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Patent Agency Ranking
公开(公告)号：US20180215277A1
公开(公告)日：2018-08-02
申请号：US15746327
申请日：2016-05-27
Inventor： Futoshi DEGUCHI , Yoshio KOYANAGI , Kazuhiro EGUCHI , Katsuya OKAMOTO , Ryosuke HASABA
CPC classification number: B60L53/31 , B60L53/12 , B60L2200/32 , B63G8/001 , B63H19/00 , H02J7/025 , H02J50/12 , H02J50/40 , H02J50/50 , H04B5/0037 , Y02T10/7005
Abstract: A power transmission device is configured to transmit power underwater to an underwater vehicle having a power reception coil. The power transmission device includes a power transmission coil configured to transmit power to the power reception coil through a magnetic field, a power transmission unit configured to transmit an alternating current voltage having a frequency a 10 kHz or lower to the power transmission coil, and a first capacitor connected to the power transmission coil and configured to form a resonance circuit resonating at the frequency with the power transmission coil.
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公开(公告)号：US20210305846A1
公开(公告)日：2021-09-30
申请号：US17264203
申请日：2019-06-07
Inventor： Ryosuke HASABA , Kazuhiro EGUCHI , Yoshio KOYANAGI , Katsuya OKAMOTO , Souichi KAWATA , Tatsuo YAGI
Abstract: A power receiving device is disposed underwater. The power receiving device includes a housing formed of a weak magnetic material, a ferromagnetic body that surrounds an outer side of the housing and is formed of a ferromagnetic material, and a power receiving coil wound around an outer side of the ferromagnetic body.
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公开(公告)号：US20210281328A1
公开(公告)日：2021-09-09
申请号：US17194677
申请日：2021-03-08
Inventor： Kazuhiro EGUCHI , Souichi KAWATA , Katsuya OKAMOTO , Yoshio KOYANAGI
Abstract: An underwater communication device is provided and adapted to communicate data in water with another underwater communication device including another coil. The underwater communication device includes a first coil configured to transmit data to and from the other coil via a magnetic field, a second coil configured to transmit the data to and from the other coil via a magnetic field, and a supply unit configured to supply the data to at least one of the first coil and the second coil. A coil surface of the first coil and a coil surface of the second coil overlap each other.
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公开(公告)号：US20210006339A1
公开(公告)日：2021-01-07
申请号：US16754654
申请日：2019-01-29
Inventor： Kazuhiro EGUCHI , Souichi KAWATA , Katsuya OKAMOTO , Yoshio KOYANAGI
Abstract: A underwater communication device communicates data with another underwater communication device having another first coil and another second coil in water. The underwater communication device includes a first coil configured to transmit the data to and from the other first coil via a magnetic field, a second coil configured to transmit the data to and from the other second coil via a magnetic field, a supply unit configured to supply the data to the first coil and the second coil, a first capacitor connected to the first coil and forming a first resonance circuit that resonates with the first coil at a first resonance frequency, and a second capacitor connected to the second coil and forming a second resonance circuit that resonates with the second coil at a second resonance frequency that is different from the first resonance frequency.
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公开(公告)号：US20170307964A1
公开(公告)日：2017-10-26
申请号：US15646488
申请日：2017-07-11
Inventor： Katsuya OKAMOTO , Futoshi DEGUCHI
CPC classification number: G03B17/561 , G03B17/02 , G03B2217/007 , H01F38/14 , H01F38/18 , H02J50/10 , H04N5/2253
Abstract: An imaging device has a bearing that has a first ring and a second ring, a first plate that is disposed on one side of the bearing and fixed to the first ring, an imaging unit that is disposed on a side of the first plate, a second plate that is disposed on another side of the bearing and fixed to the second ring, a first inductor that is accommodated in the first plate, and a second inductor that faces the first inductor and is accommodated in the second plate.
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