Patents by Inventor Shiori Kaji
Shiori Kaji has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20180156683Abstract: According to one embodiment, a sensor includes a film portion and a first sensor portion. The film portion is deformable. The first sensor portion is provided at the film portion. The first sensor portion includes a first conductive layer, a second conductive layer, a first magnetic layer, a second magnetic layer, and a first intermediate layer. The second conductive layer is provided between the first conductive layer and the film portion. The first magnetic layer is provided between the first conductive layer and the second conductive layer. The second magnetic layer is provided between the first magnetic layer and the second conductive layer. The first intermediate layer is provided between the first magnetic layer and the second magnetic layer. A curvature of the first conductive layer is different from a curvature of at least a portion of the film portion.Type: ApplicationFiled: February 5, 2018Publication date: June 7, 2018Applicant: Kabushiki Kaisha ToshibaInventors: Kenji OTSU, Michiko HARA, Yoshihiko FUJI, Kei MASUNISHI, Akiko YUZAWA, Tomohiko NAGATA, Shiori KAJI, Yoshihiro HIGASHI, Kazuaki OKAMOTO, Shotaro BABA
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Publication number: 20180120172Abstract: According to one embodiment, a strain sensing element provided on a deformable substrate, includes: a first magnetic layer; a second magnetic layer; and an intermediate layer. The second magnetic layer includes Fe1-yBy (0<y?0.3). Magnetization of the second magnetic layer changes according to deformation of the substrate. The intermediate layer is provided between the first magnetic layer and the second magnetic layer.Type: ApplicationFiled: December 27, 2017Publication date: May 3, 2018Applicant: Kabushiki Kaisha ToshibaInventors: Shiori Kaji, Hideaki Fukuzawa, Yoshihiko Fuji
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Publication number: 20180116535Abstract: According to one embodiment, a strain sensing element is provided on a film unit configured to be deformed. The strain sensing element includes a functional layer, a first magnetic layer, a second magnetic layer, and a spacer layer. The functional layer includes at least one of an oxide and a nitride. The second magnetic layer is provided between the functional layer and the first magnetic layer. A magnetization of the second magnetic layer is variable in accordance with a deformation of the film unit. The spacer layer is provided between the first magnetic layer and the second magnetic layer. At least a part of the second magnetic layer is amorphous and includes boron.Type: ApplicationFiled: December 19, 2017Publication date: May 3, 2018Applicant: Kabushiki Kaisha ToshibaInventors: Yoshihiko FUJI, Hideaki FUKUZAWA, Shiori KAJI, Akio HORI, Tomohiko NAGATA, Michiko HARA, Yoshihiro HIGASHI, Akiko YUZAWA
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Patent number: 9952030Abstract: According to one embodiment, a strain sensing element includes a film unit being deformable, a first and a second magnetic unit, and a strain sensor. The first magnetic unit is provided on the film unit and is arranged with the film unit in a first direction. The first magnetic unit includes a first magnetic body layer and a first intermediate magnetic layer. The second magnetic unit is provided on the film unit and is arranged with the first magnetic unit in a second direction crossing the first direction. The second magnetic unit includes a second magnetic body layer and a second intermediate magnetic layer. The strain sensor is provided on the film unit between the first magnetic unit and the second magnetic unit. An electrical characteristic of the strain sensor changes according to a deformation of the film unit.Type: GrantFiled: October 20, 2015Date of Patent: April 24, 2018Assignee: Kabushiki Kaisha ToshibaInventors: Shiori Kaji, Hideaki Fukuzawa, Tomohiko Nagata, Akio Hori, Yoshihiko Fuji
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Publication number: 20180080842Abstract: According to one embodiment, a sensor includes a film portion and a first sensor portion. The film portion is deformable. The first sensor portion is provided at the film portion. The first sensor portion includes a first conductive layer, a second conductive layer, a first magnetic layer, a second magnetic layer, and a first intermediate layer. The second conductive layer is provided between the first conductive layer and the film portion. The first magnetic layer is provided between the first conductive layer and the second conductive layer. The second magnetic layer is provided between the first magnetic layer and the second conductive layer. The first intermediate layer is provided between the first magnetic layer and the second magnetic layer. A curvature of the first conductive layer is different from a curvature of at least a portion of the film portion.Type: ApplicationFiled: February 23, 2017Publication date: March 22, 2018Applicant: KABUSHIKI KAISHA TOSHIBAInventors: KENJI OTSU, MICHIKO HARA, YOSHIHIKO FUJI, KEI MASUNISHI, AKIKO YUZAWA, TOMOHIKO NAGATA, SHIORI KAJI, YOSHIHIRO HIGASHI, KAZUAKI AKAMOTO, SHOTARO BABA
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Publication number: 20180080953Abstract: According to one embodiment, a sensor includes a first support portion, a first movable portion, a first piezoelectric element, and a first magnetic element. The first movable portion extends in a first extension direction and is connected to the first support portion. The first piezoelectric element is fixed to the first movable portion. The first piezoelectric element includes a first electrode, a second electrode provided between the first electrode and the first movable portion, and a first piezoelectric layer provided between the first electrode and the second electrode. The first magnetic element is fixed to the first movable portion. The first magnetic element includes a first magnetic layer, a second magnetic layer, and a first intermediate layer provided between the first magnetic layer and the second magnetic layer.Type: ApplicationFiled: February 28, 2017Publication date: March 22, 2018Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yoshihiko Fuji, Michiko Hara, Kei Masunishi, Yoshihiro Higashi, Shiori Kaji, Akiko Yuzawa, Tomohiko Nagata, Kenji Otsu, Kazuaki Okamoto, Shotaro Baba
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Patent number: 9921114Abstract: According to one embodiment, a pressure sensor includes a film part, and a sensing unit. A circumscribing rectangle circumscribing a configuration of a film surface of the film part has a first side, a second side, a third side connected to one end of the first side and one end of the second side, a fourth side connected to one other end of the first side and one other end of the second side, and a centroid of the circumscribing rectangle. The circumscribing rectangle includes a first region enclosed by the first side, line segments connecting the centroid to the one end of the first side, and to the one other end of the first side. The sensing unit includes sensing elements provided on a portion of the film surface overlapping the first region. Each sensing element includes a first, second magnetic layers, and a spacer layer.Type: GrantFiled: December 22, 2016Date of Patent: March 20, 2018Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiko Fuji, Kei Masunishi, Hideaki Fukuzawa, Yoshihiro Higashi, Michiko Hara, Akio Hori, Tomohiko Nagata, Shiori Kaji, Akiko Yuzawa
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Publication number: 20180076385Abstract: A method of manufacturing a pressure sensor comprises: above a film portion formed on one surface of a substrate, depositing a first magnetic layer, a second magnetic layer and an intermediate layer between the first and second magnetic layers on one surface of a substrate; removing the deposited layers leaving a part thereof; and removing a part of the substrate from another surface of the substrate. By removing the deposited layers leaving apart thereof, a strain detecting element is formed in a part of a first region, the strain detecting element comprising the first magnetic layer, the second magnetic layer and the intermediate layer. By removing a part of the substrate, a part of the first region of the substrate is removed. In addition, the deposition of the first magnetic layer is performed with the substrate being bended.Type: ApplicationFiled: November 7, 2017Publication date: March 15, 2018Applicant: Kabushiki Kaisha ToshibaInventors: Yoshihiko FUJI, Hideaki Fukuzawa, Shiori Kaji
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Publication number: 20180067005Abstract: According to one embodiment, a pressure sensor includes a film part, and a sensing unit. A circumscribing rectangle circumscribing a configuration of a film surface of the film part has a first side, a second side, a third side connected to one end of the first side and one end of the second side, a fourth side connected to one other end of the first side and one other end of the second side, and a centroid of the circumscribing rectangle. The circumscribing rectangle includes a first region enclosed by the first side, line segments connecting the centroid to the one end of the first side, and to the one other end of the first side. The sensing unit includes sensing elements provided on a portion of the film surface overlapping the first region. Each sensing element includes a first, second magnetic layers, and a spacer layer.Type: ApplicationFiled: November 8, 2017Publication date: March 8, 2018Applicant: Kabushiki Kaisha ToshibaInventors: Yoshihiko Fuji, Kei Masunishi, Hideaki Fukuzawa, Yoshihiro Higashi, Michiko Hara, Akio Hori, Tomohiko Nagata, Shiori Kaji, Akiko Yuzawa
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Patent number: 9897494Abstract: According to one embodiment, a strain sensing element provided on a deformable substrate, includes: a first magnetic layer; a second magnetic layer; and an intermediate layer. The second magnetic layer includes Fe1-yBy (0<y?0.3). Magnetization of the second magnetic layer changes according to deformation of the substrate. The intermediate layer is provided between the first magnetic layer and the second magnetic layer.Type: GrantFiled: July 17, 2014Date of Patent: February 20, 2018Assignee: Kabushiki Kaisha ToshibaInventors: Shiori Kaji, Hideaki Fukuzawa, Yoshihiko Fuji
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Publication number: 20180045752Abstract: According to one embodiment, an inertial sensor includes a base portion, a weight portion, a connection portion, and a first sensing element unit. The connection portion connects the weight portion and the base portion and is capable of being deformed in accordance with a change in relative position of the weight portion with respect to the position of the base portion. The first sensing element unit is provided on a first portion of the connection portion and includes a first magnetic layer, a second magnetic layer, and a nonmagnetic first intermediate layer. The nonmagnetic first intermediate layer is provided between the first magnetic layer and the second magnetic layer.Type: ApplicationFiled: October 4, 2017Publication date: February 15, 2018Applicant: Kabushiki Kaisha ToshibaInventors: Hideaki Fukuzawa, Michiko Hara, Yoshihiko Fuji, Yoshihiro Higashi, Shiori Kaji, Akio Hori, Tomohiko Nagata, Akiko Yuzawa, Akira Kikitsu
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Patent number: 9872624Abstract: According to one embodiment, a strain sensing element is provided on a film unit configured to be deformed. The strain sensing element includes a functional layer, a first magnetic layer, a second magnetic layer, and a spacer layer. The functional layer includes at least one of an oxide and a nitride. The second magnetic layer is provided between the functional layer and the first magnetic layer. A magnetization of the second magnetic layer is variable in accordance with a deformation of the film unit. The spacer layer is provided between the first magnetic layer and the second magnetic layer. At least a part of the second magnetic layer is amorphous and includes boron.Type: GrantFiled: August 28, 2014Date of Patent: January 23, 2018Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiko Fuji, Hideaki Fukuzawa, Shiori Kaji, Akio Hori, Tomohiko Nagata, Michiko Hara, Yoshihiro Higashi, Akiko Yuzawa
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Patent number: 9853209Abstract: A method of manufacturing a pressure sensor comprises: above a film portion formed on one surface of a substrate, depositing a first magnetic layer, a second magnetic layer and an intermediate layer between the first and second magnetic layers on one surface of a substrate; removing the deposited layers leaving a part thereof; and removing a part of the substrate from another surface of the substrate. By removing the deposited layers leaving a part thereof, a strain detecting element is formed in a part of a first region, the strain detecting element comprising the first magnetic layer, the second magnetic layer and the intermediate layer. By removing a part of the substrate, a part of the first region of the substrate is removed. In addition, the deposition of the first magnetic layer is performed with the substrate being bended.Type: GrantFiled: March 18, 2015Date of Patent: December 26, 2017Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Yoshihiko Fuji, Hideaki Fukuzawa, Shiori Kaji
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Patent number: 9841444Abstract: According to one embodiment, a current sensor includes a first sensor element and a power line. The first sensor element includes a first electrode, a second electrode, and a first stacked body. The first stacked body is provided between the first electrode and the second electrode. The first stacked body includes a first magnetic layer, a second magnetic layer and a first intermediate layer. The second magnetic layer is provided between the first magnetic layer and the second electrode. The first intermediate layer is provided between the first magnetic layer and the second magnetic layer. The first intermediate layer is nonmagnetic. A magnetization of the second magnetic layer changes according to a magnetic field generated by a current flowing through the power line. At least a portion of the second magnetic layer is amorphous.Type: GrantFiled: December 18, 2014Date of Patent: December 12, 2017Assignee: Kabushiki Kaisha ToshibaInventors: Hideaki Fukuzawa, Yoshihiko Fuji, Shiori Kaji, Yoshihiro Higashi
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Patent number: 9810711Abstract: An inertial sensor includes a base portion, a weight portion, a connection portion, and a first sensing element unit. The connection portion connects the weight portion and the base portion and is capable of being deformed in accordance with a change in relative position of the weight portion with respect to the position of the base portion. The first sensing element unit is provided on a first portion of the connection portion and includes a first magnetic layer, a second magnetic layer, and a nonmagnetic first intermediate layer. The nonmagnetic first intermediate layer is provided between the first magnetic layer and the second magnetic layer.Type: GrantFiled: August 15, 2014Date of Patent: November 7, 2017Assignee: Kabushiki Kaisha ToshibaInventors: Hideaki Fukuzawa, Michiko Hara, Yoshihiko Fuji, Yoshihiro Higashi, Shiori Kaji, Akio Hori, Tomohiko Nagata, Akiko Yuzawa, Akira Kikitsu
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Patent number: 9791341Abstract: According to one embodiment, a pressure sensor includes a support, a film unit supported by the support, having an upper surface, and capable of being deformed, and a first sensing element provided on the upper surface. The first sensing element includes a first magnetic layer, a second magnetic layer provided apart from the first magnetic layer and a first intermediate unit including a first intermediate layer including a portion provided between the first and second magnetic layers. The first magnetic layer extends in a first direction parallel to the upper surface, and a first major axis length of the first magnetic layer is longer than a first minor axis length. The second magnetic layer extends in a second direction parallel to the upper surface and crossing the first direction, and a second major axis length of the second magnetic layer is longer than a second minor axis length.Type: GrantFiled: August 27, 2014Date of Patent: October 17, 2017Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiko Fuji, Hideaki Fukuzawa, Michiko Hara, Tomohiko Nagata, Akio Hori, Shiori Kaji, Yoshihiro Higashi, Akiko Yuzawa
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Publication number: 20170241851Abstract: According to one embodiment, a pressure sensor includes a film portion, a sensor unit, and a structure body. The film portion has a front surface and is deformable. The sensor unit includes a plurality of sensing elements arranged along the front surface. One of the plurality of sensing elements includes a magnetic layer, a opposing magnetic layer, and a nonmagnetic intermediate layer. The structure body is arranged with the first sensor unit along the arrangement direction of the plurality of sensing elements. The structure body includes a structure body layer, a opposing structure body layer, and a intermediate structure body layer. The structure body layer has at least one of a floating potential with respect to the opposing structure body layer or same potential as a potential of the opposing structure body layer.Type: ApplicationFiled: September 12, 2016Publication date: August 24, 2017Inventors: Shotaro BABA, Yoshihiko FUJI, Kei MASUNISHI, Michiko HARA, Akiko YUZAWA, Shiori KAJI, Tomohiko NAGATA, Yoshihiro HIGASHI, Kenji OTSU, Kazuaki OKAMOTO
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Publication number: 20170135592Abstract: According to one embodiment, a strain sensing element provided on a deformable substrate includes: a first magnetic layer; a second magnetic layer; a spacer layer; and a bias layer. Magnetization of the second magnetic layer changes according to deformation of the substrate. The spacer layer is provided between the first magnetic layer and the second magnetic layer. The second magnetic layer is provided between the spacer layer and the bias layer. The bias layer is configured to apply a bias to the second magnetic layer.Type: ApplicationFiled: January 31, 2017Publication date: May 18, 2017Inventors: Yoshihiko Fuji, Hideaki Fukuzawa, Shiori Kaji
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Patent number: 9654883Abstract: According to one embodiment, a strain sensing element provided on a deformable substrate includes: a first magnetic layer; a second magnetic layer; a spacer layer; and a bias layer. Magnetization of the second magnetic layer changes according to deformation of the substrate. The spacer layer is provided between the first magnetic layer and the second magnetic layer. The second magnetic layer is provided between the spacer layer and the bias layer. The bias layer is configured to apply a bias to the second magnetic layer.Type: GrantFiled: September 3, 2014Date of Patent: May 16, 2017Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiko Fuji, Hideaki Fukuzawa, Shiori Kaji
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Patent number: 9651432Abstract: According to one embodiment, a strain sensing element to be provided on a deformable substrate, the element includes: a reference layer; a magnetization free layer; and a spacer layer. Magnetization of the magnetization free layer changes in accordance with deformation of the substrate. The spacer layer is provided between the reference layer and the magnetization free layer. The magnetization free layer has: a first magnetic layer; a second magnetic layer; and a magnetic coupling layer. The first magnetic layer is provided in contact with the spacer layer. The second magnetic layer is provided to be separated from the first magnetic layer. The magnetic coupling layer is provided between the first magnetic layer and the second magnetic layer. Magnetization of the first magnetic layer is anti-parallel to magnetization of the second magnetic layer.Type: GrantFiled: August 28, 2014Date of Patent: May 16, 2017Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiko Fuji, Hideaki Fukuzawa, Shiori Kaji