Inventor
ANDO SHIZUO
18 patents
⚠️ This page may combine multiple inventors who share the name “ANDO SHIZUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PIONEER ELECTRONIC CORP
17 patentsUS4377829AMar 22, 1983
Player for magnetic tape cartridge recordings
PIONEER ELECTRONIC CORP14 citations71
US4900951AFeb 13, 1990
Latch-up restoration circuit
PIONEER ELECTRONIC CORP9 citations70
US4027102AMay 31, 1977
Voice versus pulsed tone signal discrimination circuit
PIONEER ELECTRONIC CORP17 citations70
US4134032AJan 9, 1979
Audio signal discriminator circuit
PIONEER ELECTRONIC CORP3 citations62
US4117272ASep 26, 1978
Start circuit for telephone answering device
PIONEER ELECTRONIC CORP4 citations62
US4031323AJun 21, 1977
Remote controllable telephone answering device having a dual playback capability
PIONEER ELECTRONIC CORP5 citations62
US3946160AMar 23, 1976
Telephone answering device with plural message recording tapes
PIONEER ELECTRONIC CORP3 citations62
US3943291AMar 9, 1976
Automatic telephone answering apparatus
PIONEER ELECTRONIC CORP4 citations62
US4379314AApr 5, 1983
Cassette tape player
PIONEER ELECTRONIC CORP5 citations61
US4344098AAug 10, 1982
Cassette tape player
PIONEER ELECTRONIC CORP3 citations61
US4337490AJun 29, 1982
Cassette tape player
PIONEER ELECTRONIC CORP2 citations61
US4369474AJan 18, 1983
Player for magnetic tape cartridge recordings
PIONEER ELECTRONIC CORP6 citations60
US4092496AMay 30, 1978
Variable impedance detecting circuit for a telephone line auxiliary device
PIONEER ELECTRONIC CORP1 citations52
US4536811AAug 20, 1985
Cassette tape player having supply and take-up motors positioned vertically above a cassette receiving mechanism
PIONEER ELECTRONIC CORP1 citations50
US4400744AAug 23, 1983
Cassette tape player
PIONEER ELECTRONIC CORP0 citations50
US4368494AJan 11, 1983
Player for magnetic tape cartridge recordings
PIONEER ELECTRONIC CORP1 citations50
US4428010AJan 24, 1984
Drive mode switching device for magnetic tape recorder/reproducer
PIONEER ELECTRONIC CORP0 citations40