4. Electrical audio signal processing systems and devices
  5. Monitoring/measuring of audio devices
  6. Testing of hearing aids

Kaoru Okabe

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Earphone characteristic measuring device

Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Testing of hearing aids
Patent

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Wireless communication device

Telecommunications – Transmitter and receiver at separate stations – Distortion – noise – or other interference prevention,...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-286295

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