Inventor · disambiguated record
Naoki Tsukiji
Also filed as: TSUKIJI NAOKI
45 granted patents·12 pending applications·315 citations·filing 1994–2025
98Inventor score
Files withFURUKAWA ELECTRIC CO LTD50FURUKAWA SEISAKUSHO KK1TAKAKI KEISHI1THE FURUKAWA1TSUKIJI NAOKI1
Top patents by PatentIndex Score
57 records- 0184US6807206B2Semiconductor laser device and drive control method for a semiconductor laser deviceFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Oct 19, 2004·22 cites·36 claims
- 0283US6614822B2Semiconductor laser devices, and semiconductor laser modules and optical communication systems using the sameFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Sep 2, 2003·22 cites·31 claims
- 0379US6845117B2Semiconductor laser device, semiconductor laser module, and optical fiber amplifier using the device or moduleFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Jan 18, 2005·16 cites·28 claims
- 0478US7199919B2Tunable multimode wavelength division multiplex Raman pump and amplifier, and a system, method, and computer program product for controlling tunable Raman pumps, and Raman amplifiersFURUKAWA ELECTRIC CO LTD·Filed 2003·Granted Apr 3, 2007·14 cites·42 claims
- 0578US6822982B2Device and method for providing a tunable semiconductor laserFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Nov 23, 2004·14 cites·34 claims
- 0676US6782028B2Semiconductor laser device for use in a semiconductor laser module and an optical amplifierFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Aug 24, 2004·24 cites·35 claims
- 0776US6765935B2Semiconductor laser module, manufacturing method thereof and optical amplifierFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Jul 20, 2004·14 cites·67 claims
- 0874US6567447B1Semiconductor laser device and semiconductor laser module using the sameFURUKAWA ELECTRIC CO LTD·Filed 2000·Granted May 20, 2003·12 cites·40 claims
- 0974US2025343387A1Optical deviceFURUKAWA ELECTRIC CO LTD·Filed 2025·Application pending·0 cites
- 1073US7653317B2Semiconductor laser deviceFURUKAWA ELECTRIC CO LTD·Filed 2006·Granted Jan 26, 2010·4 cites·21 claims
- 1173US6614823B2Semiconductor laser device having a diffraction grating on a light reflection sideFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Sep 2, 2003·11 cites·40 claims
- 1272US8385379B2Optical semiconductor device and pumping light source for optical fiber amplifierFURUKAWA ELECTRIC CO LTD·Filed 2010·Granted Feb 26, 2013·2 cites·14 claims
- 1372US7881353B2Surface emitting laser element arrayFURUKAWA ELECTRIC CO LTD·Filed 2009·Granted Feb 1, 2011·4 cites·12 claims
- 1472US6901095B2Semiconductor laser module, optical measuring method and optical measuring apparatusFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted May 31, 2005·12 cites·10 claims
- 1572US6750478B2Semiconductor laser device and method for suppressing fabry perot oscillationsFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Jun 15, 2004·10 cites·48 claims
- 1667US6643308B2Semiconductor laser device and method for suppressing injection currentFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Nov 4, 2003·8 cites·44 claims
- 1764US6798798B2Semiconductor laser apparatus and fabrication method of same, and semiconductor laser moduleFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Sep 28, 2004·7 cites·47 claims
- 1864US6335216B1Method for fabricating a semiconductor optical device having a ridge stripeTHE FURUKAWA·Filed 2000·Granted Jan 1, 2002·10 cites·7 claims
- 1963US6680960B2Semiconductor laser device having a diffraction grating on a light emission sideFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Jan 20, 2004·6 cites·46 claims
- 2062US8532155B2Optical interconnection systemFURUKAWA ELECTRIC CO LTD·Filed 2013·Granted Sep 10, 2013·1 cites·12 claims
- 2162US6603785B2Semiconductor laser deviceFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Aug 5, 2003·6 cites·10 claims
- 2260US7006545B2Semiconductor laser device and optical fiber amplifier using the sameFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Feb 28, 2006·6 cites·18 claims
- 2360US6829285B2Semiconductor laser device and method for effectively reducing facet reflectivityFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Dec 7, 2004·5 cites·40 claims
- 2460US5441912AMethod of manufacturing a laser diodeFURUKAWA ELECTRIC CO LTD·Filed 1994·Granted Aug 15, 1995·19 cites·2 claims
- 2559US6967982B2Semiconductor laser device with a strain reduction cushion function, semiconductor laser module, and semiconductor laser device fabrication methodFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Nov 22, 2005·6 cites·39 claims
- 2657US6947463B2Semiconductor laser device for use in a laser moduleFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Sep 20, 2005·4 cites·62 claims
- 2755US6760352B2Semiconductor laser device with a diffraction grating and semiconductor laser moduleFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Jul 6, 2004·7 cites·33 claims
- 2854US6876680B2Semiconductor laser device, semiconductor laser module, and optical fiber amplifierFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Apr 5, 2005·3 cites·13 claims
- 2953US7072372B2Semiconductor laser device, semiconductor laser module, and optical fiber amplifierFURUKAWA ELECTRIC CO LTD·Filed 2003·Granted Jul 4, 2006·3 cites·11 claims
- 3053US6950452B2Semiconductor laser module and method for simultaneously reducing relative intensity noise (RIN) and stimulated brillouin scattering (SBS)FURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Sep 27, 2005·5 cites·13 claims
- 3153US6921677B2Method of manufacturing semiconductor element, and semiconductor element manufactured with this methodFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Jul 26, 2005·3 cites·8 claims
- 3253US6870871B2Semiconductor laser devices, and semiconductor laser modules and optical communication systems using the sameFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Mar 22, 2005·4 cites·33 claims
- 3353US6844607B2Photodiode array device, a photodiode module, and a structure for connecting the photodiode module and an optical connectorFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Jan 18, 2005·4 cites·25 claims
- 3453US6810049B2Semiconductor laser device and semiconductor laser moduleFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Oct 26, 2004·6 cites·90 claims
- 3552US2013149804A1Optical semiconductor device and pumping light source for optical fiber amplifierFURUKAWA ELECTRIC CO LTD·Filed 2013·Application pending·0 cites
- 3650US6925102B2Semiconductor laser device, semiconductor laser module, and Raman amplifier using the device or moduleFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Aug 2, 2005·2 cites·16 claims
- 3750US6898228B2Semiconductor laser device, semiconductor laser module, Raman amplifier using the device or module, and method for forming a suitable current blocking layerFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted May 24, 2005·2 cites·20 claims
- 3849US7082152B2Semiconductor laser apparatus, semiconductor laser module, optical fiber amplifier and semiconductor laser usage determining methodFURUKAWA ELECTRIC CO LTD·Filed 2003·Granted Jul 25, 2006·1 cites·3 claims
- 3949US6777769B2Light-receiving element, light-receiving element array and light-receiving module and method for high frequency characteristicsFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Aug 17, 2004·2 cites·7 claims
- 4048US6996149B2Semiconductor laser device and semiconductor laser moduleFURUKAWA ELECTRIC CO LTD·Filed 2003·Granted Feb 7, 2006·1 cites·11 claims
- 4148US6746964B2Method of manufacturing semiconductor laser elementFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Jun 8, 2004·1 cites·15 claims
- 4247US6639316B1Electrode having substrate and surface electrode components for a semiconductor deviceFURUKAWA ELECTRIC CO LTD·Filed 2000·Granted Oct 28, 2003·6 cites·17 claims
- 4346US7194014B2Semiconductor laser device, semiconductor laser module, and optical fiber amplifier using the semiconductor laser moduleFURUKAWA ELECTRIC CO LTD·Filed 2003·Granted Mar 20, 2007·1 cites·7 claims
- 4446US6934311B2Semiconductor laser module and Raman amplifierFURUKAWA SEISAKUSHO KK·Filed 2002·Granted Aug 23, 2005·2 cites·21 claims
- 4545US7031362B2Semiconductor laser device and semiconductor laser module using the device and method for low reflectivityFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Apr 18, 2006·3 cites·10 claims
- 4639US2003021314A1Distributed bragg reflector semiconductor laser suitable for use in an optical amplifierFURUKAWA ELECTRIC CO LTD·Filed 2002·Application pending·0 cites
- 4739US2004057485A1Semiconductor laser device, semiconductor laser module, and optical fiber amplifierFURUKAWA ELECTRIC CO LTD·Filed 2003·Application pending·0 cites
- 4839US2003002556A1Semiconductor laser device, a semiconductor laser array, and a method for aligning optical fibers with the device or arrayFURUKAWA ELECTRIC CO LTD·Filed 2002·Application pending·0 cites
- 4939US2003133482A1Semiconductor laser device and method for reducing stimulated brillouin scattering (SBS)FURUKAWA ELECTRIC CO LTD·Filed 2002·Application pending·0 cites
- 5039US2003063645A1Semiconductor laser device and method for suppressing fabry perot oscillationsFURUKAWA ELECTRIC CO LTD·Filed 2002·Application pending·0 cites
Showing the top 50 of 57 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Naoki Tsukiji files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →