4. Electrical generator or motor structure
  5. Educational or construction units or kits

Akihiko Kodama

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Curved polymeric piezoelectric electro-acoustic transducer

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

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Loudspeaker driver unit

Acoustics – Diaphragm – With horn
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Piezoelectric electro-acoustic transducer

Electrical generator or motor structure – Educational or construction units or kits
Patent

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Profile ID: LFUS-PAI-P-1464754

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