Electrostatic ultrasonic transducers4/30/2023 ![]() ![]() Google Patents US7769193B2 - Electrostatic ultrasonic transducer, ultrasonic speaker, audio signal reproduction method, electrode manufacturing method for use in ultrasonic transducer, ultrasonic transducer manufacturing method, superdirective acoustic system, and display device US7769193B2 - Electrostatic ultrasonic transducer, ultrasonic speaker, audio signal reproduction method, electrode manufacturing method for use in ultrasonic transducer, ultrasonic transducer manufacturing method, superdirective acoustic system, and display device ![]()
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