Inventor · disambiguated record
Junichi Ishiwatari
Also filed as: ISHIWATARI JUNICHI
11 granted patents·1 pending application·242 citations·filing 1992–2005
91Inventor score
Files withFUJITSU LTD12
Top patents by PatentIndex Score
12 records- 0184US6487686B1Error correction method and transmission apparatusFUJITSU LTD·Filed 1999·Granted Nov 26, 2002·65 cites·15 claims
- 0280US5446725AMethod of changing over path switch in optical transmission deviceFUJITSU LTD·Filed 1994·Granted Aug 29, 1995·73 cites·16 claims
- 0368US6642845B2Signal transmitter and signal quality monitoring deviceFUJITSU LTD·Filed 2002·Granted Nov 4, 2003·9 cites·24 claims
- 0467US6201788B1Transmission device and system having the sameFUJITSU LTD·Filed 1997·Granted Mar 13, 2001·32 cites·14 claims
- 0560US5754545AAdd-drop multiplexer with enhancement of accessibility to signals in different hierarchical levels and flexibility in various services and circuit setting operationsFUJITSU LTD·Filed 1996·Granted May 19, 1998·24 cites·39 claims
- 0650US6728925B2Error correcting method and apparatusFUJITSU LTD·Filed 1999·Granted Apr 27, 2004·14 cites·19 claims
- 0740US5504761AApparatus for detecting error in a communications lineFUJITSU LTD·Filed 1994·Granted Apr 2, 1996·8 cites·8 claims
- 0839US7020395B2Optical transmission apparatus monitoring optical performanceFUJITSU LTD·Filed 2003·Granted Mar 28, 2006·0 cites·6 claims
- 0938US5574719ATransmission systemFUJITSU LTD·Filed 1994·Granted Nov 12, 1996·7 cites·9 claims
- 1037US5319488ATerminal equipment and optical communication system using the sameFUJITSU LTD·Filed 1992·Granted Jun 7, 1994·9 cites·18 claims
- 1137US2006215681A1Transmission device and upgrade method thereofFUJITSU LTD·Filed 2005·Application pending·0 cites
- 1225US6252502B1Alarm detection apparatusFUJITSU LTD·Filed 1999·Granted Jun 26, 2001·1 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →