Patents/Inventors

Kohei Oto

OsakaJP3 patents

4 Patents

US124564492025
Active Noise Control System
THE SCHOOL CORPORATION KANSAI UNIVERSITY
0 cites
US121209602024
Piezoelectric Speaker
NITTO DENKO CORPORATION
0 cites
US120717612024
Sound Reducing System
NITTO DENKO CORPORATION
0 cites
US119500512024
Piezoelectric Speaker
NITTO DENKO CORPORATION
0 cites