S
Satoshi Shimokawa
Researcher at Fujitsu
Publications - 70
Citations - 870
Satoshi Shimokawa is an academic researcher from Fujitsu. The author has contributed to research in topics: Electromagnetic coil & Power transmission. The author has an hindex of 13, co-authored 70 publications receiving 846 citations.
Papers
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Journal ArticleDOI
Thermally Assisted Magnetic Recording Using an Optical Head with NA = 0.85
Patent
Optical disc drive
TL;DR: An optical disc drive includes a light source and an objective optical system for condensing a light from the light source onto a recording surface of an optical disc as mentioned in this paper, which is movable radially of the optical disc.
Patent
Rechargeable battery, charging system, and electronic device
Hiroyasu Kawano,Akiyoshi Uchida,Satoshi Shimokawa,Kiyoto Matsui,Kazuyuki Ozaki,Masakazu Taguchi +5 more
TL;DR: A rechargeable battery includes: a battery body including a cylindrical outer peripheral side surface; and a power receiving coil wound in at most a single layer around the outer peripheral surface, and electrically connected to the battery body as discussed by the authors.
Proceedings ArticleDOI
Transfer efficiency control using switching devices in resonant magnetic coupling
TL;DR: A new efficiency control technique using nonlinear devices that can be achieved without any communication between the transceiver and the receiver is proposed.
Patent
Hologram recording apparatus and hologram recording/reproducing method
Kazushi Uno,Koichi Tezuka,Hiroyasu Yoshikawa,Yasumasa Iwamura,Yuzuru Yamakage,Satoshi Shimokawa +5 more
TL;DR: In this article, a hologram recorder includes a recording-purpose reference beam reflector (10 ) for reflecting the reference beam (R) to the illumination site (p), and a pivot mechanism for pivoting the reflector about an axis (x) to vary the incident angle (θr) of the reflected reference beam to the recording medium (B).