Inventor · disambiguated record
Motohiro Kokumai
Also filed as: KOKUMAI MOTOHIRO
5 granted patents·128 citations·filing 1987–1992
83Inventor score
Files withHITACHI LTD5
Top patents by PatentIndex Score
5 records- 0181US5018134AMethod for cancelling echo in a transmitter and an apparatus thereforHITACHI LTD·Filed 1989·Granted May 21, 1991·53 cites·14 claims
- 0260US4896318AMethod for cancelling echo in a transmitter and an apparatus thereforHITACHI LTD·Filed 1988·Granted Jan 23, 1990·21 cites·25 claims
- 0353US4868874AEcho cancellerHITACHI LTD·Filed 1987·Granted Sep 19, 1989·22 cites·6 claims
- 0447US5311503ATerminal apparatus for full-duplex data transmission having an echo cancellerHITACHI LTD·Filed 1992·Granted May 10, 1994·17 cites·12 claims
- 0540US5097488ATransmission apparatus and methodHITACHI LTD·Filed 1990·Granted Mar 17, 1992·15 cites·16 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →