Inventor
TOYOSHIMA MASAKATSU
16 patents
⚠️ This page may combine multiple inventors who share the name “TOYOSHIMA MASAKATSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
15 patentsUS4866515ASep 12, 1989
Passenger service and entertainment system for supplying frequency-multiplexed video, audio, and television game software signals to passenger seat terminals
SONY CORP386 citations99
US7233804B2Jun 19, 2007
Radio communication system, and apparatus, method, and computer program for said radio communication system
SONY CORP44 citations96
US4958381ASep 18, 1990
Two way communication system
SONY CORP88 citations96
US6980819B2Dec 27, 2005
Radio communication system, and apparatus, method, and computer program for said radio communication system
SONY CORP22 citations92
US6779195B2Aug 17, 2004
Signal processing apparatus and signal receiving apparatus
SONY CORP32 citations92
US4635274AJan 6, 1987
Bidirectional digital signal communication system
SONY CORP31 citations92
US4684981AAug 4, 1987
Digital terminal address transmitting for CATV
SONY CORP36 citations90
US7779442B1Aug 17, 2010
Information distribution system
SONY CORP8 citations82
US4683586AJul 28, 1987
Scrambling system for an audio frequency signal
SONY CORP24 citations82
US3939424AFeb 17, 1976
Radio receiver with a phase locked loop for a demodulator
SONY CORP12 citations74
US3939425AFeb 17, 1976
Noise-squelching circuit using a phase-locked loop
SONY CORP16 citations73
US4600941AJul 15, 1986
Scrambling system for audio frequency signals
SONY CORP10 citations72
US4298989ANov 3, 1981
Tuning apparatus
SONY CORP18 citations72
US6587503B1Jul 1, 2003
Information processing apparatus and method
SONY CORP6 citations61
US3971986AJul 27, 1976
Remote control system for radio receiver
SONY CORP3 citations61