About 24 results
https://drivepatents.com/patents/943717 · 4 May 2016
In order to suppress a noise component such as a harmonic component of the fundamental component of an electromagnetic wave produced by an electric current flowing through a main coil that functions as an antenna while minimizing the attenuation of the fun...
https://drivepatents.com/patents/953872 · 3 Feb 2016
Provided is an electric vehicle that can offer the same pedal feeling as a vehicle in which a pedal rotation mechanism and a drive wheel are mechanically connected. [0002] A vehicle includes crankshafts 250 to which a rotation torque is input through pedal...
https://drivepatents.com/patents/957784 · 9 Sep 2015
Provided is a power transmission system that can prevent a plunge in power transmission efficiency even when there is a positional shift of a power reception antenna with respect to a power transmission antenna. A power transmission system 100 of the prese...
https://drivepatents.com/patents/958616 · 5 Aug 2015
Provided is an electric power transmission system that can efficiently transmit electric power when a battery 204 is charged in a power receiving-side system. [0002] An electric power transmission system 100 of the present invention is characterized by at ...
https://drivepatents.com/patents/959251 · 8 Jul 2015
Provided is an electric power transmission system that can efficiently transmit electric power when a battery 204 is charged in a power receiving-side system. An electric power transmission system 100 of the present invention is characterized by at least i...
https://drivepatents.com/patents/951649 · 25 Mar 2015
Provided is an antenna coil capable of forming a magnetic field in a desired direction in an efficient manner, while suppressing leakage of magnetic flux into a space other than the space in which the magnetic field is formed. The antenna coil includes a m...
https://drivepatents.com/patents/952498 · 4 Feb 2015
What is provided is an electric power transmission system that can properly recognize, from a coupling coefficient, a positional change between a power transmission antenna and a power receiving antenna and can efficiently transmit electric power. An elect...
https://drivepatents.com/patents/964076 · 14 Jan 2015
In order to provide an electric power transmission system capable of curbing a reduction in power transmission efficiency, an electric power transmission system of the present invention, which transmits electric energy via an electromagnetic field from a p...
https://drivepatents.com/patents/964243 · 7 Jan 2015
In order to provide an electric power transmission system capable of building the system at low cost without the need for complex circuits that determine an optimum frequency, an electric power transmission system of the present invention, which transmits ...
https://drivepatents.com/patents/975261 · 7 May 2014
A power transmission system according to the present invention can quickly select an optimum frequency for power transmission and curtail the time to be spent for power transmission. The power transmission system comprises an inverter section (130) for out...