4. Electrical generator or motor structure
  5. Non-dynamoelectric
  6. Piezoelectric elements and devices

Tadao Sunahara

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Piezoelectric acoustic device

Electrical audio signal processing systems and devices – Circuitry combined with specific type microphone or loudspeaker – With piezoelectric microphone
Reexamination Certificate

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Piezoelectric acoustic device

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electrostrictive – magnetostrictive – or piezoelectric
Reexamination Certificate

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Piezoelectric substrate supporting structure for piezoelectric t

Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent

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Profile ID: LFUS-PAI-P-1827150

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