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

Naraji Sakamoto

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Acoustic diaphragm for speakers and method of producing the same

Acoustics – Diaphragm – Critically defined material or coating
Patent

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Circuit and method for compensating low frequency band for use i

Electrical audio signal processing systems and devices – Loudspeaker feedback
Patent

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Digital audio tone evaluating system

Data processing: generic control systems or specific application – Specific application – apparatus or process – Digital audio data processing system
Reexamination Certificate

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Multi-stylus printing head

Recorders – Markers and/or driving means therefor – Stylus feature
Patent

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Profile ID: LFUS-PAI-P-1369098

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