Inventor · disambiguated record
Atsuhiko Utsumi
Also filed as: UTSUMI ATSUHIKO
4 granted patents·110 citations·filing 1990–1997
79Inventor score
Files withFUJITSU LTD4
Top patents by PatentIndex Score
4 records- 0174US6031644AMethod, device, and system for controlling wavelength of optical signalFUJITSU LTD·Filed 1997·Granted Feb 29, 2000·57 cites·21 claims
- 0253US5311347AOptical communication system with automatic gain controlFUJITSU LTD·Filed 1992·Granted May 10, 1994·23 cites·6 claims
- 0347US5577096ATransmission system having stand-by line switching facilityFUJITSU LTD·Filed 1993·Granted Nov 19, 1996·16 cites·10 claims
- 0439US5123020APhase synchronization pull-in system in bit error detecting apparatusFUJITSU LTD·Filed 1990·Granted Jun 16, 1992·14 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →