4. Acoustics
  5. Diaphragm and enclosure
  6. Reflex baffle

Masashi Maruyama

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Bass-reflex type speaker system

Acoustics – Diaphragm and enclosure – Reflex baffle
Patent

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High frequency power amplification electric part and...

Amplifiers – With semiconductor amplifying device – Including gain control means
Reexamination Certificate

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High frequency power amplifier and wireless communication...

Amplifiers – With plural amplifier channels – Amplifying different frequencies in different channels
Reexamination Certificate

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High frequency power amplifier and wireless communication...

Amplifiers – With semiconductor amplifying device – Including particular power supply circuitry
Reexamination Certificate

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High frequency power amplifier and wireless communication...

Amplifiers – Involving structure other than that of transformers per se – With printed circuits
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1790907

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