Inventor

YAMAMURO ISAO

JP3 patents

Patents

3 patents

US4477699AOct 16, 1984

Mechanical two-way loudspeaker

PIONEER ELECTRONIC CORP63 citations93

US4472834ASep 18, 1984

Loudspeaker system

PIONEER ELECTRONIC CORP72 citations93

US4351412ASep 28, 1982

Diaphragm for acoustic instruments and method of manufacturing the same

PIONEER ELECTRONIC CORP25 citations80