Inventor
URUI KIYOSHI
8 patents
⚠️ This page may combine multiple inventors who share the name “URUI KIYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOKYO SHIBAURA ELECTRIC CO
5 patentsUS4330886AMay 18, 1982
Automatic telephone exchange system for both speech signals and data transfer
TOKYO SHIBAURA ELECTRIC CO21 citations81
US4276639AJun 30, 1981
Telephone exchange with time shared speech paths and selectively attenuated speech signals
TOKYO SHIBAURA ELECTRIC CO8 citations71
US4046966ASep 6, 1977
Conference trunk circuit for an exchange
TOKYO SHIBAURA ELECTRIC CO5 citations61
US4297532AOct 27, 1981
Interfacing circuit status detection arrangement in a telephone exchange
TOKYO SHIBAURA ELECTRIC CO2 citations57
US4215251AJul 29, 1980
Switching apparatus selectively utilizing a regenerative repeater
TOKYO SHIBAURA ELECTRIC CO1 citations51
TOSHIBA KK
3 patentsUS4794639ADec 27, 1988
Method and apparatus for automatically transmitting a message to a telephone terminal
TOSHIBA KK26 citations92
US4635253AJan 6, 1987
Exchange system including plural terminals for voice and data transmission
TOSHIBA KK54 citations92
US4631686ADec 23, 1986
Semiconductor integrated circuit device
TOSHIBA KK78 citations92