About YOSHIDA MAKOTO
About OGA JURO
About OGA JURO
About MIX音研
About NEGISHI HIROKAZU
About MIX音研
About MAEDA KAZUAKI
About TOA
About OISHI KUNIO
About 日本音響学会研究発表会講演論文集(CD-ROM)
About loudspeaker
About ultrasonic motor
About microcomputer
About digital control
About speedup
About piezoelectric device
About phase shifter
About multiplier
About AD conversion
About driving circuit
About Audio equipment
About スピーカ
About 超音波モータ
About マイコン
About ディジタル制御
About 高速化