layer. The free layer has a variable magnetization direction and a out-of-plane magnetization direction. The reference layer has a variable magnetization direction which is pinned more strongly than the magnetization of the free layer. The spacer layer provided between the free layer and the reference layer. A pair of electrodes is provided with a plane of the laminated film. A substrate is provided with either of the pair electrodes and can be strained. The rotation angle of the magnetization of the free layer is different from the rotation angle of the magnetization of the reference layer when the substrate is distorted. Electrical resistance is changed depending on the magnetization angle between the free layer and the reference layer, which allows the element to operate as a strain sensor.
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公开(公告)号：US10342439B2
公开(公告)日：2019-07-09
申请号：US15974030
申请日：2018-05-08
发明人： Alexander Devin Giddings , Hideaki Fukuzawa , Yoshihiko Fuji , Hiromi Yuasa , Michiko Hara , Shuichi Murakami
摘要： A strain sensor element comprises a laminated film which has a magnetic free layer, a spacer layer, and a magnetic reference layer. The free layer has a variable magnetization direction and a out-of-plane magnetization direction. The reference layer has a variable magnetization direction which is pinned more strongly than the magnetization of the free layer. The spacer layer provided between the free layer and the reference layer. A pair of electrodes is provided with a plane of the laminated film. A substrate is provided with either of the pair electrodes and can be strained. The rotation angle of the magnetization of the free layer is different from the rotation angle of the magnetization of the reference layer when the substrate is distorted. Electrical resistance is changed depending on the magnetization angle between the free layer and the reference layer, which allows the element to operate as a strain sensor.
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公开(公告)号：US20170238820A1
公开(公告)日：2017-08-24
申请号：US15483443
申请日：2017-04-10
发明人： Hiromi YUASA , Hideaki Fukuzawa , Yoshihiko Fuji , Alexander Devin Giddings , Michiko Hara , Shuichi Murakami
CPC分类号： A61B5/02141 , A61B5/0004 , A61B5/021 , A61B5/6824 , A61B5/6833 , A61B2560/0214 , A61B2562/028 , G01L9/16 , G01L19/06 , G01L19/069
摘要： A blood-pressure sensor includes a substrate, a first electrode, a magnetization fixed layer, a nonmagnetic layer, a magnetization free layer, and a second electrode. The substrate is bent to generate a tensile stress at least in a first direction. The first electrode is provided on the substrate. The magnetization fixed layer has magnetization to be fixed in a second direction, and is provided on the substrate. The nonmagnetic layer is provided on the magnetization fixed layer. The magnetization free layer has a magnetization direction which is different from the first direction and from a direction perpendicular to the first direction. The second electrode is provided on the magnetization free layer.
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公开(公告)号：US09999356B2
公开(公告)日：2018-06-19
申请号：US14813783
申请日：2015-07-30
发明人： Alexander Devin Giddings , Hideaki Fukuzawa , Yoshihiko Fuji , Hiromi Yuasa , Michiko Hara , Shuichi Murakami
CPC分类号： A61B5/021 , A61B5/02108 , G01B7/24 , G01L1/125
摘要： A strain sensor element comprises a laminated film which has a magnetic free layer, a spacer layer, and a magnetic reference layer. The free layer has a variable magnetization direction and a out-of-plane magnetization direction. The reference layer has a variable magnetization direction which is pinned more strongly than the magnetization of the free layer. The spacer layer provided between the free layer and the reference layer. A pair of electrodes is provided with a plane of the laminated film. A substrate is provided with either of the pair electrodes and can be strained. The rotation angle of the magnetization of the free layer is different from the rotation angle of the magnetization of the reference layer when the substrate is distorted. Electrical resistance is changed depending on the magnetization angle between the free layer and the reference layer, which allows the element to operate as a strain sensor.
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公开(公告)号：US20150338292A1
公开(公告)日：2015-11-26
申请号：US14813783
申请日：2015-07-30
发明人： Alexander Devin Giddings , Hideaki Fukuzawa , Yoshihiko Fuji , Hiromi Yuasa , Mlchiko Hara , Shuichi Murakami
CPC分类号： A61B5/021 , A61B5/02108 , G01B7/24 , G01L1/125
摘要： A strain sensor element comprises a laminated film which has a magnetic free layer, a spacer layer, and a magnetic reference layer. The free layer has a variable magnetization direction and a out-of-plane magnetization direction. The reference layer has a variable magnetization direction which is pinned more strongly than the magnetization of the free layer. The spacer layer provided between the free layer and the reference layer. A pair of electrodes is provided with a plane of the laminated film. A substrate is provided with either of the pair electrodes and can be strained. The rotation angle of the magnetization of the free layer is different from the rotation angle of the magnetization of the reference layer when the substrate is distorted. Electrical resistance is changed depending on the magnetization angle between the free layer and the reference layer, which allows the element to operate as a strain sensor.
摘要翻译： 应变传感器元件包括具有无磁性层，间隔层和磁性参考层的层压膜。 自由层具有可变的磁化方向和面外磁化方向。 参考层具有可变的磁化方向，该自由层的磁化强度比自由层的磁化强。 间隔层设置在自由层和参考层之间。 一对电极设置有层叠膜的平面。 基板设置有对电极中的任一个并且可以变形。 当衬底失真时，自由层的磁化的旋转角度与参考层的磁化的旋转角度不同。 电阻根据自由层和参考层之间的磁化角度而改变，这允许元件作为应变传感器工作。
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公开(公告)号：US09066661B2
公开(公告)日：2015-06-30
申请号：US14219878
申请日：2014-03-19
发明人： Alexander Devin Giddings , Hideaki Fukuzawa , Yoshihiko Fuji , Hiromi Yuasa , Mlchiko Hara , Shuichi Murakami
CPC分类号： A61B5/021 , A61B5/02108 , G01B7/24 , G01L1/125
摘要： A strain sensor element comprises a laminated film which has a magnetic free layer, a spacer layer, and a magnetic reference layer. The free layer has a variable magnetization direction and a out-of-plane magnetization direction. The reference layer has a variable magnetization direction which is pinned more strongly than the magnetization of the free layer. The spacer layer provided between the free layer and the reference layer. A pair of electrodes is provided with a plane of the laminated film. A substrate is provided with either of the pair electrodes and can be strained. The rotation angle of the magnetization of the free layer is different from the rotation angle of the magnetization of the reference layer when the substrate is distorted. Electrical resistance is changed depending on the magnetization angle between the free layer and the reference layer, which allows the element to operate as a strain sensor.
摘要翻译： 应变传感器元件包括具有无磁性层，间隔层和磁性参考层的层压膜。 自由层具有可变的磁化方向和面外磁化方向。 参考层具有可变的磁化方向，该自由层的磁化强度比自由层的磁化强。 间隔层设置在自由层和参考层之间。 一对电极设置有层叠膜的平面。 基板设置有对电极中的任一个并且可以变形。 当衬底失真时，自由层的磁化的旋转角度与参考层的磁化的旋转角度不同。 电阻根据自由层和参考层之间的磁化角度而改变，这允许元件作为应变传感器工作。
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