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11. 发明授权

US11597010B2 Plurality of flaky magnetic metal particles, pressed powder material, and rotating electric machine 有权
公开(公告)号：US11597010B2
公开(公告)日：2023-03-07
申请号：US16106636
申请日：2018-08-21
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Hiroaki Kinouchi , Tomohiro Suetsuna , Takahiro Kawamoto , Yasuyuki Hotta
IPC分类号： H01F1/24 , H01F1/26 , H01F1/33 , H01F1/147 , B22F1/068 , H02K1/02 , B22F1/0545 , B22F9/04 , B22F3/02 , B22F1/17 , H01F1/153 , B22F1/054
摘要： Provided is a plurality of flaky magnetic metal particles of embodiments, each flaky magnetic metal particle having a flat surface having either or both of a plurality of concavities and a plurality of convexities, the concavities or convexities being arranged in a first direction and each having a width of 0.1 μm or more, a length of 1 μm or more, and an aspect ratio of 2 or higher; and a magnetic metal phase containing at least one primary element selected from the group consisting of iron (Fe), cobalt (Co), and nickel (Ni). The flaky magnetic metal particles have an average thickness of between 10 nm and 100 μm inclusive, and the average value of the ratio of the average length within the flat surface with respect to the thickness is between 5 and 10,000 inclusive.

12. 发明授权

US11588359B2 Rotating electric machine 有权
公开(公告)号：US11588359B2
公开(公告)日：2023-02-21
申请号：US17196182
申请日：2021-03-09
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Hiroaki Kinouchi , Tomohiro Suetsuna , Naoyuki Sanada , Masaya Hagiwara
IPC分类号： C22C33/00 , H01F1/08 , H02K1/02 , H02K1/14 , H02K21/24 , H02K1/24 , H02K1/2793 , H01F1/055
摘要： A rotating electric machine according to embodiments is a rotating electric machine including a rotor including a first core and being capable of rotating around a rotating shaft; and a stator disposed to face the rotor in the axial direction of the rotating shaft, the first core including a first pressed powder material having a plurality of first flaky magnetic metal particles and a first intercalated phase, the first flaky magnetic metal particles having an average thickness of from 10 nm to 100 μm, each first flaky magnetic metal particle having a first flat surface and a first magnetic metal phase including at least one first element selected from the group consisting of Fe, Co, and Ni, the average value of the ratio of the average length in the first flat surface with respect to the average thickness being from 5 to 10,000, the first intercalated phase existing between the first flaky magnetic metal particles and including at least one second element selected from the group consisting of oxygen (O), carbon (C), nitrogen (N), and fluorine (F), wherein in the first pressed powder material, the first flat surfaces are oriented approximately in parallel with a first principal plane of the first pressed powder material and have the difference in magnetic permeability on the basis of direction within the first principal plane, and the first principal plane of the first pressed powder material is disposed to be approximately perpendicular to the radial direction of the rotating electric machine.

13. 发明申请

US20220298613A1 PRESSED POWDER MATERIAL AND ROTATING ELECTRIC MACHINE 有权
公开(公告)号：US20220298613A1
公开(公告)日：2022-09-22
申请号：US17466784
申请日：2021-09-03
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Masaya Hagiwara , Tomohiro Suetsuna , Naoyuki Sanada , Hiroaki Kinouchi
IPC分类号： C22C38/10 , H02K1/02 , B22F1/00 , C22C38/02
摘要： A pressed powder material according to embodiments is a pressed powder material including first magnetic metal particles having a first magnetic metal phase containing Fe and Co; and second magnetic metal particles having a second magnetic metal phase containing Fe, in which when the amounts of Co with respect to the total amounts of Fe and Co of the first and second magnetic metal particles are designated as Co1 and Co2, respectively, the ratio of Co2 to Co1 (Co2/Co1) is from 0 to 0.5, the average value of the ratio of the major axis to the minor axis is 2 or greater for the first magnetic metal particles and 1 or greater for the second magnetic metal particles, the second magnetic metal particles are present between the particles of the first magnetic metal particles, and the average value of the major axis of the second magnetic metal particles is equal to or longer than the average value of the major axis of the first magnetic metal particles.

14. 发明申请

US20190283127A1 PLURALITY OF FLAKY MAGNETIC METAL PARTICLES, PRESSED POWDER MATERIAL, AND ROTATING ELECTRIC MACHINE 审中-公开
公开(公告)号：US20190283127A1
公开(公告)日：2019-09-19
申请号：US16106636
申请日：2018-08-21
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Hiroaki Kinouchi , Tomohiro Suetsuna , Takahiro Kawamoto , Yasuyuki Hotta
IPC分类号： B22F1/00 , H01F1/24 , H02K1/02 , B22F1/02 , B22F9/04 , B22F3/02
摘要： Provided is a plurality of flaky magnetic metal particles of embodiments, each flaky magnetic metal particle having a flat surface having either or both of a plurality of concavities and a plurality of convexities, the concavities or convexities being arranged in a first direction and each having a width of 0.1 μm or more, a length of 1 μm or more, and an aspect ratio of 2 or higher; and a magnetic metal phase containing at least one primary element selected from the group consisting of iron (Fe), cobalt (Co), and nickel (Ni). The flaky magnetic metal particles have an average thickness of between 10 nm and 100 μm inclusive, and the average value of the ratio of the average length within the flat surface with respect to the thickness is between 5 and 10,000 inclusive.

15. 发明授权

US11459645B2 Plurality of flaky magnetic metal particles, pressed powder material, and rotating electric machine 有权
公开(公告)号：US11459645B2
公开(公告)日：2022-10-04
申请号：US16922013
申请日：2020-07-07
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Tomohiro Suetsuna , Hiroaki Kinouchi , Takahiro Kawamoto
IPC分类号： H01F1/24 , H02K1/02 , C22C38/10 , C21D9/52 , C21D8/02 , C21D6/00 , B22F9/04 , B22F3/02 , B22F3/24 , C22C38/02 , H02K15/00 , H01F41/02 , H01F1/26
摘要： Provided is a plurality of flaky magnetic metal particles of the embodiments, each flaky magnetic metal particle having a flat surface provided with either or both of a plurality of concavities and a plurality of convexities arranged in a first direction, each concavity or convexity having a width of 0.1 μm or more, a length of 1 μm or more, and an aspect ratio of 2 or higher; and at least one first element selected from the group consisting of iron (Fe), cobalt (Co), and nickel (Ni), the flaky magnetic metal particles having an average thickness of between 10 nm and 100 μm inclusive and an average aspect ratio of between 5 and 10,000 inclusive.

16. 发明授权

US10774404B2 Plurality of flaky magnetic metal particles, pressed powder material, and rotating electric machine 有权
公开(公告)号：US10774404B2
公开(公告)日：2020-09-15
申请号：US15693704
申请日：2017-09-01
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Tomohiro Suetsuna , Hiroaki Kinouchi , Takahiro Kawamoto
IPC分类号： C22C38/10 , B22F3/02 , B22F3/24 , H01F1/24 , H02K1/02 , C21D9/52 , C21D8/02 , C21D6/00 , B22F9/04 , C22C38/02 , H02K15/00 , H01F41/02 , H01F1/26
摘要： Provided is a plurality of flaky magnetic metal particles of the embodiments, each flaky magnetic metal particle having a flat surface provided with either or both of a plurality of concavities and a plurality of convexities arranged in a first direction, each concavity or convexity having a width of 0.1 μm or more, a length of 1 μm or more, and an aspect ratio of 2 or higher; and at least one first element selected from the group consisting of iron (Fe), cobalt (Co), and nickel (Ni), the flaky magnetic metal particles having an average thickness of between 10 nm and 100 μm inclusive and an average aspect ratio of between 5 and 10,000 inclusive.

17. 发明申请

US20200035391A1 FLAKY MAGNETIC METAL PARTICLES, PRESSED POWDER MATERIAL, ROTATING ELECTRIC MACHINE, MOTOR, AND GENERATOR 审中-公开
公开(公告)号：US20200035391A1
公开(公告)日：2020-01-30
申请号：US16045205
申请日：2018-07-25
申请人： Kabushiki Kaisha Toshiba
发明人： Tomohiro Suetsuna , Tomoko Eguchi , Hiroaki Kinouchi
IPC分类号： H01F1/055 , B22F1/00 , H01F1/20
摘要： The flaky magnetic metal particles of the embodiments include a plurality of flaky magnetic metal particles, each of the flaky magnetic metal particles including a first magnetic particle including a flat surface, at least one first element selected from the group consisting of Fe, Co and Ni, an average ratio between the maximum length and the minimum length in the flat surface being between 1 and 5 inclusive, an average thickness of the first magnetic particles being between 10 nm and 100 μm inclusive, an average aspect ratio of the first magnetic particles being between 5 and 10000 inclusive; and a plurality of second magnetic particles disposed on the flat surface, an average number of the second magnetic particles being five or more, an average diameter of the second magnetic particles being between 10 nm and 1 μm inclusive.

18. 发明申请

US20190238021A1 MAGNETIC WEDGE AND ROTATING ELECTRICAL MACHINE 审中-公开
公开(公告)号：US20190238021A1
公开(公告)日：2019-08-01
申请号：US16274372
申请日：2019-02-13
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Hiroaki Kinouchi , Tomohiro Suetsuna , Takahiro Kawamoto
IPC分类号： H02K3/493 , H01F1/055
CPC分类号： H02K3/493 , H01F1/055
摘要： The magnetic wedge of embodiments is a magnetic wedge used for a rotating electrical machine and includes magnetic bodies having a planar structure having a principal plane. The principal planes of the magnetic bodies are disposed approximately perpendicularly to the air-gap surface between a stator and a rotor of a rotating electrical machine. The magnetic bodies have differences in the axial direction magnetic permeability in the axial direction of the rotating electrical machine, the rotational direction magnetic permeability in the direction of rotation, and the diametric direction magnetic permeability in the direction of the diameter.

19. 发明授权

US10090088B2 Soft magnetic material, rotating electric machine, motor, and generator 有权
公开(公告)号：US10090088B2
公开(公告)日：2018-10-02
申请号：US15259391
申请日：2016-09-08
申请人： Kabushiki Kaisha Toshiba
发明人： Tomohiro Suetsuna , Tomoko Eguchi , Kouichi Harada , Seiichi Suenaga , Hiroaki Kinouchi
IPC分类号： H01F1/14 , H01F1/147 , H02K1/14 , H02K1/22 , H01F1/28 , H01F3/08 , H02K1/02
摘要： The soft magnetic material of embodiments includes flattened magnetic metal particles including at least one magnetic metal selected from iron (Fe), cobalt (Co) and nickel (Ni), each of the flattened magnetic metal particles having a thickness of from 10 nm to 100 μm, an aspect ratio of from 5 to 10,000, and a lattice strain of from 0.01% to 10%, and being oriented with magnetic anisotropy in one direction within aligned flattened surface; and an interposed phase existing between the flattened magnetic metal particles and including at least one of oxygen (O), carbon (C), nitrogen (N) and fluorine (F).

20. 发明申请

US20180258513A1 PLURALITY OF FLAKY MAGNETIC METAL PARTICLES, PRESSED POWDER MATERIAL, AND ROTATING ELECTRIC MACHINE 审中-公开
公开(公告)号：US20180258513A1
公开(公告)日：2018-09-13
申请号：US15693704
申请日：2017-09-01
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Tomohiro Suetsuna , Hiroaki Kinouchi , Takahiro Kawamoto
IPC分类号： C22C38/10 , C22C38/02 , C21D9/52 , C21D8/02 , C21D6/00 , B22F9/04 , B22F3/02 , B22F3/24
CPC分类号： C22C38/10 , B22F3/02 , B22F3/24 , B22F9/04 , B22F2003/248 , B22F2009/043 , B22F2009/048 , B22F2202/05 , B22F2301/35 , C21D6/007 , C21D6/008 , C21D8/0205 , C21D8/0247 , C21D9/52 , C22C38/02 , H01F1/24 , H01F1/26 , H01F41/0246 , H02K1/02 , H02K15/00
摘要： Provided is a plurality of flaky magnetic metal particles of the embodiments, each flaky magnetic metal particle having a flat surface provided with either or both of a plurality of concavities and a plurality of convexities arranged in a first direction, each concavity or convexity having a width of 0.1 μm or more, a length of 1 μm or more, and an aspect ratio of 2 or higher; and at least one first element selected from the group consisting of iron (Fe), cobalt (Co), and nickel (Ni), the flaky magnetic metal particles having an average thickness of between 10 nm and 100 μm inclusive and an average aspect ratio of between 5 and 10,000 inclusive.

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