Inventor · disambiguated record
Masazumi Isaka
Also filed as: ISAKA MASAZUMI
3 granted patents·95 citations·filing 1995–2000
73Inventor score
Files withOKI ELECTRIC IND CO LTD3
Top patents by PatentIndex Score
3 records- 0182US6654455B1IP conference telephone system compatible with IP-PBX systemsOKI ELECTRIC IND CO LTD·Filed 2000·Granted Nov 25, 2003·61 cites·6 claims
- 0247US5740373APacket switching system having communication control unit for sending acknowledgment to the source upon receiving the receive response data associated with the last cellOKI ELECTRIC IND CO LTD·Filed 1995·Granted Apr 14, 1998·30 cites·18 claims
- 0329US6658020B1Voice data exchange systemOKI ELECTRIC IND CO LTD·Filed 1999·Granted Dec 2, 2003·4 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →