About 69 results
https://drivepatents.com/patents/985900 · 6 Mar 2013
A power reception coil (13) of a power reception apparatus (3) receives energy from a power transmission coil (12) of a power transmission apparatus (2) using magnetic field resonance. The energy of the power reception coil (13) is extracted by one of powe...
https://drivepatents.com/patents/994989 · 19 Dec 2012
In a resonant frequency control method in a magnetic field resonant coupling type power transmission system transmitting an electric power from a power transmitting coil to a power receiving coil using magnetic field resonance, a high-speed, accurate and r...
https://drivepatents.com/patents/995682 · 28 Nov 2012
An AC adapter includes a conversion part, an output terminal, and a voltage adjusting circuit. The conversion part converts alternating current input to an input terminal into a direct current. The output terminal supplies the direct current to an electron...
https://drivepatents.com/patents/996859 · 24 Oct 2012
To reduce the cost of a magnetic resonance power transmitter including a communication function. A magnetic resonance power transmitter (100) of a magnetic resonance wireless power transmission system (10) includes a resonance coil (110), an alternating cu...
https://drivepatents.com/patents/997211 · 17 Oct 2012
To improve the efficiency of electric power transmission in a magnetic resonance wireless electric power transmission system in which electric power transmission by magnetic resonance is performed from an electric power-transmitting apparatus to an electri...
https://drivepatents.com/patents/998903 · 29 Aug 2012
A condensation sensing device that detects a water droplet to sense the condensation, the condensation sensing device comprising: a surface having a recesses and protrusions; and a water droplet detector that detects a water droplet guided by any of the re...
https://drivepatents.com/patents/1001550 · 13 Jun 2012
A base station apparatus includes a relay unit that relays communication data transmitted and received between a user terminal wirelessly connected to the base station apparatus itself, and a server apparatus connected to the base station apparatus itself ...
https://drivepatents.com/patents/1002012 · 30 May 2012
A power transmission device (20) includes a power supply unit (200) configured to supply power by a resonance frequency for magnetic resonance; a power transmission resonance coil (300) capable of magnetic resonance with a power reception resonance coil in...
https://drivepatents.com/patents/1005394 · 8 Feb 2012
Provided is a wireless power transmitting device (1) of a wireless power supply system, that includes a wireless power transmitting unit (10) that includes a variable resonant circuit (100) having a variable-controllable resonant frequency characteristic a...
https://drivepatents.com/patents/1005915 · 25 Jan 2012
A wireless power supply system has a power sending resonance coil (1), a power receiving resonance coil (2), and a relay resonance coil (3). The power sending resonance coil (1) has a predetermined resonance frequency characteristic, and transmits power wi...