4. Acoustics
  5. Plural diaphragm sound sources
  6. Plural chambers

Takashi Oyaba

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Piezoelectric diaphragm electro-acoustic transducer

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

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Piezoelectric electro-acoustic diaphragm transducer with composi

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

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Ribbon type speaker and method of assembling magnetic circuit th

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Speaker system having directivity

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer
Patent

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Speaker system having directivity

Acoustics – Plural diaphragm sound sources – Plural chambers
Patent

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Profile ID: LFUS-PAI-P-38476

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