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公开(公告)号：US10700374B2
公开(公告)日：2020-06-30
申请号：US15817340
申请日：2017-11-20
Inventor： Hideki Nakata , Kunihiro Ukai , Masakazu Aoki
IPC: H01M8/12 , H01M8/04007 , H01M8/0612 , H01M8/04014 , H01M8/04089 , H01M8/1246 , H01M8/14 , H01M8/124
Abstract: A high-temperature operating fuel cell system includes: a fuel cell stack that generates electric power through an electrochemical reaction of an oxidant gas and a reformed gas; a combustor that combusts a cathode off-gas and an anode off-gas; a reformer that generates the reformed gas from a raw material by utilizing heat of an exhaust gas generated by the combustor; a first preheater; a second preheater that preheats the oxidant gas through heat exchange with the exhaust gas and supplies the preheated oxidant gas to the cathode of the fuel cell stack; a casing that contains these components; and a first heat insulator that covers at least part of the casing, wherein the first preheater covers the first heat insulator and preheats the oxidant gas by heat transferred from the casing through the first heat insulator before the oxidant gas is supplied to the second preheater.
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公开(公告)号：US09991527B2
公开(公告)日：2018-06-05
申请号：US15130940
申请日：2016-04-16
Inventor： Hideki Nakata , Kunihiro Ukai , Masakazu Aoki , Norio Katsushita
IPC: H01M8/04 , H01M8/12 , F28D9/00 , H01M8/04007 , H01M8/04014 , F28D21/00
CPC classification number: H01M8/04074 , F28D9/005 , F28D9/0056 , F28D2021/0043 , H01M8/04014 , H01M8/12
Abstract: A heat exchanger, in which heat is exchanged between first and second mediums, includes a housing that includes a first inlet and a first outlet, an internal member that divides a space in the housing into first and second chambers, and first and second external channels, through which the first medium flows, in the respective first and second chambers. The internal member includes a diverging hole that divides the first medium into flows through the first and second external channels, a converging hole that allows the divided first medium to converge, a second inlet, a second outlet, and an internal channel through which the second medium flows. The first and second external channels each include a first bent portion bent inwardly at a peripheral portion of the first or second chamber. The internal channel includes a second bent portion bent inwardly at a peripheral portion of the internal member.
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公开(公告)号：US10122027B2
公开(公告)日：2018-11-06
申请号：US15419365
申请日：2017-01-30
Inventor： Kunihiro Ukai , Hideki Nakata , Aichi Aida
IPC: H01M8/04014 , H01M8/04701 , H01M8/0612 , H01M8/0662 , H01M8/2425
Abstract: A high-temperature operating fuel-cell module includes a fuel-cell stack; a fuel-cell stack container in which the fuel-cell stack is contained and cathode off-gas discharged from the fuel-cell stack flows; a cathode off-gas collector that is provided in the fuel-cell stack container and in which the cathode off-gas is collected; an anode off-gas passage through which anode off-gas discharged from the fuel-cell stack flows; and a combustor that combusts the cathode off-gas collected in the cathode off-gas collector and the anode off-gas flowing through the anode off-gas passage, the combustor comprising: a combustion chamber in which the anode and cathode off-gas are mixed and combusted, an ejector that is connected to the anode off-gas passage and ejects the anode off-gas into the combustion chamber, and a diffusion plate that surrounds the ejector so that the ejector is located at the center of the diffusion plate, and ejects the cathode off-gas into the combustion chamber.
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Patent Agency Ranking
公开(公告)号：US09543858B2
公开(公告)日：2017-01-10
申请号：US14440341
申请日：2014-07-04
Inventor： Osamu Kusumoto , Hideki Nakata , Keiji Akamatsu , Masao Uchida
IPC: H01L27/02 , H01L27/112 , H01L29/74 , H01L29/06 , H02M7/5387 , H01L21/76 , H02M1/08 , H02M1/32 , H02M7/00 , H02M7/797 , H01L21/82 , H01L29/10 , H01L29/16 , H01L29/78 , H02M1/00
CPC classification number: H02M7/5387 , H01L21/76 , H01L21/8213 , H01L29/0642 , H01L29/0646 , H01L29/0696 , H01L29/1095 , H01L29/1608 , H01L29/4236 , H01L29/7802 , H01L29/7815 , H01L29/7827 , H01L29/7828 , H02M1/08 , H02M1/32 , H02M7/003 , H02M7/797 , H02M2001/0009
Abstract: A semiconductor device includes a gate pad, a first source pad and a second source pad insulated from each other, a drain pad, a main region, and a sense region for detecting a forward current and a reverse current. The main region and the sense region each include a plurality of unit cells which are in parallel connection, the number of unit cells in the sense region being smaller than the number of unit cells in the main region. A source electrode of any unit cell in the main region is connected to the first source pad, and a source electrode of any unit cell in the sense region is connected to the second source pad.
Abstract translation: 半导体器件包括彼此绝缘的栅极焊盘，第一源极焊盘和第二源极焊盘，漏极焊盘，主要区域和用于检测正向电流和反向电流的感测区域。 主区域和感测区域各自包括并联连接的多个单位单元，感测区域中的单位单元的数量小于主区域中的单位单元的数量。 主区域中的任何单电池的源电极连接到第一源极焊盘，并且感测区域中的任何单电池的源电极连接到第二源极焊盘。
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公开(公告)号：US11770068B2
公开(公告)日：2023-09-26
申请号：US17667324
申请日：2022-02-08
Inventor： Hideki Nakata , Atsushi Seki
CPC classification number: H02M1/4233 , H02M1/0085 , H02M1/36 , H02M7/125 , H02M1/0083 , H02M7/1555 , H02M7/1626
Abstract: In a switching power supply device, a control circuit controls a first thyristor, a second thyristor, and a switching element according to an input voltage. The control circuit maintains the first thyristor in an on state while maintaining the second thyristor and the switching element in an off state in a first period in which the absolute amplitude value is equal to or less than a first threshold value within the latter half of a first half-cycle of the input voltage at startup, and maintains the second thyristor in an on state while maintaining the first thyristor and the switching element in an off state in a second period in which the absolute amplitude value is equal to or less than a second threshold value within the latter half of a second half-cycle of the input voltage at startup. The second half-cycle is the half-cycle following the first half-cycle.
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公开(公告)号：US11695324B2
公开(公告)日：2023-07-04
申请号：US17404229
申请日：2021-08-17
Inventor： Junichi Yukawa , Zenyou Tei , Hiroyuki Handa , Hideki Nakata
Abstract: A power converter according to the present disclosure includes a cooling plate and a plurality of circuit elements. The cooling plate includes a first cooling surface and a second cooling surface on an opposite side from the first cooling surface. The cooling plate is provided with a through hole passing through between the first and second cooling surfaces. The circuit elements convert AC power supplied from an external power source into DC power of a certain voltage and output the DC power. The circuit elements at least include first and second circuit elements. The first circuit element includes a first terminal and is thermally connected to the first cooling surface. The second circuit element includes a second terminal electrically connected to the first terminal and inserted into the through hole, and is thermally connected to the second cooling surface.
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公开(公告)号：US11431005B2
公开(公告)日：2022-08-30
申请号：US15936516
申请日：2018-03-27
Inventor： Hideki Nakata , Kunihiro Ukai , Masakazu Aoki
IPC: H01M8/04014 , H01M8/04007 , H01M8/04537 , H01M8/04664 , H01M8/04701 , H01M8/04746 , H01M8/0612 , H01M8/04089 , H01M8/04303 , H01M8/04313 , H01M8/0432 , H01M8/0438 , H01M8/04955 , H01M8/1246 , H01M8/2425 , H01M8/12
Abstract: Disclosed is a high-temperature operating fuel cell system including: a fuel cell stack; a combustor that combusts a cathode off-gas and an anode off-gas; a heat insulator that covers at least part of the fuel cell stack and at least part of the combustor; a first preheater that covers at least part of the heat insulator and preheats an oxidant gas; an oxidant gas feeder that supplies the oxidant gas to the first preheater; a vacuum heat insulator that covers at least part of the first preheater; a sensor that detects information indicating stopping of a power generation operation; and a controller. When a determination is made that the power generation has stopped, the controller controls the oxidant gas feeder to supply the oxidant gas to the first preheater so that the temperature of the vacuum heat insulator is equal to or lower than a prescribed temperature.
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公开(公告)号：US10573906B2
公开(公告)日：2020-02-25
申请号：US15490824
申请日：2017-04-18
Inventor： Hideki Nakata , Kunihiro Ukai , Masakazu Aoki
IPC: H01M8/04014 , H01M8/1231 , H01M8/0612 , H01M8/124 , F28F1/08 , F28D7/10 , H01M8/2475 , H01M8/04089 , F28F1/06 , F28D7/12 , H01M8/04007 , H01M8/0662 , F28D21/00 , H01M8/04082
Abstract: A fuel cell device includes: a reformer that generates a reformed gas; a fuel cell; a combustor that combusts off-gas of the reformed gas and air for power generation, and generates a combustion exhaust gas; a first air heat exchanger that has a combustion exhaust gas path and a first air supply path, and that performs heat exchange between the combustion exhaust gas and the air for power generation; a fuel cell storage which stores the fuel cell; a second air heat exchanger that has a second air supply path that supplies the air for power generation to the fuel cell, and that performs heat exchange between the off-gas of the air for power generation and the air for power generation; and a housing that stores members. The first air supply path and the second air supply path are disposed to cover whole members stored in the housing.
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