Patent application number | Description | Published |
20130234533 | Wireless Power Transmission System - A wireless power transmission system that includes a power transmission apparatus including a passive electrode and an active electrode and a power reception apparatus including passive electrodes and active electrode. When the power reception apparatus is longitudinally placed on the power transmission apparatus, the active electrodes are opposed to each other to cause electric power to be transmitted from the power transmission apparatus to the power reception apparatus. A facing area between the active electrodes in lateral placement of the power reception apparatus on the power transmission apparatus is made substantially equal to a facing area between the active electrodes in the longitudinal placement of the power reception apparatus on the power transmission apparatus. | 09-12-2013 |
20130270922 | POWER TRANSMITTING DEVICE AND POWER TRANSMISSION SYSTEM - A casing of a power transmitting device is provided with a power transmitting device side passive electrode, a power transmitting device side active electrode, and a power transmitting module. A jacket mounted on a terminal is provided with a power receiving device side passive electrode, a power receiving device side active electrode, a power receiving module, and a DC-DC converter. A heat sink portion with fins is formed on a portion of the power transmitting device side passive electrode. When the terminal is mounted on the power transmitting device, the power receiving device side passive electrode is electrically connected to the power transmitting device side passive electrode, and the power receiving device side active electrode faces the power transmitting device side active electrode. In this state, the heat of the power receiving module and the DC-DC converter is dissipated from the power transmitting device side passive electrode. | 10-17-2013 |
20140009363 | WIRELESS ANTENNA MODULE AND METHOD FOR PRODUCING SAME - A wireless antenna module includes: a housing made of a resin; an electroconductive layer provided on a front surface side of the housing; a top plate provided on a part of the electroconductive layer in a manner so as to be flush with a surface of the electroconductive layer; and a conduction terminal provided on a back surface side of the housing, and electrically connected to the electroconductive layer, passing through the housing, wherein the conduction terminal on the back surface side of the housing is provided in a position opposing the top plate on the front surface side of the housing. | 01-09-2014 |
20140015337 | POWER RECEIVING DEVICE HAVING TOUCH PANEL AND POWER TRANSMISSION SYSTEM FOR FEEDING POWER TO POWER RECEIVING DEVICE - To provide a power receiving device having high power-receiving efficiency, able to be fed with power in a short time, and having made lighter and thinner with a smaller number of parts, and a power transmission system for feeding power to the power receiving device with high efficiency, the power receiving device has a resistive film type touch panel which has a movable transparent electrode membrane and a fixed transparent electrode membrane and causes a control unit to perform control to selectively switch between a position detecting circuit which detects a contact position on the touch panel and a power receiving circuit which supplies power received by using a movable transparent electrode as a power receiving electrode in an electric field coupling system to a secondary battery, and the power transmission system includes a power transmitting device which has a power transmission electrode for transmitting power by the electric field coupling system by using the movable transparent electrode membrane as a power receiving electrode in response to the power receiving device placed on the power transmitting device. | 01-16-2014 |
20140175906 | WIRELESS POWER TRANSMISSION SYSTEM - In a power transmitter device, a power transmitter side active electrode and a power transmitter side passive electrode are formed. In a power receiver device, a power receiver side active electrode and a power receiver side passive electrode are formed. The power transmitter side active electrode is rectangle that is shorter in a first direction and longer in a second direction. The power receiver side active electrode is rectangle that is longer in the first direction and shorter in the second direction. The power transmitter side active electrode and the power receiver side active electrode are formed so as that lengths of overlapping area in the first and second directions do not change in a placement receivable area on the power transmitter device, within which the power receiver device is allowed to be displaced. | 06-26-2014 |
20150222130 | WIRELESS POWER RECEIVER DEVICE, WIRELESS POWER TRANSMITTER DEVICE, AND WIRELSS POWER TRANSCEIVER DEVICE - A wireless power receiver device includes a sheet-like electrode sheet section and a power receiver section. The electrode sheet section includes a power receiver side active electrode and a power receiver side passive electrode that are substantially coplanar and formed into sheet-like shapes; lead lines that are coplanar with both the electrodes, extended from the respective electrodes, and formed into sheet-like shapes; and an insulation sheet that covers both the electrodes and both the lead lines from both sides thereof. The power receiver section includes a step-down unit that steps down an alternating-current voltage induced between end portions of the lead lines; a power receiver module that rectifies and smoothes the alternating-current voltage that is stepped down by the step-down unit; and a connector for outputting an output voltage of the power receiver module. | 08-06-2015 |
20160072311 | POWER TRANSMISSION DEVICE AND WIRELESS POWER TRANSMISSION SYSTEM - A power transmission device applies a alternating-current voltage to an active electrode OPPOSING an active electrode of a power reception device with a gap therebetween, and to a passive electrode OPPOSING a passive electrode of the power reception device with a gap therebetween and transmits power via electric field coupling. The power transmission device includes a controller that monitors a voltage applied to the passive electrode. If a change in the voltage per unit time exceeds a threshold, the controller determines that a metal foreign object has become interposed between the active electrodes and a user has touched the metal foreign object, and stops the transmission of power to the power reception device. Thus, a power transmission device and a wireless power transmission system are provided that are capable of preventing with certainty a malfunction due to a foreign object when a foreign object has become interposed between electrodes. | 03-10-2016 |
20160079772 | POWER TRANSMISSION DEVICE AND WIRELESS POWER TRANSMISSION SYSTEM - A power transmission device includes an AC power generator for generating an AC voltage and applying it to first and second power transmission electrodes. A controller controls the AC voltage applied to the first and second power transmission electrodes. To this end, the controller monitors the voltage on the first electrode and determines how that voltage changes at the beginning and end of each of a plurality of predetermined time intervals, monitors the voltage on the second electrode and determines how that voltage changes at the beginning and end of each of the plurality of predetermined time intervals, and determines when to cut off the application of the AC voltage to the first and second power transmission electrodes as a function of the manner in which the voltage on those electrodes changes at the beginning and end of at least one of the predetermined time intervals. | 03-17-2016 |