P

Inventor

NUMATA TATSUO

28 patents
⚠️ This page may combine multiple inventors who share the name “NUMATA TATSUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PIONEER ELECTRONIC CORP

20 patents
US4853609AAug 1, 1989

Distortion-free, opposite-phase current source

PIONEER ELECTRONIC CORP9 citations73
US4502148AFeb 26, 1985

FM Stereo demodulator for demodulating stereo signals directly from an FM intermediate frequency signal

PIONEER ELECTRONIC CORP9 citations73
US4109206AAug 22, 1978

Signal strength meter drive circuit

PIONEER ELECTRONIC CORP7 citations73
US4555671ANov 26, 1985

Circuit for driving a signal meter for a receiver

PIONEER ELECTRONIC CORP2 citations62
US4539697ASep 3, 1985

FM Stereo demodulating circuit

PIONEER ELECTRONIC CORP6 citations62
US4523329AJun 11, 1985

FM receiver

PIONEER ELECTRONIC CORP2 citations62
US4497063AJan 29, 1985

FM stereo demodulator

PIONEER ELECTRONIC CORP4 citations62
US4495469AJan 22, 1985

Differential amplifier output leading circuit, and intermediate frequency amplifier using same

PIONEER ELECTRONIC CORP2 citations62
US4489430ADec 18, 1984

FM Stereo demodulation circuit

PIONEER ELECTRONIC CORP3 citations62
US4409436AOct 11, 1983

Stereo pilot signal eliminating circuit for AM stereophonic receiver

PIONEER ELECTRONIC CORP3 citations62
US4399324AAug 16, 1983

Multiplex demodulation circuit

PIONEER ELECTRONIC CORP6 citations62
US4383136AMay 10, 1983

Muting circuit for AM stereophonic receiver

PIONEER ELECTRONIC CORP5 citations62
US4315221AFeb 9, 1982

Switching circuit

PIONEER ELECTRONIC CORP5 citations62
US4283793AAug 11, 1981

Muting signal generation circuit for an FM receiver

PIONEER ELECTRONIC CORP4 citations62
US4280101AJul 21, 1981

Stereophonic signal demodulation circuit

PIONEER ELECTRONIC CORP2 citations62
US4274057AJun 16, 1981

MPX Stereophonic demodulation

PIONEER ELECTRONIC CORP3 citations62
US4244055AJan 6, 1981

Tuner with phase locked loop synthesizer

PIONEER ELECTRONIC CORP3 citations62
US4146747AMar 27, 1979

Fm stereo demodulating device

PIONEER ELECTRONIC CORP3 citations60
US4468537AAug 28, 1984

Sound system having suppression of AM stereophonic receiving circuit-induced noise

PIONEER ELECTRONIC CORP0 citations52
US4228542AOct 14, 1980

Digital tuning FM stereophonic receiver including phase locked loop synthesizer

PIONEER ELECTRONIC CORP1 citations52

NISSAN CHEMICAL IND LTD

7 patents

NISSAN CHEMICAL IND INC

1 patent