Inventor
IWAKURA SHIRO
JP8 patents
Patents
8 patentsUS4725345AFeb 16, 1988
Method for forming a hard carbon thin film on article and applications thereof
KENWOOD CORP197 citations97
US5253301AOct 12, 1993
Nondirectional acoustic generator and speaker system
KENWOOD CORP82 citations96
US4772513ASep 20, 1988
Method for forming a hard carbon thin film on article and applications thereof
KENWOOD CORP53 citations95
US5091958AFeb 25, 1992
Wiring structure of loudspeaker
KENWOOD CORP34 citations92
US5031720AJul 16, 1991
Speaker diaphragm
KENWOOD CORP38 citations90
US4752963AJun 21, 1988
Electroacoustic converter having a recessed step on the center pole
KENWOOD CORP37 citations90
US5594805AJan 14, 1997
Loudspeaker
KENWOOD CORP52 citations89
US4146111AMar 27, 1979
Speaker system
KENWOOD CORP32 citations87