Inventor
SUEHIRO AKIO
JP6 patents
Patents
6 patentsUS4473904ASep 25, 1984
Speech information transmission method and system
HITACHI LTD69 citations95
US4340783AJul 20, 1982
Voice frequency response system
HITACHI LTD62 citations94
US4088838AMay 9, 1978
Voice response system
HITACHI LTD32 citations92
US4489433ADec 18, 1984
Speech information transmission method and system
HITACHI LTD17 citations81
US4056683ANov 1, 1977
Audio transmitting and receiving system
HITACHI LTD17 citations71
US4122307AOct 24, 1978
Telephone voice frequency response system for message recording
HITACHI LTD6 citations60