Inventor · disambiguated record
Izumi Yokota
Also filed as: YOKOTA IZUMI
7 granted patents·1 pending application·181 citations·filing 1990–2010
85Inventor score
Files withFUJITSU LTD8
Top patents by PatentIndex Score
8 records- 0192US5074631AOptical modulatorFUJITSU LTD·Filed 1990·Granted Dec 24, 1991·130 cites·23 claims
- 0276US6424459B1Gain-flattening of an optical amplifier with split-band architectureFUJITSU LTD·Filed 2000·Granted Jul 23, 2002·19 cites·35 claims
- 0370US7657176B2Method, apparatus, and system for evaluating faulty point in multi-stage optical amplifying and repeating transmission lineFUJITSU LTD·Filed 2005·Granted Feb 2, 2010·5 cites·5 claims
- 0466US6980745B2Optical transmission systemFUJITSU LTD·Filed 2001·Granted Dec 27, 2005·10 cites·6 claims
- 0562US8351790B2Optical OADM transmission system with loopbackFUJITSU LTD·Filed 2010·Granted Jan 8, 2013·3 cites·7 claims
- 0649US7146071B2Optical transmission systemFUJITSU LTD·Filed 2004·Granted Dec 5, 2006·2 cites·3 claims
- 0746US5875045AWavelength-multiplexing optical communication method employing RZ signals, wavelength-multiplexing optical sending apparatus employing RZ signals, and wavelength-multiplexing optical communication system employing RZ signalsFUJITSU LTD·Filed 1996·Granted Feb 23, 1999·12 cites·19 claims
- 0835US2010239260A1Optical transmission apparatus, optical communication method, and optical communication systemFUJITSU LTD·Filed 2010·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Izumi Yokota 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 →