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Akiyoshi Uchida
Researcher at Fujitsu
Publications - 106
Citations - 1411
Akiyoshi Uchida is an academic researcher from Fujitsu. The author has contributed to research in topics: Electromagnetic coil & Power transmission. The author has an hindex of 15, co-authored 105 publications receiving 1408 citations.
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Patent
Power transmission apparatus
TL;DR: A power transmission apparatus includes a cover part attached to one of a power transmitter and an electronic apparatus, the power transmitter including a primary-side coil connected to an alternating-current power supply, and a secondary-side resonant coil configured to receive power from the primary side coil by electromagnetic induction as discussed by the authors.
Patent
Resonance frequency control method, power transmission device, and power reception device for magnetic-resonant-coupling type power transmission system
TL;DR: In this article, the phase difference between the phase of the voltage of the AC power supply and the current flowing through the power-transmission resonance coil is controlled to become a target value.
Patent
Power transmitting device, power receiving device, and non-contact charging method
TL;DR: In this paper, variable information with which a resonance frequency of a resonance circuit of an equipment device having maximum charging power as the power transmitting frequency was transmitted to each equipment device was obtained.
Patent
Wireless power transmission system and wireless power transmission method
Akiyoshi Uchida,Kazuyuki Ozaki,Masakazu Taguchi,Satoshi Shimokawa,Hiroyasu Kawano,Kiyoto Matsui +5 more
TL;DR: A wireless power transfer system includes a plurality of power sources and at least one power receiver, in which power transfer from the power sources to the power receiver is performed in wireless by using magnetic field resonance or electric field resonance as mentioned in this paper.
Patent
Data reproducing apparatus
TL;DR: In this paper, the authors proposed a method to cancel crosstalk cancellation by considering both the magnitude and the phase difference of a signal from a recording track adjoining a target track, in comparison with magnitude and phase of a desired signal from the target track.