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Featured researches published by Toshihiro Akiyama.


international telecommunications energy conference | 2015

Control method of wireless power transfer system for allowing coil position deviation

Toshihiro Akiyama; Mamoru Ozaki; Toyohiko Tsujimoto; Mitsuru Tanabe; Hitoshi Kudo; Hideaki Abe; Akira Yabuta

The purpose of this paper is to propose a new control method of wireless power transfer system that can maintain stable power supply even when the positions of the primary and secondary coil or distance between the two coils largely change. The new method will be done by adjusting the switching frequency to a frequency that can obtain the desired output. We confirmed the effectiveness of new wireless power supply control method through experimental result which show that the maximum horizontal position deviation that can obtain a 20W output is 2.8 times longer.


Archive | 2007

Blood test device

Masaki Fujiwara; Yoshinori Amano; Takeshi Nishida; Toshihiro Akiyama; Masataka Nadaoka; Toshiki Matsumoto; Kenichi Hamanaka; Kiyohiro Horikawa; Koji Miyoshi


Archive | 2006

Blood test apparatus

Masaki Fujiwara; Toshihiro Akiyama; Yoshinori Amano


Archive | 2007

Blood inspection device

Toshiki Matsumoto; Masaki Fujiwara; Toshihiro Akiyama; Keisuke Matsumura


Archive | 2007

Blood test apparatus and method of controlling the same

Masaki Fujiwara; Yoshinori Amano; Kenichi Hamanaka; Motonori Uchiyama; Masataka Nadaoka; Toshihiro Akiyama; Koji Miyoshi


Ieej Transactions on Sensors and Micromachines | 2015

Simple Equivalent Circuit for a Wireless Power Transfer System Using a Repeating Coil and Effects Confirming the Simplification in the Output Voltage Estimation

Hideaki Abe; Toshihiro Akiyama; Mamoru Ozaki; Hiroshi Kohara


Archive | 2009

Blood test device and control method thereof

Masaki Fujiwara; Koji Miyoshi; Masataka Nadaoka; Motonori Uchiyama; Kenichi Hamanaka; Yoshinori Amano; Toshihiro Akiyama


Archive | 2013

Contactless power feeding device

Kiyoshi Ogasawara; 潔 小笠原; Hideaki Abe; 秀明 安倍; Toshihiro Akiyama; 稔博 秋山


Archive | 2013

Dispositif d'alimentation sans contact

Hideaki Abe; 秀明 安倍; Toshihiro Akiyama; 稔博 秋山; Hiroshi Kohara; 弘士 小原; Kiyoshi Ogasawara; 小笠原 潔; Mamoru Ozaki; 保 尾崎; Toyohiko Tsujimoto; 豊彦 辻本; Akira Yabuta; 薮田 明


Archive | 2012

CONTACTLESS POWER SUPPLY SYSTEM AND POWER RECEPTION DEVICE

Kaoru Furukawa; Tomohiro Ota; Kiyoshi Ogasawara; Toshihiro Akiyama

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