Inventor
ASAHINA MASATO
JP13 patents
Patents
13 patentsUSD487455SMar 9, 2004
Telephone receiver with a speaker
CITIZEN ELECTRONICS17 citations91
US6711274B2Mar 23, 2004
Compound speaker for a portable communication device
CITIZEN ELECTRONICS15 citations83
US6023518AFeb 8, 2000
Electromagnetic sound generator
CITIZEN ELECTRONICS16 citations83
US6876743B2Apr 5, 2005
One-piece speaker assembly
CITIZEN ELECTRONICS14 citations76
USD487083SFeb 24, 2004
Telephone receiver with a speaker
CITIZEN ELECTRONICS11 citations72
US6476710B2Nov 5, 2002
Electromagnetic sound generator
CITIZEN ELECTRONICS8 citations72
US6433674B2Aug 13, 2002
Electromagnetic sound generator
CITIZEN ELECTRONICS2 citations62
USD440174SApr 10, 2001
Electromagnetic sound generator
CITIZEN ELECTRONICS4 citations61
USD439185SMar 20, 2001
Electromagnetic sound generator
CITIZEN ELECTRONICS2 citations61
USD438136SFeb 27, 2001
Audible signal for alarm
CITIZEN ELECTRONICS2 citations61
USD419904SFeb 1, 2000
Signal unit for an audible alarm
CITIZEN ELECTRONICS2 citations61
US6233346B1May 15, 2001
Surface-mounted electromagnetic sound generator
CITIZEN ELECTRONICS1 citations51
US9220142B2Dec 22, 2015
Light-emitting device
CITIZEN ELECTRONICS0 citations40