Inventor · disambiguated record
Masami Doukai
Also filed as: DOUKAI MASAMI
6 granted patents·2 pending applications·71 citations·filing 2002–2006
83Inventor score
Top patents by PatentIndex Score
8 records- 0185US7633889B2Carrier network of virtual network system and communication node of carrier networkFUJITSU LTD·Filed 2005·Granted Dec 15, 2009·19 cites·12 claims
- 0276US7957267B2Fault detection deviceFUJITSU LTD·Filed 2005·Granted Jun 7, 2011·8 cites·9 claims
- 0376US7590048B2Restoration and protection method and an apparatus thereofFUJITSU LTD·Filed 2003·Granted Sep 15, 2009·26 cites·21 claims
- 0464US8199639B2Path protection method and layer-2 switchDOUKAI MASAMI·Filed 2006·Granted Jun 12, 2012·5 cites·14 claims
- 0564US7120357B2WDM device, client device, network, system and method for allocating wavelength of WDM to a client signalFUJITSU LTD·Filed 2002·Granted Oct 10, 2006·7 cites·16 claims
- 0657US7860031B2Apparatus and method for processing control packet in spanning tree protocolFUJITSU LTD·Filed 2004·Granted Dec 28, 2010·6 cites·12 claims
- 0739US2006198315A1Communication apparatusFUJITSU LTD·Filed 2005·Application pending·0 cites
- 0839US2006203735A1Bridge apparatus and control packet processing apparatus in a spanning tree protocol networkFUJITSU LTD·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →