Inventor · disambiguated record
Noboru Edagawa
Also filed as: EDAGAWA NOBORU
59 granted patents·8 pending applications·1,673 citations·filing 1988–2008
99Inventor score
Top patents by PatentIndex Score
67 records- 0195US6005702AOptical transmission device, WDM optical transmission apparatus, and optical transmission system using return-to-zero optical pulsesKOKUSAI DENSHIN DENWA CO LTD·Filed 1997·Granted Dec 21, 1999·135 cites·20 claims
- 0293US6775478B2Optical TDM multiplexer, optical TDM demultiplexer, WDM/TDM converter and TDM/WDM converterDDI CORP·Filed 2001·Granted Aug 10, 2004·40 cites·44 claims
- 0390US5786918AOptical communication system and optical transmitting deviceKOKUSAI DENSHIN DENWA CO LTD·Filed 1995·Granted Jul 28, 1998·119 cites·13 claims
- 0487US6532091B1Optical digital regeneratorKDD CORP·Filed 1999·Granted Mar 11, 2003·92 cites·31 claims
- 0584US6445478B2Optical pulse position detecting circuit and an optical pulse generating apparatus and their methodsMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Sep 3, 2002·26 cites·8 claims
- 0684US6236488B1Optical pulse position detecting circuit and an optical pulse generating apparatus and their methodsMITSUBISHI ELECTRIC CORP·Filed 1998·Granted May 22, 2001·59 cites·20 claims
- 0784US5625479ASoliton optical communication system and optical transmitter and optical receiver thereforKOKUSAI DENSHIN DENWA CO LTD·Filed 1995·Granted Apr 29, 1997·52 cites·10 claims
- 0883US5246475AMethod for preparing a fused silica glass body co-doped with a rare earth element and aluminumSHINETSU CHEMICAL CO·Filed 1992·Granted Sep 21, 1993·34 cites·7 claims
- 0983US5042039AEr-doped optical fiber laser deviceKOKUSAI BENSHIN KABUSHIKI KAIS·Filed 1989·Granted Aug 20, 1991·35 cites·3 claims
- 1082US7558482B2Method for dynamically establishing logical link in PON systems and an optical network unit for the methodKDDI CORP·Filed 2005·Granted Jul 7, 2009·10 cites·8 claims
- 1182US6594428B1Dispersion compensating optical transmission line and systemKDD CORP·Filed 2000·Granted Jul 15, 2003·27 cites·43 claims
- 1282US5589969AWavelength division multiplexed optical fiber transmission equipmentKOKUSAI DENSHIN DENWA CO LTD·Filed 1995·Granted Dec 31, 1996·58 cites·5 claims
- 1381US5710660AGain-controllable optical amplifier and optical gain-control methodKOKUSAI DENSHIN DENWA CO LTD·Filed 1996·Granted Jan 20, 1998·53 cites·25 claims
- 1479US6754420B2Optical fiber transmission lineKDDI SUBMARINE CABLE SYS INC·Filed 2002·Granted Jun 22, 2004·22 cites·6 claims
- 1579US4923291AOptical amplificationKOKUSAI DENSHIN DENWA CO LTD·Filed 1988·Granted May 8, 1990·47 cites·6 claims
- 1677US5559910AWavelength division multiplexed optical fiber transmission equiptmentKOKUSAI DENSHIN DENWA CO LTD·Filed 1995·Granted Sep 24, 1996·57 cites·8 claims
- 1776US7551854B2Method to provide caller's location in IP phone system, optical transmission system, optical connector, and optical network unitKDDI CORP·Filed 2005·Granted Jun 23, 2009·6 cites·14 claims
- 1875US6331907B1Multi-wavelength light source and discrete-wavelength-variable light sourceKOKUSAI DENSHIN DENWA CO LTD·Filed 2000·Granted Dec 18, 2001·8 cites·14 claims
- 1972US5838477AOptical submarine branching deviceKOKUSAI DENSHIN DENWA CO LTD·Filed 1996·Granted Nov 17, 1998·44 cites·5 claims
- 2071US6091538AGain equalizing apparatusKOKUSAI DENSHIN DENWA CO LTD·Filed 1997·Granted Jul 18, 2000·33 cites·10 claims
- 2171US5898714AOptical pulse generatorKOKUSAI DENSHIN DENWA CO LTD·Filed 1997·Granted Apr 27, 1999·34 cites·6 claims
- 2270US6215566B1Multi-wavelength light source and discrete-wavelength-variable light sourceKOKUSAI DENSHIN DENWA CO LTD·Filed 2000·Granted Apr 10, 2001·6 cites·5 claims
- 2370US5959764AWavelength converter, optically operational device and optical pulse phase detecting circuitKOKUSAI DENSHIN DENWA CO LTD·Filed 1997·Granted Sep 28, 1999·33 cites·20 claims
- 2469US6748178B2Optical transmission lineDDI CORP·Filed 2001·Granted Jun 8, 2004·11 cites·3 claims
- 2569US5642215AOptical transmission systemKOKUSAI DENSHIN DENWA CO LTD·Filed 1995·Granted Jun 24, 1997·42 cites·6 claims
- 2669US5629795AOptical amplifying-repeating transmission systemKOKUSAI DENSHIN DENWA CO LTD·Filed 1995·Granted May 13, 1997·41 cites·6 claims
- 2768US6519078B2Raman amplifierKDD SUBMARINE CABLE SYS INC·Filed 2001·Granted Feb 11, 2003·9 cites·10 claims
- 2868US6515793B2Optical waveform shaperDDI CORP·Filed 2000·Granted Feb 4, 2003·10 cites·8 claims
- 2967US6021235AWavelength-division multiplexing optical transmission systemKOKUSAI DENSHIN DENWA CO LTD·Filed 1998·Granted Feb 1, 2000·35 cites·20 claims
- 3066US6768872B1Optical transmission system, optical transmission line and optical transmitterKDD CORP·Filed 2000·Granted Jul 27, 2004·9 cites·30 claims
- 3166US6459518B1Optical transmitting apparatusKDD CORP·Filed 1999·Granted Oct 1, 2002·33 cites·23 claims
- 3266US5574590AOptical amplifying transmitting systemKOKUSAI DENSHIN DENWA CO LTD·Filed 1995·Granted Nov 12, 1996·36 cites·10 claims
- 3365US5872647AOptical transmitting terminalKOKUSAI DENSHIN DENWA CO LTD·Filed 1996·Granted Feb 16, 1999·32 cites·6 claims
- 3465US4899043AFault monitoring system for optical fiber communication systemsKOKUSAI DENSHIN DENWA CO LTD·Filed 1988·Granted Feb 6, 1990·28 cites·2 claims
- 3564US6115173AOptical amplifying transmission system and optical amplifierKDD CORP·Filed 1998·Granted Sep 5, 2000·30 cites·28 claims
- 3664US5889607AOptical modulator, optical short pulse generating device, optical waveform shaping device, and optical demultiplexer deviceKOKUSAI DENSHIN DENWA CO LTD·Filed 1997·Granted Mar 30, 1999·32 cites·8 claims
- 3763US4972513AMulti-point optical amplification repeating systemKOKUSAI DENSHIN DENWA CO LTD·Filed 1988·Granted Nov 20, 1990·26 cites·6 claims
- 3862US6614588B1Optical amplifier having various control circuitryMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Sep 2, 2003·6 cites·17 claims
- 3962US5430795AOptical transmitter with the signal light of reduced degree of polarization and optical depolarizing circuitKOKUSAI DENSHIN DENWA CO LTD·Filed 1993·Granted Jul 4, 1995·31 cites·8 claims
- 4061US6219163B1Multi-wavelength light source and discrete-wavelength-variable light sourceKOKUSAI DENSHIN DENWA CO LTD·Filed 2000·Granted Apr 17, 2001·3 cites·5 claims
- 4159US5162936AApparatus for monitoring the operation of an optical repeaterKOKUSAI DENSHIN DENWA CO LTD·Filed 1991·Granted Nov 10, 1992·28 cites·6 claims
- 4257US5892608AOptical receiver device for dark soliton lightwaveKOKUSAI DENSHIN DENWA CO LTD·Filed 1996·Granted Apr 6, 1999·15 cites·2 claims
- 4357US5401957AOptical waveform shaping device for peforming waveform equalization and timing synchronizationKOKUSAI DENSHIN DENWA CO LTD·Filed 1994·Granted Mar 28, 1995·25 cites·6 claims
- 4454US6728437B2Pumping light generator and fiber Raman amplifierKDD SUBMARINE CABLE SYS INC·Filed 2001·Granted Apr 27, 2004·3 cites·13 claims
- 4554US5966228AOptical transmission system and optical repeaterKOKUSAI DENSHIN DENWA CO LTD·Filed 1996·Granted Oct 12, 1999·17 cites·6 claims
- 4652US5471333AOptical communication systemKOKUSAI DENSHIN DENWA CO LTD·Filed 1993·Granted Nov 28, 1995·21 cites·3 claims
- 4750US6285477B1Multi-wavelength light source and discrete-wavelength-variable light sourceKOKUSAI DENSHIN DENWA CO LTD·Filed 1999·Granted Sep 4, 2001·14 cites·14 claims
- 4850US5808789AOptically amplifying transmission systemKOKUSAI DENSHIN DENWA CO LTD·Filed 1997·Granted Sep 15, 1998·17 cites·22 claims
- 4950US5260816AOptical amplifier with erbium-doped fiberKOKUSAI DENSHIN DENWA CO LTD·Filed 1992·Granted Nov 9, 1993·11 cites·1 claims
- 5049US6188510B1Optical amplifying transmission system and optical amplifying repeaterKDD CORP·Filed 1999·Granted Feb 13, 2001·16 cites·14 claims
Showing the top 50 of 67 patent records by PatentIndex Score.
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