Inventor
OZAWA AKIO
JP25 patents
⚠️ This page may combine multiple inventors who share the name “OZAWA AKIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PIONEER ELECTRONIC CORP
9 patentsUS5825248AOct 20, 1998
Low power consuming balanced transformer less amplifier device
PIONEER ELECTRONIC CORP37 citations92
US4540951ASep 10, 1985
Amplifier circuit
PIONEER ELECTRONIC CORP16 citations80
US4180750ADec 25, 1979
Transistor switching circuit with shortened response time
PIONEER ELECTRONIC CORP8 citations74
US4092693AMay 30, 1978
Temperature sensing protection circuit for ic power chip having thermal hysteresis characteristic
PIONEER ELECTRONIC CORP17 citations74
US4433305AFeb 21, 1984
Amplifier circuit
PIONEER ELECTRONIC CORP9 citations71
US4127743ANov 28, 1978
Muting circuit for loudspeaker
PIONEER ELECTRONIC CORP13 citations66
US5886506AMar 23, 1999
Power supply circuit
PIONEER ELECTRONIC CORP6 citations63
US4198578AApr 15, 1980
Transistor switching circuits with shortened response times
PIONEER ELECTRONIC CORP4 citations63
US4356455AOct 26, 1982
Amplifier
PIONEER ELECTRONIC CORP1 citations50
PIONEER CORP
7 patentsUS7092533B1Aug 15, 2006
BTL amplifier apparatus
PIONEER CORP12 citations83
US7276968B2Oct 2, 2007
Class D amplifier
PIONEER CORP7 citations71
US7239046B2Jul 3, 2007
Electric power supply unit and electric power supply controlling method
PIONEER CORP3 citations60
US6201718B1Mar 13, 2001
Step-up power supply circuit and integrated circuit device
PIONEER CORP5 citations59
US6191962B1Feb 20, 2001
Step-up power supply circuit and semiconductor integrated circuit device
PIONEER CORP6 citations59
US6424210B1Jul 23, 2002
Isolator circuit
PIONEER CORP4 citations58
US6587566B2Jul 1, 2003
Sound field forming circuit and sound field forming apparatus
PIONEER CORP1 citations48