Inventor · disambiguated record
Tatsuo Kawatobi
Also filed as: KAWATOBI TATSUO
4 granted patents·153 citations·filing 1988–1990
81Inventor score
Files withHITACHI LTD4
Top patents by PatentIndex Score
4 records- 0172US5051992AData link control method and system for integrated services digital networkHITACHI LTD·Filed 1989·Granted Sep 24, 1991·41 cites·6 claims
- 0270US4875208ATransmission method for control information in communication networkHITACHI LTD·Filed 1988·Granted Oct 17, 1989·46 cites·7 claims
- 0369US4879742ACharging system in data communication networkHITACHI LTD·Filed 1988·Granted Nov 7, 1989·41 cites·3 claims
- 0450US5398329ASystem for switching between first and second control unit and broadcasting switchover to connecting hosts indicating availability of first and second communication linksHITACHI LTD·Filed 1990·Granted Mar 14, 1995·25 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →