Inventor
NAKAMA YASUTOSHI
JP13 patents
Patents
13 patentsUS6873837B1Mar 29, 2005
Emergency reporting system and terminal apparatus therein
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD79 citations98
US5377276ADec 27, 1994
Noise controller
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD111 citations98
US6377165B1Apr 23, 2002
Mayday system equipment and mayday system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD67 citations96
US6310543B1Oct 30, 2001
Emergency call system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD58 citations96
US5742688AApr 21, 1998
Sound field controller and control method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD69 citations95
US4924962AMay 15, 1990
Sound reproducing apparatus for use in vehicle
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD64 citations94
US6337641B1Jan 8, 2002
Emergency reporting system and terminal apparatus therein
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD40 citations92
US5416846AMay 16, 1995
Noise control system and method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD48 citations92
US4790014ADec 6, 1988
Low-pitched sound creator
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD27 citations91
US5388160AFeb 7, 1995
Noise suppressor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD50 citations89
US6954135B1Oct 11, 2005
Emergency communication system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations84
US4584701AApr 22, 1986
Reverberator having tapped and recirculating delay lines
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74
US4722009AJan 26, 1988
Tone restoring apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations62