Patents/Inventors

Koichi Irii

TokyoJP5 patents

4 Patents

US125931752026
Electro-acoustic Transducer
Audio-technica Corporation
0 cites
US125380692026
Earphone
Audio-technica Corporation
0 cites
US120961822024
Capacitive-type Electro-acoustic Transducer
Audio-technica Corporation
0 cites
US115891612023
Electrostatic Electroacoustic Transducer Device, Signal Processing Circuit for Electrostatic Electroacoustic Transducer, Signal Processing Method, and Signal Processing
AUDIO-TECHNICA CORPORATION
0 cites