Mr. Ryo Hamamura Profile

Ryo Hamamura

at International Christian Univ

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Publications (2)

Proceedings Article | 17 November 2008 Paper

Light actuated piezoelectric speaker at resonant condition

Hideki Okamura, Taki Yamamoto, Ryo Hamamura

Proceedings Volume 7266, 72660C (2008) https://doi.org/10.1117/12.813681

KEYWORDS: Solar cells, Actuators, Modulation, Resistance, Light sources, Energy efficiency, Light, Energy conversion efficiency, Semiconductor lasers, Interfaces

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Proceedings Article | 10 October 2007 Paper

Light actuated speaker: high efficiency conversion from light energy to acoustic sound energy

Ryo Hamamura, Hideki Okamura

Proceedings Volume 6715, 671508 (2007) https://doi.org/10.1117/12.754333

KEYWORDS: Solar cells, Energy efficiency, Energy conversion efficiency, Visualization, Light sources, Acoustics, Power supplies, Actuators, Light emitting diodes, Resistance

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