Inventor · disambiguated record
Yoshinobu Matsukawa
Also filed as: MATSUKAWA YOSHINOBU
12 granted patents·4 pending applications·198 citations·filing 1996–2022
89Inventor score
Top patents by PatentIndex Score
16 records- 0187US9900089B2Optical transmission device and method for checking optical connection in optical transmission deviceFUJITSU LTD·Filed 2017·Granted Feb 20, 2018·6 cites·9 claims
- 0283US9520959B2Optical drop apparatus, optical add apparatus, and optical add/drop apparatusFUJITSU LTD·Filed 2013·Granted Dec 13, 2016·6 cites·15 claims
- 0379US6400729B1Protocol conversion system for data communication between different types of open networksFUJITSU LTD·Filed 1998·Granted Jun 4, 2002·130 cites·14 claims
- 0473US5805601ASystem for controlling signal transfer between a plurality of devicesFUJITSU LTD·Filed 1996·Granted Sep 8, 1998·44 cites·6 claims
- 0571US9300426B2Transmission apparatus, transmission system, and method of controlling average optical input powerFUJITSU LTD·Filed 2014·Granted Mar 29, 2016·2 cites·20 claims
- 0669US7991286B2Optical transmission apparatusFUJITSU LTD·Filed 2008·Granted Aug 2, 2011·4 cites·5 claims
- 0763US8699506B2Optical transmission apparatus and optical transmission methodTANIGUCHI MIWA·Filed 2012·Granted Apr 15, 2014·2 cites·9 claims
- 0859US8625984B2Transmission device, control device, and method of detecting erroneous connection of signal lineMATSUKAWA YOSHINOBU·Filed 2011·Granted Jan 7, 2014·2 cites·7 claims
- 0959US8005357B2Optical transmission apparatusFUJITSU LTD·Filed 2008·Granted Aug 23, 2011·2 cites·4 claims
- 1049US11838103B2Wavelength conversion device and transmission systemFUJITSU LTD·Filed 2022·Granted Dec 5, 2023·0 cites·14 claims
- 1146US9332326B2Optical transmission device and monitoring method of optical signalFUJITSU LTD·Filed 2014·Granted May 3, 2016·0 cites·5 claims
- 1243US2015280854A1Optical transmission apparatus, optical transmission system, and optcial transmission methodFUJITSU LTD·Filed 2014·Application pending·0 cites
- 1338US2013039644A1Optical network apparatusFUJITSU LTD·Filed 2012·Application pending·0 cites
- 1432US2016315701A1Optical transmission device, method for verifying connection, and wavelength selective switch cardFUJITSU LTD·Filed 2016·Application pending·0 cites
- 1531US2015333835A1Optical transmitter, optical receiver, and optical transmission methodFUJITSU LTD·Filed 2015·Application pending·0 cites
- 1627US8374500B2SONET/SDH transmission apparatusFUJITSU LTD·Filed 2010·Granted Feb 12, 2013·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →