Inventor · disambiguated record
Kazue Otsuka
Also filed as: OKAZAKI KAZUE · OTSUKA KAZUE
19 granted patents·839 citations·filing 1993–2003
96Inventor score
Files withFUJITSU LTD19
Top patents by PatentIndex Score
19 records- 0197US5894362AOptical communication system which determines the spectrum of a wavelength division multiplexed signal and performs various processes in accordance with the determined spectrumFUJITSU LTD·Filed 1996·Granted Apr 13, 1999·179 cites·26 claims
- 0295US5696614AOptical wavelength multiplex transmission method and optical dispersion compensation methodFUJITSU LTD·Filed 1997·Granted Dec 9, 1997·85 cites·3 claims
- 0392US6351323B1Optical transmission apparatus, optical transmission system, and optical terminal stationFUJITSU LTD·Filed 1998·Granted Feb 26, 2002·87 cites·28 claims
- 0490US6583900B2Optical transmission apparatus, optical transmission system, and optical terminal stationFUJITSU LTD·Filed 2001·Granted Jun 24, 2003·27 cites·26 claims
- 0590US5602666AOptical dispersion compensation method for shifting a zero dispersion wavelength of an optical fiber to compensate for dispersion in an optical systemFUJITSU LTD·Filed 1995·Granted Feb 11, 1997·56 cites·19 claims
- 0689US5841557AMethod and apparatus for scrambling the polarization of signal lights forming a wavelength division multiplexed signal lightFUJITSU LTD·Filed 1996·Granted Nov 24, 1998·106 cites·42 claims
- 0788US5636046AOptical dispersion compensation method using transmissible band determined from synergetic effect of self phase modulation and group velocity dispersionFUJITSU LTD·Filed 1995·Granted Jun 3, 1997·48 cites·12 claims
- 0884US6067187AOptical amplifier and optical communication system employing the sameFUJITSU LTD·Filed 1996·Granted May 23, 2000·60 cites·28 claims
- 0983US6243176B1Optical wavelength multiplex transmission method and optical dispersion compensation methodFUJITSU LTD·Filed 1997·Granted Jun 5, 2001·34 cites·116 claims
- 1080US5612807AOptical dispersion compensation method for shifting a zero dispersion wavelength of an optical fiber to compensate for dispersion in an optical systemFUJITSU LTD·Filed 1995·Granted Mar 18, 1997·31 cites·19 claims
- 1172US6538782B1Light branching/inserting apparatus and light branching apparatus using wavelength selection filterFUJITSU LTD·Filed 1998·Granted Mar 25, 2003·33 cites·44 claims
- 1264US6252687B1Optical wavelength multiplex transmission method and optical dispersion compensation methodFUJITSU LTD·Filed 1998·Granted Jun 26, 2001·13 cites·69 claims
- 1364US5886804AOptical transmission system employing single mode optical transmission fiberFUJITSU LTD·Filed 1996·Granted Mar 23, 1999·32 cites·20 claims
- 1462US7142785B2Light branching/inserting apparatus and light branching apparatus using wavelength selection filterFUJITSU LTD·Filed 2003·Granted Nov 28, 2006·4 cites·16 claims
- 1562US6275314B1Optical wavelength multiplex transmission method and optical dispersion compensation methodFUJITSU LTD·Filed 1998·Granted Aug 14, 2001·13 cites·138 claims
- 1642US6930824B1Optical amplifier which compensates for dispersion of a WDM optical signalFUJITSU LTD·Filed 1998·Granted Aug 16, 2005·11 cites·18 claims
- 1742US5440207AReference light source device using laserFUJITSU LTD·Filed 1993·Granted Aug 8, 1995·8 cites·13 claims
- 1838US5790292AOptical fiber transmission lineFUJITSU LTD·Filed 1995·Granted Aug 4, 1998·7 cites·9 claims
- 1936US5856881AOptical fiber transmission lineFUJITSU LTD·Filed 1997·Granted Jan 5, 1999·5 cites·2 claims
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