Assignee

WATANABE AYASE

JP·1 granted patent·1 citations·filing 2011–2011

Technology mixA61H1 B60Q1 G08B1 G08G1 H04R1

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0145US8693285B2Sound generation system, ultrasonic wave emitting device, and ultrasonic wave emitting methodWATANABE AYASE·Filed 2011·Granted Apr 8, 2014·1 cites·6 claims

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