Patents by Inventor Yushi Kato
Yushi Kato 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: 11142420Abstract: A printing device includes a holder including: a first movable portion including a first support portion; a second movable portion including a second support portion; a pinion; a spring; an adjustment screw; a handle rotatable with the adjustment screw; and a stopper threadingly engaged with the adjustment screw. The first movable portion is movable in a first direction and a second direction opposite the first direction. The second movable portion is movable in the first direction and the second direction in accordance with movement of the first movable portion in the second direction and the first direction. The handle is positioned outside of a region defined between the first and second support portions positioned remotest from each other in the first direction. The stopper is in abutment with one of the first and second movable portions to restrict movements of the first and second movable portions.Type: GrantFiled: December 20, 2019Date of Patent: October 12, 2021Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Masashi Tanizaki, Yushi Kato
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Patent number: 11017826Abstract: According to one embodiment, a magnetic memory device includes a conductive member, a first magnetic layer, a first counter magnetic layer, and a first nonmagnetic layer. The conductive member includes a first portion, a second portion, and a third portion between the first portion and the second portion. The first counter magnetic layer is provided between the third portion and the first magnetic layer in a first direction crossing a second direction. The second direction is from the first portion toward the second portion. The first nonmagnetic layer is provided between the first magnetic layer and the first counter magnetic layer. The third portion includes a first position, and a second position between the first position and the first counter magnetic layer in the first direction. A second concentration of boron at the second position is lower than a first concentration of boron at the first position.Type: GrantFiled: November 27, 2019Date of Patent: May 25, 2021Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Yushi Kato, Soichi Oikawa, Hiroaki Yoda
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Publication number: 20210060985Abstract: An attachment capable of being attached, in a detachable manner, to an accommodation part of a printing apparatus which is for accommodating a print medium, the attachment being configured to support a roll including the print medium which is wound, the attachment including: a housing having a substantially box shape of which an upper part is opened, the housing being configured to accommodate the roll inside thereof in a replaceable manner; an engaging part provided to the housing and configured to engage, in a disengageable manner, to an engaged part provided to the accommodation part when the housing is attached to the accommodation part; and a support part provided to the housing and configured to rotatably support the roll.Type: ApplicationFiled: August 21, 2020Publication date: March 4, 2021Inventor: Yushi Kato
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Patent number: 10897007Abstract: According to one embodiment, a magnetic memory device includes a first magnetic region, a first counter magnetic region, and a first nonmagnetic region provided between the first magnetic region and the first counter magnetic region. The first magnetic region includes a first magnetic film, a second magnetic film, and an intermediate film. The first magnetic film is provided between the second magnetic film and the first nonmagnetic region. The intermediate film includes Ru and is provided between the first magnetic film and the second magnetic film. A distance along a first direction between the first magnetic film and the second magnetic film is not less than 1.8 nm and not more than 2.2 nm. The first direction is from the first counter magnetic region toward the first magnetic region.Type: GrantFiled: November 27, 2019Date of Patent: January 19, 2021Assignee: Kabushiki Kaisha ToshibaInventors: Soichi Oikawa, Yushi Kato, Hiroaki Yoda
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Patent number: 10867649Abstract: According to one embodiment, a magnetic memory device includes a first conductive layer, a first stacked body, and a controller. The first conductive layer includes a first region, a second region, and a third region between the first region and the second region. The first stacked body includes a first magnetic layer, a second magnetic layer provided between the third region and the first magnetic layer in a first direction crossing a second direction, and a first nonmagnetic layer provided between the first magnetic layer and the second magnetic layer. The second direction is from the first region toward the second region. The controller electrically is connected to the first region, the second region, and the first magnetic layer. The controller performs at least first to third operations. In the operations, the controller sets the first stacked body to first to third resistance state.Type: GrantFiled: February 12, 2019Date of Patent: December 15, 2020Assignee: Kabushiki Kaisha ToshibaInventors: Hiroaki Yoda, Satoshi Takaya, Yuichi Ohsawa, Naoharu Shimomura, Katsuhiko Koui, Yushi Kato, Shinobu Fujita
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Patent number: 10734053Abstract: According to one embodiment, a magnetic memory device includes a conductive member, a first magnetic layer, a second magnetic layer, and a first nonmagnetic layer. The conductive member includes a first layer. The first layer includes at least one selected from the group consisting of HfN having a NaCl structure, HfN having a fcc structure, and HfC having a NaCl structure. The first magnetic layer is separated from the first layer in a first direction. The second magnetic layer is provided between the first layer and the first magnetic layer. The first nonmagnetic layer is provided between the first magnetic layer and the second magnetic layer.Type: GrantFiled: February 11, 2019Date of Patent: August 4, 2020Assignee: Kabushiki Kaisha ToshibaInventors: Mizue Ishikawa, Yushi Kato, Soichi Oikawa, Hiroaki Yoda
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Publication number: 20200239260Abstract: A printing device includes a holder including: a first movable portion including a first support portion; a second movable portion including a second support portion; a pinion; a spring; an adjustment screw; a handle rotatable with the adjustment screw; and a stopper threadingly engaged with the adjustment screw. The first movable portion is movable in a first direction and a second direction opposite the first direction. The second movable portion is movable in the first direction and the second direction in accordance with movement of the first movable portion in the second direction and the first direction. The handle is positioned outside of a region defined between the first and second support portions positioned remotest from each other in the first direction. The stopper is in abutment with one of the first and second movable portions to restrict movements of the first and second movable portions.Type: ApplicationFiled: December 20, 2019Publication date: July 30, 2020Inventors: Masashi Tanizaki, Yushi Kato
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Publication number: 20200168790Abstract: According to one embodiment, a magnetic memory device includes a first magnetic region, a first counter magnetic region, and a first nonmagnetic region provided between the first magnetic region and the first counter magnetic region. The first magnetic region includes a first magnetic film, a second magnetic film, and an intermediate film. The first magnetic film is provided between the second magnetic film and the first nonmagnetic region. The intermediate film includes Ru and is provided between the first magnetic film and the second magnetic film. A distance along a first direction between the first magnetic film and the second magnetic film is not less than 1.8 nm and not more than 2.2 nm. The first direction is from the first counter magnetic region toward the first magnetic region.Type: ApplicationFiled: November 27, 2019Publication date: May 28, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Soichi OIKAWA, Yushi KATO, Hiroaki YODA
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Publication number: 20200168260Abstract: According to one embodiment, a magnetic memory device includes a conductive member, a first magnetic layer, a first counter magnetic layer, and a first nonmagnetic layer. The conductive member includes a first portion, a second portion, and a third portion between the first portion and the second portion. The first counter magnetic layer is provided between the third portion and the first magnetic layer in a first direction crossing a second direction. The second direction is from the first portion toward the second portion. The first nonmagnetic layer is provided between the first magnetic layer and the first counter magnetic layer. The third portion includes a first position, and a second position between the first position and the first counter magnetic layer in the first direction. A second concentration of boron at the second position is lower than a first concentration of boron at the first position.Type: ApplicationFiled: November 27, 2019Publication date: May 28, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yushi KATO, Soichi OIKAWA, Hiroaki YODA
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Patent number: 10580472Abstract: According to one embodiment, a magnetic memory device includes a conductive layer, a first magnetic layer, a second magnetic layer, a first nonmagnetic layer, and a controller. The conductive layer includes a first portion, a second portion, and a third portion. The first magnetic layer is separated from the third portion. The first nonmagnetic layer is provided between the first magnetic layer and the second magnetic layer that is electrically connected with the third portion. The first nonmagnetic layer is curved. The controller is electrically connected to the first portion and the second portion. The controller implements a first operation and a second operation. The controller in the first operation supplies a first current to the conductive layer from the first portion toward the second portion. The controller in the second operation supplies a second current to the conductive layer from the second portion toward the first portion.Type: GrantFiled: November 20, 2018Date of Patent: March 3, 2020Assignee: Kabushiki Kaisha ToshibaInventors: Yuichi Ohsawa, Hiroaki Yoda, Altansargai Buyandalai, Satoshi Shirotori, Mariko Shimizu, Hideyuki Sugiyama, Yushi Kato
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Publication number: 20200058338Abstract: According to one embodiment, a magnetic memory device includes a conductive member, a first magnetic layer, a second magnetic layer, and a first nonmagnetic layer. The conductive member includes a first layer. The first layer includes at least one selected from the group consisting of HfN having a NaCl structure, HfN having a fcc structure, and HfC having a NaCl structure. The first magnetic layer is separated from the first layer in a first direction. The second magnetic layer is provided between the first layer and the first magnetic layer. The first nonmagnetic layer is provided between the first magnetic layer and the second magnetic layer.Type: ApplicationFiled: February 11, 2019Publication date: February 20, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Mizue ISHIKAWA, Yushi KATO, Soichi OIKAWA, Hiroaki YODA
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Publication number: 20200020374Abstract: According to one embodiment, a magnetic memory device includes a first conductive layer, a first stacked body, and a controller. The first conductive layer includes a first region, a second region, and a third region between the first region and the second region. The first stacked body includes a first magnetic layer, a second magnetic layer provided between the third region and the first magnetic layer in a first direction crossing a second direction, and a first nonmagnetic layer provided between the first magnetic layer and the second magnetic layer. The second direction is from the first region toward the second region. The controller electrically is connected to the first region, the second region, and the first magnetic layer. The controller performs at least first to third operations. In the operations, the controller sets the first stacked body to first to third resistance state.Type: ApplicationFiled: February 12, 2019Publication date: January 16, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hiroaki YODA, Satoshi Takaya, Yuichi Ohsawa, Naoharu Shimomura, Katsuhiko Koui, Yushi Kato, Shinobu Fujita
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Patent number: 10490736Abstract: A magnetic memory according to an embodiment includes: first to third terminals; a nonmagnetic conductive layer including first to third regions, the second region being disposed between the first and third regions, the first region being electrically connected to the first terminal, and the third region being electrically connected to the second terminal; and a magnetoresistive element disposed to correspond to the second region, including a first magnetic layer electrically connected to the third terminal, a second magnetic layer disposed between the first magnetic layer and the second region, and a nonmagnetic layer disposed between the first and second magnetic layers, the conductive layer including at least one of an alloy including Ir and Ta, an alloy including Ir and V, an alloy including Au and V, an alloy including Au and Nb, or an alloy including Pt and V, each of the alloys having an fcc structure.Type: GrantFiled: March 6, 2018Date of Patent: November 26, 2019Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Yoshiaki Saito, Tomoaki Inokuchi, Yushi Kato, Soichi Oikawa, Mizue Ishikawa, Hiroaki Yoda
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Patent number: 10453513Abstract: According to one embodiment, a magnetic memory device includes a conductive layer, a first magnetic layer, a second magnetic layer, a first nonmagnetic layer, and a controller. The conductive layer includes first and second portions, and a third portion between the first and second portions. The conductive layer includes a first metal and boron. The first magnetic layer is separated from the third portion in a first direction crossing a second direction. The second magnetic layer is provided between the third portion and the first magnetic layer. The first nonmagnetic layer is provided between the first and second magnetic layers. The controller is electrically connected to the first and second portions. The controller supplies a current to the conductive layer. The first metal includes at least one selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu.Type: GrantFiled: March 12, 2018Date of Patent: October 22, 2019Assignee: Kabushiki Kaisha ToshibaInventors: Yushi Kato, Yoshiaki Saito, Mizue Ishikawa, Soichi Oikawa, Hiroaki Yoda
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Patent number: 10395709Abstract: According to one embodiment, a magnetic memory device includes a conductive layer, a first magnetic layer, a first nonmagnetic layer, a second magnetic layer, a first conductive region, a first insulating region, and a controller. The conductive layer includes a first element. The conductive layer includes a first portion, a second portion, a third portion between the first portion and the second portion, and a fourth portion between the second portion and the third portion. The first conductive region includes a second element different from the first element. The first conductive region is provided between the second magnetic layer and the third portion. The first insulating region includes a first insulating substance. The first insulating substance is an insulating compound of the second element. The controller is electrically connected to the first portion and the second portion. The controller implements a first operation and a second operation.Type: GrantFiled: September 28, 2018Date of Patent: August 27, 2019Assignee: Kabushiki Kaisha ToshibaInventors: Mariko Shimizu, Yuichi Ohsawa, Hideyuki Sugiyama, Satoshi Shirotori, Altansargai Buyandalai, Yushi Kato
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Patent number: 10374150Abstract: According to one embodiment, a magnetic memory device includes a conductive layer, first and second magnetic layers, a first nonmagnetic layer and a controller. The conductive layer includes first and second portions, and a third portion positioned between the first and second portions. The conductive layer includes a first metal. The first magnetic layer is separated from the third portion. The second magnetic layer is provided between the third portion and the first magnetic layer. The first nonmagnetic layer is provided between the first and second magnetic layers. The controller is electrically connected to the first and second portions. The second magnetic layer has first and second lattice lengths. The first lattice length is longer than the second lattice length. The controller implements a first operation of supplying a first current to the conductive layer, and a second operation of supplying a second current to the conductive layer.Type: GrantFiled: February 26, 2018Date of Patent: August 6, 2019Assignee: Kabushiki Kaisha ToshibaInventors: Yushi Kato, Yoshiaki Saito, Soichi Oikawa, Mizue Ishikawa, Hiroaki Yoda
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Patent number: 10360960Abstract: According to one embodiment, a magnetic memory device includes a conductive layer, a first magnetic layer, a second magnetic layer, a first nonmagnetic layer, and a controller. The conductive layer includes a first portion, a second portion, and a third portion between the first and second portions. The first magnetic layer is separated from the third portion. The second magnetic layer is provided between the third portion and the first magnetic layer. The first nonmagnetic layer is provided between the first and second magnetic layers. The controller is electrically connected to the first and second portions. The third portion includes a first region and a second region. The second region is provided between the first region and the second magnetic layer. The controller implements a first operation of supplying a first current to the conductive layer, and a second operation of supplying a second current to the conductive layer.Type: GrantFiled: September 11, 2017Date of Patent: July 23, 2019Assignee: Kabushiki Kaisha ToshibaInventors: Yushi Kato, Soichi Oikawa, Mizue Ishikawa, Yoshiaki Saito, Hiroaki Yoda
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Patent number: 10340442Abstract: A magnetoresistive element according to an embodiment includes: a first magnetic layer; a second magnetic layer; and a first nonmagnetic layer disposed between the first magnetic layer and the second magnetic layer, wherein the second magnetic layer includes a magnetic material containing at least one element selected from a first group consisting of Mn, Fe, Co, and Ni; at least one element selected from a second group consisting of Ru, Rh, Pd, Ag, Os, Ir, Pt, and Au; and at least one element selected from a third group consisting of Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu.Type: GrantFiled: February 28, 2017Date of Patent: July 2, 2019Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Naoki Hase, Takao Ochiai, Tadaomi Daibou, Yushi Kato, Shumpei Omine, Junichi Ito
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Patent number: 10305027Abstract: According to one embodiment, a magnetoresistive element includes a first magnetic layer, a second magnetic layer, and a first nonmagnetic layer. The first nonmagnetic layer is provided between the first magnetic layer and the second magnetic layer. The first nonmagnetic layer includes an oxide including an inverse-spinel structure.Type: GrantFiled: September 8, 2017Date of Patent: May 28, 2019Assignees: Kabushiki Kaisha Toshiba, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Yushi Kato, Tadaomi Daibou, Yuuzo Kamiguchi, Naoharu Shimomura, Junichi Ito, Hiroaki Sukegawa, Mohamed Belmoubarik, Po-Han Cheng, Seiji Mitani, Tadakatsu Ohkubo, Kazuhiro Hono
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Patent number: 10269866Abstract: A magnetoresistive element includes: a first ferromagnetic layer; a second ferromagnetic layer; and a first nonmagnetic layer disposed between the first ferromagnetic layer and the second ferromagnetic layer, the first ferromagnetic layer including (MnxGay)100-zPtz, the (MnxGay)100-zPtz having a tetragonal crystal structure, where 45 atm %?x?75 atm %, 25 atm %?y?55 atm %, x+y=100 atm %, and 0 atm %<z?7 atm %.Type: GrantFiled: January 29, 2016Date of Patent: April 23, 2019Assignees: KABUSHIKI KAISHA TOSHIBA, TOHOKU UNIVERSITYInventors: Yushi Kato, Tadaomi Daibou, Eiji Kitagawa, Takao Ochiai, Junichi Ito, Takahide Kubota, Shigemi Mizukami, Terunobu Miyazaki