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公开(公告)号：US20230184862A1
公开(公告)日：2023-06-15
申请号：US17912042
申请日：2020-04-16
发明人： Kota NOMURA , Kodai KATAGIRI , Tetsuya MATSUDA , Shun TONOOKA , Kazuki YAMAUCHI
IPC分类号： G01R33/563 , G01R33/3815
CPC分类号： G01R33/56375 , G01R33/3815 , G01R33/3804
摘要： A static magnetic field generator generates a non-magnetic field region. An AC magnetic field application instrument applies an AC magnetic field to the non-magnetic field region. A detection coil has an axis parallel to a direction of the AC magnetic field in order to detect a magnetization signal. A measuring instrument is connected to the detection coil. A resonance frequency variable device includes a capacitor connected in parallel to the detection coil in order to adjust a resonance frequency of the detection coil and the measuring instrument. A capacity of the capacitor is adjusted such that a resonance frequency of a closed circuit including the detection coil, the measuring instrument, and the resonance frequency variable device including the capacitor coincides with a frequency of a harmonic signal.
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公开(公告)号：US20240268747A1
公开(公告)日：2024-08-15
申请号：US18290313
申请日：2021-05-18
发明人： Shun TONOOKA , Kota NOMURA , Kazuki YAMAUCHI , Tetsuya MATSUDA , Takami TOMIYAMA , Tomohiro UMEDA , Satoshi SEINO , Toshiyasu SAKANE , Akiko KATSUMI , Toshihiko KIWA , Akihiro IZAWA
IPC分类号： A61B5/00 , A61B5/0515
CPC分类号： A61B5/4088 , A61B5/0042 , A61B5/0515
摘要： A biological information detection device includes an administration mechanism (10) to administer magnetic particles into a brain, the magnetic particles being bound to a target inside the brain, a first varying magnetic field application mechanism (12a, 12b) to apply a first varying magnetic field to the magnetic particles from outside the brain, a magnetic signal detection mechanism (13a, 13b) to detect a magnetic signal generated by the magnetic particles bound to the target due to the first varying magnetic field, and a determiner (14) to determine an amount of the target based on a strength of the magnetic signal.
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公开(公告)号：US20230204261A1
公开(公告)日：2023-06-29
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 comprises 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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公开(公告)号：US20230071315A1
公开(公告)日：2023-03-09
申请号：US17799277
申请日：2020-04-20
发明人： Shun TONOOKA , Atsushi OGASAHARA , Tetsuya MATSUDA
IPC分类号： F25B21/00
摘要： Provided are a refrigeration cycle device and a magnetic refrigeration device capable of suppressing an increase in device size, an increase in complexity, and an increase in cost. A magnetic refrigeration device includes a magnetocaloric material, first piping, second piping, a magnetic field generating unit, and a switching unit. The first piping supplies a refrigerant to the magnetocaloric material in a first refrigerant direction. The second piping supplies the refrigerant to the magnetocaloric material in a second refrigerant direction. The magnetic field generating unit is capable of applying a magnetic field to the magnetocaloric material. The switching unit switches between a first state and a second state in response to the magnetic field. In the first state, the refrigerant is supplied from the first piping to the magnetocaloric material. In the second state, the refrigerant is supplied from the second piping to the magnetocaloric material.
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公开(公告)号：US20200303338A1
公开(公告)日：2020-09-24
申请号：US16738592
申请日：2020-01-09
发明人： Yoshitaka OTSUBO , Shun TONOOKA , Tetsuya MATSUDA
IPC分类号： H01L23/00
摘要： A semiconductor device includes a semiconductor element, a terminal electrode, and internal wiring. The semiconductor element is housed in a case. The terminal electrode is provided electrically connectable to an outside of the case. The internal wiring is provided in the case and electrically connects the semiconductor element and the terminal electrode. The internal wiring includes a fuse portion provided at a part of the internal wiring and configured to be melted by an overcurrent. The fuse portion includes a plurality of metal wires which are a group of parallel wires. Of the plurality of metal wires, a first metal wire is higher in resistance value than a second metal wire laid on an outer side relative to the first metal wire.
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公开(公告)号：US20240274341A1
公开(公告)日：2024-08-15
申请号：US18283828
申请日：2021-04-01
CPC分类号： H01F7/064 , F25B21/00 , F25B2321/0022 , F25B2321/0023
摘要： A magnetic field application device applying a magnetic field to a magnetocaloric material includes: a magnetic field generating component; a first yoke connected to both poles of the magnetic field generating component; and a second yoke movably disposed between a first position and a second position. A first closed magnetic circuit formed by the magnetic field generating component and the first yoke passes through a magnetic field application region in which the magnetocaloric material is accommodated. A second closed magnetic circuit formed by the magnetic field generating component, the first yoke, and the second yoke bypasses the magnetic field application region. Magnetic resistance of the second closed magnetic circuit when the second yoke is located at the second position is smaller than the magnetic resistance of the second closed magnetic circuit when the second yoke is located at the first position.
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公开(公告)号：US20230204262A1
公开(公告)日：2023-06-29
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：US20230152010A1
公开(公告)日：2023-05-18
申请号：US17919309
申请日：2020-05-28
发明人： Atsushi OGASAHARA , Shun TONOOKA , Tetsuya MATSUDA
IPC分类号： F25B21/00
CPC分类号： F25B21/00 , F25B2321/0022 , F25B2500/05
摘要： A magnetic heat pump includes magnetocaloric members, an impeller, deformable members, a casing, an electric motor, and a magnetic field generator. The impeller has accommodation chambers. The deformable members face the accommodation chambers. The casing has an interior space accommodating the magnetocaloric members, the impeller, and the deformable members and allowing a heat transport medium to circulate, a first inlet, and a first outlet spaced apart from the first inlet in the circumferential direction. The magnetic field generator produces a magnetic field becoming stronger along the first direction, in a first region extending from the first inlet to the first outlet in the first direction in the interior space. The shapes of the deformable members individually change with the rotation. The volumes of the accommodation chambers individually increase and decrease with change in shape of the deformable members.
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