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公开(公告)号：US20190089202A1
公开(公告)日：2019-03-21
申请号：US16198824
申请日：2018-11-22
Inventor： Eiji TAKAHASHI , Tsutomu SAKATA , Satoru KIKUCHI , Hiroshi KANNO
CPC classification number: H02J50/12 , B60L1/00 , B60L53/12 , B60L2210/30 , B60L2210/40 , H02J7/025 , H02J50/10 , H02J50/20 , H02J50/80 , H02M7/537 , Y02T10/7005 , Y02T10/7072 , Y02T10/7241 , Y02T90/122 , Y02T90/127 , Y02T90/14
Abstract: A power receiving device includes a power receiving antenna that receives AC power from a power transmitting antenna, a rectifier circuit that converts the AC power into DC power, a detection circuit that detects the DC power, a load driven by the DC power, a battery that charges the DC power, a switching circuit that provides i) connection and disconnection between the rectifier circuit and the load and ii) connection and disconnection between the load and the battery, and a control circuit that controls the power receiving device. The control circuit controls the switching circuit to disconnect the rectifier circuit from the load and connect the load to the battery if the DC power is less than or equal to a power threshold value, and drive the load by the DC power charged in the battery.
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公开(公告)号：US20220224159A1
公开(公告)日：2022-07-14
申请号：US17606194
申请日：2020-04-17
Inventor： Masato MATSUMOTO , Eiji TAKAHASHI , Hideaki MIYAMOTO , Tsutomu SAKATA
Abstract: A wireless power and data transmission apparatus includes an inner module and an outer module. The inner module includes: an annular-shaped first antenna disposed around an axis; and an annular-shaped first communication electrode disposed around the axis, the first communication electrode being at a different position from that of the first antenna regarding a direction along the axis. The outer module includes: an annular-shaped second antenna disposed around the axis, the second antenna performing power transmission or power reception with the first antenna via magnetic field coupling or electric field coupling; and an annular-shaped second communication electrode disposed around the axis, the second communication electrode being at a different position from that of the second antenna regarding the direction along the axis, and the second antenna performing communications with the first communication electrode via electric field coupling.
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Patent Agency Ranking
3.发明申请公开(公告)号：US20190123593A1
公开(公告)日：2019-04-25
申请号：US16227058
申请日：2018-12-20
Inventor： Eiji TAKAHASHI , Hideaki MIYAMOTO
IPC: H02J50/40 , H02J7/02 , H02P27/06 , H02J50/12 , H02J50/80 , B25J19/00 , H01F38/14 , H02P3/18 , B25J9/12
CPC classification number: H02J50/40 , B25J9/12 , B25J19/0045 , H01F38/14 , H02J7/025 , H02J50/12 , H02J50/70 , H02J50/80 , H02P3/18 , H02P27/06
Abstract: A wireless power feeding unit includes a power transmitting module and a power receiving module. The power transmitting module includes: a first inverter circuit which is connected to a power source via a switch; a first transmission coil connected to the first inverter circuit; a second inverter circuit which is connected to the power source or another power source not via the switch; a second transmission coil which is connected to the second inverter circuit; and a power transmission control circuit which controls the first and second inverter circuits. The power receiving module includes a first reception coil opposed to the first transmission coil and a second reception coil opposed to the second transmission coil. During operation of the first and second inverter circuits, even while supply of power to the first inverter circuit is stopped, the power transmission control circuit maintains control of the second inverter circuit.
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4.发明申请公开(公告)号：US20180152056A1
公开(公告)日：2018-05-31
申请号：US15825763
申请日：2017-11-29
Inventor： Eiji TAKAHASHI , Hideaki MIYAMOTO
CPC classification number: H02J50/40 , B25J9/12 , B25J19/0045 , H01F38/14 , H02J7/025 , H02J50/12 , H02J50/80 , H02P3/18 , H02P27/06
Abstract: A wireless power feeding unit includes a power transmitting module and a power receiving module. The power transmitting module includes: a first inverter circuit which is connected to a power source via a switch; a first transmission coil connected to the first inverter circuit; a second inverter circuit which is connected to the power source or another power source not via the switch; a second transmission coil which is connected to the second inverter circuit; and a power transmission control circuit which controls the first and second inverter circuits. The power receiving module includes a first reception coil opposed to the first transmission coil and a second reception coil opposed to the second transmission coil. During operation of the first and second inverter circuits, even while supply of power to the first inverter circuit is stopped, the power transmission control circuit maintains control of the second inverter circuit.
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公开(公告)号：US20240039331A1
公开(公告)日：2024-02-01
申请号：US18255976
申请日：2020-12-09
Inventor： Hideaki MIYAMOTO , Eiji TAKAHASHI , Tsutomu SAKATA
CPC classification number: H02J50/005 , H02J50/70 , H02J50/10 , H02J50/90 , H01F38/14 , H01F27/36 , B60L53/12
Abstract: A wireless power supply unit includes: a power transmitting coil; and a power receiving coil that wirelessly receives electric power from the power transmitting coil. One of the power transmitting coil and the power receiving coil is shaped so that, during use, a central portion thereof is located beyond an outer peripheral portion thereof, as viewed from another one of the power transmitting coil and the power receiving coil.
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公开(公告)号：US20180240621A1
公开(公告)日：2018-08-23
申请号：US15884035
申请日：2018-01-30
Inventor： Yasuhito OOMORI , Tatsuya TOBIMATSU , Noboru TAKADA , Eiji TAKAHASHI , Izumi SATO
CPC classification number: H01H13/48 , H01H13/04 , H01H13/84 , H01H2215/004 , H01H2215/006 , H01H2215/03 , H01H2217/004 , H01H2221/05 , H01H2231/046 , H04N5/2252
Abstract: A pressing switch mechanism includes a housing, a board that is accommodated in the housing, a switch portion that is fixed to the board and generates a click feeling according to pressing a pressed portion in a direction approaching the board, and an operation plate which includes a bowl-shaped recessed surface that is recessed from a surface of the housing, of which an outer peripheral edge is supported by the housing, which is displaceably bent in the direction approaching the board, and in which a bottom wall portion of the recessed surface protruding inward the housing is in contact with the pressed portion.
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7.发明申请公开(公告)号：US20180205266A1
公开(公告)日：2018-07-19
申请号：US15865975
申请日：2018-01-09
Inventor： Hideaki MIYAMOTO , Satoru KIKUCHI , Tsutomu SAKATA , Eiji TAKAHASHI , Hiroshi KANNO
Abstract: A power transmitter wirelessly transmits electric power to a power receiver that includes a reception antenna. The power transmitter includes: an inverter circuit; a transmission antenna which sends out the AC power having been output from the inverter circuit; and a control circuit which, based on measurement values of voltage and current to be input to the inverter circuit, determines a value of a control parameter defining an output voltage from the inverter circuit and controls the inverter circuit by using the determined value of the control parameter. When at least one of the measurement values of voltage and current to be input to the inverter circuit changes, the control circuit changes the value of the control parameter based on the measurement values of voltage and current so that a voltage to be output from the power receiving circuit is maintained within a predetermined range.
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