Patents by Inventor Yoshihiro Higashi
Yoshihiro Higashi 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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Patent number: 10477323Abstract: According to one embodiment, a microphone package includes: a pressure sensing element including a film and a device; and a cover. The film generates strain in response to pressure. The device includes: a first electrode; a second electrode; and a first magnetic layer. The first magnetic layer is provided between the first electrode and the second electrode and has a first magnetization. The cover includes: an upper portion; and a side portion. The side portion is magnetic and provided depending on the first magnetization and the second magnetization.Type: GrantFiled: August 3, 2018Date of Patent: November 12, 2019Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiro Higashi, Yoshihiko Fuji, Michiko Hara, Akiko Yuzawa, Shiori Kaji, Tomohiko Nagata, Akio Hori, Hideaki Fukuzawa
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Publication number: 20190285436Abstract: According to one embodiment, a sensor includes a sensing element portion and a first magnetic portion. The sensing element portion includes a supporter, a deformable film portion supported by the supporter, and a first element including a magnetic layer and being provided at the film portion. The first magnetic portion is separated from the sensing element portion. The first magnetic portion includes a plurality of first holes. A width of one of the plurality of first holes along a second direction is narrower than a length of the sensing element portion along the second direction and wider than a length of the first element along the second direction. The second direction crosses a first direction from the film portion toward the first element.Type: ApplicationFiled: August 31, 2018Publication date: September 19, 2019Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATIONInventors: Yoshihiko FUJI, Keiju Yamada, Kei Masunishi, Michiko Hara, Yoshihiro Higashi, Kazuaki Okamoto, Shiori Kaji
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Patent number: 10413198Abstract: 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: December 19, 2017Date of Patent: September 17, 2019Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiko Fuji, Hideaki Fukuzawa, Shiori Kaji, Akio Hori, Tomohiko Nagata, Michiko Hara, Yoshihiro Higashi, Akiko Yuzawa
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Publication number: 20190272934Abstract: According to one embodiment, a sensor includes a deformable film portion, and a first sensing element provided at the film portion. The first sensing element includes a first magnetic layer, a second magnetic layer, and a first intermediate layer provided between the first and second magnetic layers. The first intermediate layer is nonmagnetic. The first magnetic layer includes a first film including Fe and Co, a second film including Fe and Co, a third film, and a fourth film. The third film includes at least one selected from the group consisting of Cu, Au, Ru, Ag, Pt, Pd, Ir, Rh, Re, and Os and is provided between the first and second films. The fourth film includes at least one selected from the group consisting of Mg, Ca, Sc, Ti, Sr, Y, Zr, Nb, Mo, Ba, La, Hf, Ta, and W and is provided between the third and second films.Type: ApplicationFiled: August 31, 2018Publication date: September 5, 2019Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kazuaki OKAMOTO, Yoshihiko FUJI, Shiori KAJI, Yoshihiro HIGASHI, Tomohiko NAGATA, Shotaro BABA, Michiko HARA
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Patent number: 10345162Abstract: According to one embodiment, a sensor includes a first sensor unit, a first stacked body, and a film unit. The first sensor unit includes a first magnetic layer, a second magnetic layer, and a first intermediate layer, the first intermediate layer being provided between the first magnetic layer and the second magnetic layer. The first stacked body includes a third magnetic layer, a fourth magnetic layer, and a second intermediate layer, the second intermediate layer being provided between the third magnetic layer and the fourth magnetic layer. The film unit is deformable. A portion of the film unit is disposed between the first sensor unit and the first stacked body.Type: GrantFiled: August 25, 2016Date of Patent: July 9, 2019Assignee: Kabushiki Kaisha ToshibaInventors: Akiko Yuzawa, Hideaki Fukuzawa, Kei Masunishi, Yoshihiro Higashi, Michiko Hara, Yoshihiko Fuji
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Patent number: 10295578Abstract: A full bridge circuit comprises first to fourth magnetic resistance elements. The first and fourth magnetic resistance elements have a first polarity, while the second and third magnetic resistance elements have a second polarity. A comparison circuit compares a first value indicating a difference between a potential of a first connecting node and a first potential and a second value indicating a difference between a potential of a second connecting node and a second potential to determine presence/absence of an external magnetic field. An initial magnetization vector of a magnetization free layer of the first magnetic resistance element is the reverse of that of a magnetization free layer of the second magnetic resistance element. An initial magnetization vector of a magnetization free layer of the third magnetic resistance element is the reverse of that of a magnetization free layer of the fourth magnetic resistance element.Type: GrantFiled: November 5, 2015Date of Patent: May 21, 2019Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiro Higashi, Hideaki Fukuzawa, Tetsuro Wamura, Masakazu Yaginuma, Motomichi Shibano
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Patent number: 10254315Abstract: A current sensor comprises: a plurality of magnetoresistance elements whose resistance value changes by application of an current-induced magnetic field from a current-to-be-measured; and a selection circuit that selects one magnetoresistance element from these plurality of magnetoresistance elements and outputs a signal of a selected magnetoresistance element. In the plurality of magnetoresistance elements, relationships between a magnitude of the applied current-induced magnetic field and the resistance value are different from each other.Type: GrantFiled: December 23, 2014Date of Patent: April 9, 2019Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiro Higashi, Yoshihiko Fuji, Hideaki Fukuzawa, Tetsuro Wamura, Motomichi Shibano
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Patent number: 10254305Abstract: 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: October 4, 2017Date of Patent: April 9, 2019Assignee: 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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Publication number: 20190086481Abstract: According to one embodiment, a sensor includes a supporter, a first film portion, a first sensing element, and a first magnetic portion. The first film portion is supported by the supporter, is deformable, and includes a first fixed end extending along a first fixed end direction. A first sensing element is fixed to the first film portion, and includes a first magnetic layer, a first opposing magnetic layer provided between the first magnetic layer and the first film portion, and a first intermediate layer provided between the first magnetic layer and the first opposing magnetic layer. A direction from the first opposing magnetic layer toward the first magnetic layer is aligned with a first element direction. The first magnetic portion includes a first end portion extending along a first end portion direction tilted with respect to the first fixed end direction, and overlaps a portion of the supporter.Type: ApplicationFiled: February 14, 2018Publication date: March 21, 2019Applicant: Kabushiki Kaisha ToshibaInventors: Shotaro BABA, Yoshihiko FUJI, Akiko YUZAWA, Kei MASUNISHI, Michiko HARA, Shiori KAJI, Tomohiko NAGATA, Yoshihiro HIGASHI, Kazuaki OKAMOTO
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Patent number: 10234343Abstract: 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: November 8, 2017Date of Patent: March 19, 2019Assignee: 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: 10206654Abstract: A pressure sensor of an embodiment includes a support portion, a transformable membrane part and a sensor portion. The membrane part includes an end portion supported by the support portion, and a first area and a second area. The first area is positioned between a center of the membrane part and the end portion and has a first rigidity. The second area is positioned between the first area and the end portion, and has a second rigidity lower than the first rigidity. The sensor portion is provided at the first area and 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. An end-side distance between the first area and the end portion is shorter than a center-side distance between the second area and the center of the membrane part.Type: GrantFiled: September 1, 2016Date of Patent: February 19, 2019Assignee: Kabushiki Kaisha ToshibaInventors: Kei Masunishi, Akiko Yuzawa, Yoshihiko Fuji, Michiko Hara, Yoshihiro Higashi, Kazuaki Okamoto, Kenji Otsu
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Publication number: 20190041285Abstract: According to one embodiment, a sensor includes a deformable film portion, a first sensing element and a second sensing element. The first sensing element is fixed to the film portion, and includes a first magnetic layer of a first material, a first opposing magnetic layer, and a first intermediate layer. The first intermediate layer is provided between the first magnetic layer and the first opposing magnetic layer. The second sensing element is fixed to the film portion, and includes a second magnetic layer of a second material, a second opposing magnetic layer, and a second intermediate layer. The second material is different from the first material. The second intermediate layer is provided between the second magnetic layer and the second opposing magnetic layer.Type: ApplicationFiled: September 28, 2018Publication date: February 7, 2019Applicant: Kabushiki Kaisha ToshibaInventors: Yoshihiko FUJI, Michiko HARA, Kei MASUNISHI, Yoshihiro HIGASHI, Shiori KAJI, Akiko YUZAWA, Akio HORI, Tomohiko NAGATA, Kazuaki OKAMOTO, Kenji OTSU, Shotaro BABA
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Publication number: 20190017891Abstract: According to one embodiment, a sensor includes a first film, a first sensor portion, and first to fourth terminals. The first film includes first to second electrode layers, and a piezoelectric layer. The first film is deformable. The first sensor portion is fixed to a portion of the first film. A first direction from the portion of the first film toward the first sensor portion is aligned with a direction from the second electrode layer toward the first electrode layer. The first sensor portion includes first to second sensor conductive layers, first to second magnetic layers, and a first intermediate layer. The first terminal is electrically connected to the first electrode layer. The second terminal is electrically connected to the second electrode layer. The third terminal is electrically connected to the first sensor conductive layer. The fourth terminal is electrically connected to the second sensor conductive layer.Type: ApplicationFiled: February 28, 2018Publication date: January 17, 2019Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kenji Otsu, Yoshihiko Fuji, Akiko Yuzawa, Michiko Hara, Yoshihiro Higashi, Shiori Kaji, Kazuaki Okamoto, Shotaro Baba, Tomohiko Nagata
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Publication number: 20180352342Abstract: According to one embodiment, a microphone package includes: a pressure sensing element including a film and a device; and a cover. The film generates strain in response to pressure. The device includes: a first electrode; a second electrode; and a first magnetic layer. The first magnetic layer is provided between the first electrode and the second electrode and has a first magnetization. The cover includes: an upper portion; and a side portion. The side portion is magnetic and provided depending on the first magnetization and the second magnetization.Type: ApplicationFiled: August 3, 2018Publication date: December 6, 2018Applicant: Kabushiki Kaisha ToshibaInventors: Yoshihiro Higashi, Yoshihiko Fuji, Michiko Hara, Akiko Yuzawa, Shiori Kaji, Tomohiko Nagata, Akio Hori, Hideaki Fukuzawa
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Patent number: 10145751Abstract: According to one embodiment, a sensor includes a deformable film portion, a first sensing element and a second sensing element. The first sensing element is fixed to the film portion, and includes a first magnetic layer of a first material, a first opposing magnetic layer, and a first intermediate layer. The first intermediate layer is provided between the first magnetic layer and the first opposing magnetic layer. The second sensing element is fixed to the film portion, and includes a second magnetic layer of a second material, a second opposing magnetic layer, and a second intermediate layer. The second material is different from the first material. The second intermediate layer is provided between the second magnetic layer and the second opposing magnetic layer.Type: GrantFiled: August 26, 2016Date of Patent: December 4, 2018Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiko Fuji, Michiko Hara, Kei Masunishi, Yoshihiro Higashi, Shiori Kaji, Akiko Yuzawa, Akio Hori, Tomohiko Nagata, Kazuaki Okamoto, Kenji Otsu, Shotaro Baba
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Publication number: 20180299338Abstract: According to one embodiment, the pressure sensor includes a supporting portion, a film portion, and a strain detecting element. The film portion is supported by the supporting portion. The strain detecting element is disposed on a part of the film portion. The strain detecting element includes a first magnetic layer, a second magnetic layer, and an intermediate layer. A magnetization direction of the first magnetic layer is variable according to a deformation of the film portion. The first magnetic layer has a first facing surface. The second magnetic layer has a second facing surface. The second facing surface faces the first facing surface. The intermediate layer is disposed between the first magnetic layer and the second magnetic layer. An area of the first facing surface is larger than an area of the second facing surface.Type: ApplicationFiled: June 22, 2018Publication date: October 18, 2018Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yoshihiko FUJI, Hideaki Fukuzawa, Yoshihiro Higashi, Shiori Kaji
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Patent number: 10094723Abstract: 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: GrantFiled: February 23, 2017Date of Patent: October 9, 2018Assignee: 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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Patent number: 10070230Abstract: According to one embodiment, a microphone package includes: a pressure sensing element including a film and a device; and a cover. The film generates strain in response to pressure. The device includes: a first electrode; a second electrode; and a first magnetic layer. The first magnetic layer is provided between the first electrode and the second electrode and has a first magnetization. The cover includes: an upper portion; and a side portion. The side portion is magnetic and provided depending on the first magnetization and the second magnetization.Type: GrantFiled: December 8, 2016Date of Patent: September 4, 2018Assignee: Kabushiki Kaisha ToshibaInventors: Yoshihiro Higashi, Yoshihiko Fuji, Michiko Hara, Akiko Yuzawa, Shiori Kaji, Tomohiko Nagata, Akio Hori, Hideaki Fukuzawa
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Publication number: 20180231621Abstract: According to one embodiment, a sensor includes a first film, a first sensor portion, a driving portion, and a processor. The first sensor portion is provided at the first film. The first sensor portion includes a first magnetic layer, a second magnetic layer, and a first intermediate layer. The second magnetic layer is provided between the first film and the first magnetic layer. The first intermediate layer is provided between the first magnetic layer and the second magnetic layer. The driving portion causes the first film to deform at a first frequency. The processor outputs a third signal based on a first signal and a second signal. The first signal relates to the first frequency. The second signal is output from the first sensor portion.Type: ApplicationFiled: September 15, 2017Publication date: August 16, 2018Applicant: Kabushiki Kaisha ToshibaInventors: Yoshihiro HIGASHI, Michiko HARA, Tomohiko NAGATA, Shiori KAJI, Yoshihiko FUJI, Akiko YUZAWA, Kenji OTSU, Kazuaki OKAMOTO, Shotaro BABA
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Publication number: 20180226572Abstract: According to an embodiment, a magnetic element includes a first layer, a first magnetic layer, a second magnetic layer, a first nonmagnetic layer, a second layer, and a third magnetic layer. The first layer includes ruthenium. The second magnetic layer is provided between the first layer and the first magnetic layer. The first nonmagnetic layer provided between the first magnetic layer and the second magnetic layer. The second layer includes tantalum. The second layer contacts the first layer and is provided between the first layer and the second magnetic layer. A lattice plane spacing of the second layer in a first direction is not less than 0.23 nm and not more than 0.25 nm. The first direction is from the first layer toward the first magnetic layer. The third magnetic layer includes manganese. The third magnetic layer is provided between the second layer and the second magnetic layer.Type: ApplicationFiled: September 8, 2017Publication date: August 9, 2018Applicant: Kabushiki Kaisha ToshibaInventors: Kazuaki OKAMOTO, Yoshihiko Fuji, Yoshihiro Higashi, Michiko Hara, Shiori Kaji