4. Acoustics
  5. Diaphragm
  6. Critically defined material or coating

Shiro Iwakura

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Electroacoustic converter having a recessed step on the center p

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

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Loudspeaker

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

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Method for forming a hard carbon thin film on article and applic

Stock material or miscellaneous articles – Self-sustaining carbon mass or layer with impregnant or...
Patent

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Method for forming a hard carbon thin film on article and applic

Chemistry: electrical and wave energy – Processes and products – Vacuum arc discharge coating
Patent

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Nondirectional acoustic generator and speaker system

Electrical audio signal processing systems and devices – Having non-electrical feature – Loudspeakers driven in given phase relationship
Patent

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Profile ID: LFUS-PAI-P-253571

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