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公开(公告)号：US12113010B2
公开(公告)日：2024-10-08
申请号：US17754238
申请日：2019-11-15
发明人： Shigeto Fujita , Tetsuya Matsuda
IPC分类号： H01L23/50 , H01L21/56 , H01L23/00 , H01L23/31 , H01L25/065 , H01L25/07 , H01L25/075
CPC分类号： H01L23/50 , H01L21/56 , H01L23/3107 , H01L24/37 , H01L24/40 , H01L24/83 , H01L24/97 , H01L25/0652 , H01L25/072 , H01L25/0753 , H01L2924/181
摘要： A semiconductor device includes a plurality of semiconductor chips, an insulating part, a first electrode, a second electrode, a first bus bar, and a second bus bar. The insulating part surrounds the semiconductor chips. The first electrode is in pressure contact with the semiconductor chips. The semiconductor chips are sandwiched between the first electrode and the second electrode in a first direction. The second electrode is in pressure contact with the semiconductor chips. The first bus bar is connected to the first electrode. The second bus bar is connected to the second electrode. The first bus bar and the second bus bar sandwich the insulating part in a second direction intersecting the first direction.
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公开(公告)号：US11982472B2
公开(公告)日：2024-05-14
申请号：US17927744
申请日：2020-07-17
发明人： Atsushi Ogasahara , Shun Tonooka , Tetsuya Matsuda
IPC分类号： F25B21/00
CPC分类号： F25B21/00 , F25B2321/002
摘要： A magnetic refrigeration device includes a magnetic heat container, a magnetic field generation device, a high temperature-side heat exchanger, a low temperature-side heat exchanger, and a pump. The magnetic heat container is filled with a magneto-caloric material. The pump is capable of transporting a heat transport medium in a reciprocable manner between the high temperature-side heat exchanger and the low temperature-side heat exchanger via the magnetic heat container. The magnetic heat container has a spiral shape extending in a spiral on an identical plane and allows the heat transport medium transported by the pump to flow along the spiral shape.
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公开(公告)号：US10690732B2
公开(公告)日：2020-06-23
申请号：US15766238
申请日：2016-08-22
发明人： Tetsuya Matsuda , Kazuo Yamamoto
摘要： A magnetic field measuring method includes: a first radial-magnetic-field measuring using a magnetic field measuring element placed at an offset position apart from the coil axis, to thereby measure, at the offset position, first radial magnetic fields along an offset axis parallel to the coil axis; a second radial-magnetic-field measuring using the magnetic field measuring element after being rotated by a set angle, to thereby measure, at the offset position, second radial magnetic fields along the offset axis; and a center-position determining the inter-coil center position, based on a first radial-magnetic-field characteristic that is a characteristic in a direction of the offset axis of the first radial magnetic fields, and a second radial-magnetic-field characteristic that is a characteristic in the direction of the offset axis of the second radial magnetic fields.
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公开(公告)号：US11705424B2
公开(公告)日：2023-07-18
申请号：US16629658
申请日：2017-08-31
发明人： Shigeto Fujita , Tetsuya Matsuda
IPC分类号： H01L23/00
CPC分类号： H01L24/72
摘要： A spring electrode for a press-pack power semiconductor module includes a first electrode in contact with a power semiconductor chip, a second electrode arranged to face the first electrode, and a pressure pad which connects the first electrode and the second electrode and has flexibility in a normal direction of opposing surfaces of the first electrode and the second electrode. The opposing surfaces of the first electrode and the second electrode can be polygons of a pentagon or more, the pressure pad can be a cylindrical conductor or a plurality of wire conductors, and sides of the opposing surface of the first electrode and sides of the opposing surface of the second electrode corresponding to these sides are connected in parallel by the pressure pad.
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公开(公告)号：US09349529B2
公开(公告)日：2016-05-24
申请号：US14016574
申请日：2013-09-03
CPC分类号： H01F29/04 , H01H1/56 , H01H1/62 , H01H9/0016
摘要： In an end-side tap changing mechanism group of a plurality of tap changing mechanism groups that is located at an end of a rotation shaft, input connection points between a plurality of fixed contact connection members and a plurality of input conductors, respectively, are located closer in a shaft direction of the rotation shaft to a center line of entire the plurality of tap changing mechanism groups than a center line of the end-side tap changing mechanism group, and an output connection point between a stator connection member and an output conductor is located closer in the shaft direction of the rotation shaft to the center line of entire the plurality of tap changing mechanism groups than the center line of the end-side tap changing mechanism group.
摘要翻译： 在位于旋转轴的端部的多个分接变换机构组的末端侧抽头切换机构组中，分别位于多个固定接触连接构件和多个输入导体之间的输入连接点 更靠近旋转轴的轴方向，与端侧抽头变换机构组的中心线相比，整个多个分接变换机构组的中心线和定子连接部件与输出导体之间的输出连接点 沿着端部抽头变换机构组的中心线，比旋转轴的轴方向更靠近整个多个抽头变换机构组的中心线。
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公开(公告)号：US11824048B2
公开(公告)日：2023-11-21
申请号：US17251153
申请日：2018-09-20
发明人： Shigeto Fujita , Tetsuya Matsuda
CPC分类号： H01L25/072 , H01L23/50 , H05K1/181 , H05K2201/10272 , H05K2201/10507
摘要： An uneven current distribution among a plurality of provided power semiconductor chips is to be suppressed. A power semiconductor module includes a module main body, a plurality of power semiconductor chips arranged on an upper surface of the module main body, and peripheral structures being insulating ferromagnets surrounding parts of a periphery of the module main body in a plan view, in which the plurality of power semiconductor chips are arranged in a vertical direction and a horizontal direction in a plan view, and at least one of the plurality of power semiconductor chips is arranged so as to be surrounded by other power semiconductor chips.
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公开(公告)号：US10658268B2
公开(公告)日：2020-05-19
申请号：US16095461
申请日：2016-09-09
发明人： Shigeto Fujita , Tetsuya Matsuda
摘要： A lower electrode, a semiconductor chip provided on the lower electrode, a pressure pad provided above or below the semiconductor chip, an upper electrode provided on a structure in which the pressure pad is overlapped with the semiconductor chip, and a connection conductor that provides a new current path between the lower electrode and the upper electrode only when a distance between the lower electrode and the upper electrode becomes larger than a predetermined value are provided. The distance between the lower electrode and the upper electrode is variable, and the pressure pad electrically connects the lower electrode and the upper electrode together via the semiconductor chip regardless of the distance between the lower electrode and the upper electrode.
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公开(公告)号：US10593633B2
公开(公告)日：2020-03-17
申请号：US16308551
申请日：2016-09-13
发明人： Shigeto Fujita , Tetsuya Matsuda
摘要： It is an object of the present invention to provide a semiconductor module which suppresses a break in a current path and occurrence of arc discharge when a semiconductor chip is short-circuited. A semiconductor module 100 according to the present invention includes at least one semiconductor chip 2, a housing 5 in which the semiconductor chip 2 is stored, and at least one pressurizing member which is placed between an upper electrode 2a of the semiconductor chip 2 and an upper-side electrode 3 provided in the housing 5 and electrically connects the upper electrode 2a and the upper-side electrode 3, the pressurizing member 10 is elastic, and the pressurizing member 10 includes a conductive block 12 and a plate spring member 11 including current paths 11a and 11b which are opposed to each other with at least a part of the conductive block 12 located between the current paths 11a and 11b.
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公开(公告)号：US11747054B2
公开(公告)日：2023-09-05
申请号：US17923602
申请日：2020-05-14
发明人： Tetsuya Matsuda , Shun Tonooka , Atsushi Ogasahara
IPC分类号： F25B21/00
CPC分类号： F25B21/00 , F25B2321/0023
摘要： A magnetic refrigerator including an electromagnet for magnetic refrigeration. The electromagnet for magnetic refrigeration includes: a return yoke; at least one pair of opposite magnetic poles disposed inside the return yoke and spaced from each other by a gap; a pipe disposed in the gap to pass a heat transport medium therethrough; a magnetocaloric member disposed inside the pipe to exchange heat with the heat transport medium; and a coil to surround at least one of the paired opposite magnetic poles to generate a magnetic flux passing across the gap when the coil is energized.
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10.发明授权公开(公告)号：US11363962B2
公开(公告)日：2022-06-21
申请号：US17042941
申请日：2019-03-05
发明人： Tetsuya Matsuda
IPC分类号： A61B5/0515 , G01R33/12 , H01F7/06 , H01F7/20
摘要： Provided is an electromagnetic device for magnetic particle imaging, including: a return yoke having a gap, which extends in a Y direction and forms a magnetic field space; a gradient magnetic field generating unit, which is provided to the return yoke, and is configured to generate, in the magnetic field space, a gradient magnetic field in an X direction, and to form, in the magnetic field space, a zero-field region extending in the Y direction; an alternating magnetic field generating unit, which is provided to the return yoke, and is configured to generate an alternating magnetic field in the magnetic field space; and a rotation mechanism configured to rotate the gradient magnetic field and the alternating magnetic field relative to a subject with a Z direction being a rotation axis.
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