Inventor · disambiguated record
Yuzuru Ishioka
Also filed as: ISHIOKA YUZURU
7 granted patents·125 citations·filing 1991–2002
85Inventor score
Files withFUJITSU LTD7
Top patents by PatentIndex Score
7 records- 0170US6999422B2Communication deviceFUJITSU LTD·Filed 2001·Granted Feb 14, 2006·18 cites·5 claims
- 0262US5469282APower supply system for optical network unit of a fiber in the loopFUJITSU LTD·Filed 1994·Granted Nov 21, 1995·39 cites·9 claims
- 0362US5195124ATesting system for local subscribersFUJITSU LTD·Filed 1991·Granted Mar 16, 1993·39 cites·8 claims
- 0450US7219147B2Method of effecting protection control in communication network and RPR apparatusFUJITSU LTD·Filed 2002·Granted May 15, 2007·2 cites·22 claims
- 0545US5615033AOptical signal transmission apparatus and methodFUJITSU LTD·Filed 1995·Granted Mar 25, 1997·20 cites·17 claims
- 0633US6157704ASubscriber line test system for access networkFUJITSU LTD·Filed 1999·Granted Dec 5, 2000·4 cites·12 claims
- 0723US5483592ARinger unit driving system in a subscriber transmission systemFUJITSU LTD·Filed 1993·Granted Jan 9, 1996·3 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →