Inventor
KUWAHATA TOSHIKATSU
JP4 patents
Patents
4 patentsUS4559584ADec 17, 1985
Combination lighting device and loudspeaker
VICTOR COMPANY OF JAPAN30 citations85
US7467686B2Dec 23, 2008
Speaker diaphragms, manufacturing methods of the same, and dynamic speakers
VICTOR COMPANY OF JAPAN5 citations71
US7677355B2Mar 16, 2010
Speaker diaphragms, manufacturing methods of the same, and dynamic speakers
VICTOR COMPANY OF JAPAN2 citations60
US4471084ASep 11, 1984
Diaphragm for loudspeakers
VICTOR COMPANY OF JAPAN2 citations56