4. Communications: electrical
  5. Audible indication
  6. Percussion-type sound producer

Sumio Takeuchi

Inventor

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Analog-to-digital conversion method and apparatus

Communications: electrical – Audible indication – Percussion-type sound producer
Patent

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Light amount adjusting device and projector using the same

Optics: image projectors – Light shield – mask – hood – or diaphragm
Reexamination Certificate

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Profile ID: LFUS-PAI-P-351486

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