4. Electrical audio signal processing systems and devices
  5. Electro-acoustic audio transducer
  6. Housed microphone

Tatsuhiro Sawada

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Capacitor sensor

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Microphone capsule only
Reexamination Certificate

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Electret capacitor type composite sensor

Active solid-state devices (e.g. – transistors – solid-state diode – Responsive to non-electrical signal
Reexamination Certificate

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Microphone apparatus

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Housed microphone
Reexamination Certificate

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Semiconductor package

Active solid-state devices (e.g. – transistors – solid-state diode – Housing or package
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2249155

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