Inventor · disambiguated record
Hisako Koyanagi
Also filed as: KOYANAGI HISAKO
3 granted patents·129 citations·filing 1998–2001
76Inventor score
Files withFUJITSU LTD3
Top patents by PatentIndex Score
3 records- 0186US7187658B2Data transmission apparatus selecting efficient network or service classFUJITSU LTD·Filed 2001·Granted Mar 6, 2007·55 cites·13 claims
- 0277US6242870B1Light emitting device driving circuitFUJITSU LTD·Filed 1998·Granted Jun 5, 2001·59 cites·28 claims
- 0345US6078150ALight-emitting element driving circuit and device using the sameFUJITSU LTD·Filed 1998·Granted Jun 20, 2000·15 cites·13 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →