Inventor
TOJO TOSHIRO
JP15 patents
⚠️ This page may combine multiple inventors who share the name “TOJO TOSHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
9 patentsUS4995111AFeb 19, 1991
Ring trip circuit for subscriber telephone
FUJITSU LTD81 citations95
US4827505AMay 2, 1989
Subscriber line interface circuit
FUJITSU LTD26 citations91
US4827503AMay 2, 1989
Integrated ringing circuit and a ring trip circuit for the same
FUJITSU LTD21 citations81
US5113426AMay 12, 1992
Ground fault detector
FUJITSU LTD8 citations73
US4935960AJun 19, 1990
Battery feed circuit
FUJITSU LTD16 citations73
US4862309AAug 29, 1989
Protection circuit for battery feed circuit
FUJITSU LTD10 citations73
US4912429AMar 27, 1990
Operational amplifier
FUJITSU LTD5 citations62
US4588860AMay 13, 1986
Battery feed circuit for telephone subscriber line
FUJITSU LTD5 citations57
US5128992AJul 7, 1992
Hybrid circuit
FUJITSU LTD1 citations52