Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Mitsubishi Cable Industries, Ltd.

Matsushita Electric Industrial Co., Ltd.

Honda Access Corporation

Panasonic Holdings Corporation

Katsuya Okamoto

Yoshio Koyanagi

Kazuhiro Eguchi

Ryosuke Hasaba

Souichi Kawata

Futoshi Deguchi

Toyokazu Yoshino

Shinji Morimoto

Tamaki Ura

Yasuo Oishi

Kouji Nakashima

Yasuyuki Nishimura

Shogo Tanno

Koji Nakashima

Shigeki Ogata

Tohru Kashioka

Tatsuo Yagi

Hisayuki Oga

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.

Power receiving device, power transmitting device, and underwater power supply system

A power transmitting device transmits power to a power receiving device having a power receiving coil in water. The power transmitting device includes a power transmitting coil configured to transmit the power to the power receiving coil via a magnetic field. The power transmitting device also includes a support member that supports the power transmitting coil, and one or more spacers that hold the transmitting coil and the support member.

Power transmitting device that transmits power to power receiving device having power receiving coil in water

An electric power transmission device transmits electric power to an electric power reception device including an electric power reception coil in water. The electric power transmission device includes one or more transmission coils which include an electric power transmission coil configured to transmit electric power to the electric power reception coil via a magnetic field, an electric power transmitter, configured to transmit AC power to the electric power transmission coil, a capacitor which is connected to the transmission coil and forms a resonance circuit which resonates with the transmission coil, a first tubular member which is waterproof and seals a periphery of the transmission coil, a second tubular member which surrounds the first tubular member and includes a plurality of holes, and an adjuster, configured to adjust an amount of air in a gap between the first tubular member and the second tubular member.

Electric power transmission device

A power transmitting device transmits power to a power receiving device having a power receiving coil, in water. The power transmitting device includes one or more annular transmitting coils including a power transmitting coil configured to transmit the power to the power receiving coil via a magnetic field, a support member located in an inner space of the transmitting coil, which is formed by the annular transmitting coil, the support member including an outer periphery along an inner periphery of the annular transmitting coil, and supporting the transmitting coil from the inner space, a power transmitting unit configured to supply A/C power to the power transmitting coil, and a capacitor connected to the transmitting coil, and forming a resonance circuit resonating together with the transmitting coil.

Power transmitting device

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.

Underwater communication device and underwater communication system

Provided is a transmission coil which can inhibit reduction in transmission efficiency during underwater non-contact electric power transmission. A transmission coil configured to transmit electric power in water includes an annular electric wire through which an alternating current flows, and a first cover which includes non-conductive resin or non-magnetic resin and seals a periphery of the electric wire. The electric wire transmits the electric power via a magnetic field generated by flowing of the alternating current.

Transmission coil and power transmission apparatus

An electric power transmission device capable of efficiently performing contactless electric power transmission to an underwater vehicle in water is provided. The electric power transmission device, which is an electric power transmission device transmitting electric power to an electric power reception device including an electric power reception coil in water, includes one or more transmission coils including an electric power transmission coil which transmits electric power to an electric power reception coil via a magnetic field, an electric power transmission unit which transmits AC power to an electric power transmission coil, a capacitor which is connected to the transmission coil and forms a resonant circuit which resonates with the transmission coil, and a buoyant body connected to at least one of the transmission coils.

A power transmission device transmits power underwater to a power reception device including a power reception coil. The power transmission device includes: a power transmission coil that transmits power to the power reception coil through a magnetic field; a power transmitter that transmits an alternating current power having a predetermined frequency to the power transmission coil; and a first capacitor that is connected to the power transmission coil and forms a resonance circuit resonating with the power transmission coil. The predetermined frequency is a frequency between a first frequency at which a geometric mean value of a Q value of the power transmission coil and a Q value of the power reception coil are the maximum and a second frequency at which the Q value of the power transmission coil and the Q value of the power reception coil are the same.

Power transmission device

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.

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.

Imaging device

Provided is an FPC, which comprises an insulating layer, wiring layersandlaminated above and under the insulating layer, and a layer connection for connecting the wiring layersandelectrically. The layer connection is constituted to comprise: a conductor press-fit holeof a cone shape extending through the insulating layerand the upper and lower wiring layersandand expanded to the side of one wiring layer; and a conductorfilled and press-fitted without any clearance in the conductor press-fit hole such that it is jointed to the wiring upper layerdeformed into the cone shape of the conductor press-fit hole, and is protruded from the other wiring lower layerto have its surface partially coated and jointed. As a result, the contact area between the wiring layersandand the conductorfilled in the conductor press-fit holecan be enlarged to retain the contact strength between the wiring layersandand the conductorsufficiently thereby to provide a high connection reliability for the layer connection.

Manufacturing method of flexible printed wiring board

A flexible printed wiring board has a configuration which is equipped with a solder resist portion formed by coating through the use of a screen printing method on a region including a component mounting portion of a conductor pattern, and a cover lay film pasted in such a manner that an outer circumference portion of an opening portion overlaps an upper portion of a circumference portion of the solder resist portion. A manufacturing method of a flexible printed wiring board of the invention has a configuration which is equipped with a conductor pattern forming process, a solder resist forming process, and a cover lay film pasting process.

Flexible printed wiring board and manufacturing method thereof

A grip heater control apparatus () capable of increasing the opportunities to enable a heater () to warm a grip () while suppressing a voltage drop of a battery (), the grip heater control apparatus comprising a heater () for generating heat by means of electric power supplied from the battery (), the heater being provided in a grip () of a steering handle of a vehicle having a generator () for generating electricity interlocking with the rotation of an engine as a propulsive source and the battery () charged by the generator (), and a heater control unit for controlling the electric energy supplied to the heater () from the battery (), wherein a revolutions detecting unit is provided for detecting the number of revolutions of the engine or the generator () and the heater control unit includes a unit for determining an upper limit on the upper limit electric energy supplied to the heater () depending on the detected number of revolutions.

Grip heater control apparatus

A multi-layered flexible print circuit board comprising an insulating layer, a circuit layer formed on the front and back surfaces of the insulating layer and a hole connecting between the circuit layers via the insulating layer, wherein there is provided an electrically-conductive member having a metal layer formed thereon at least on the surface thereof which is press-fitted into the hole to electrically conduct the circuit layer.

Multi-layered flexible print circuit board and manufacturing method thereof

A grip heater control apparatus enabling a driver to visually identifying the electrified condition of a heater and to control the temperature of the heater easily during vehicle driving and enabling the configuration for the temperature control and the visual identification to be space-saving. A single light emitter () is provided as an indicator along with heater temperature operators () at an end of a grip (). The indication control unit includes a unit for executing an operating state indication control process including a process of variably setting a first predetermined cycle, which is a blinking cycle of the light emitter (), according to target electric energy set by a target electric energy setting unit in response to an operation of the heater temperature operator () when operated and a process of blinking the light emitter () in the set first predetermined cycle.

Growing community of inventors

Fukuoka, Japan

Katsuya Okamoto