Inventor · disambiguated record
Hisako Watanabe
Also filed as: WATANABE HISAKO
6 granted patents·254 citations·filing 1988–1997
87Inventor score
Files withFUJITSU LTD6
Top patents by PatentIndex Score
6 records- 0180US5563898ASemiconductor laser driveFUJITSU LTD·Filed 1995·Granted Oct 8, 1996·50 cites·16 claims
- 0274US5257311ASystem for monitoring ATM cross-connecting apparatus by inside-apparatus monitoring cellFUJITSU LTD·Filed 1992·Granted Oct 26, 1993·75 cites·11 claims
- 0372US5001726ACircuit for generating discrimination voltage levelFUJITSU LTD·Filed 1989·Granted Mar 19, 1991·30 cites·9 claims
- 0469US5265088ACross-connection apparatus for B-ISDNFUJITSU LTD·Filed 1992·Granted Nov 23, 1993·60 cites·8 claims
- 0566US6031855ALight emitting element driving circuit and light emitting device having the sameFUJITSU LTD·Filed 1997·Granted Feb 29, 2000·28 cites·22 claims
- 0655US4935701APhase shift circuitFUJITSU LTD·Filed 1988·Granted Jun 19, 1990·11 cites·18 claims
Join the waitlist — get patent alerts
Get an alert when Hisako Watanabe files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →