Inventor · disambiguated record
Akihiko Kasukawa
Also filed as: KASUKAWA AKIHIKO
42 granted patents·12 pending applications·540 citations·filing 1991–2016
98Inventor score
Files withFURUKAWA ELECTRIC CO LTD45SHINAGAWA TATSUYUKI2ATR ADVANCED TELECOMM RES INST1FUROKAWA ELECTRIC CO LTD1FURUKAWA ELECTRICAL CO LTD1
Top patents by PatentIndex Score
54 records- 0191US6580740B2Semiconductor laser device having selective absorption qualitiesFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Jun 17, 2003·41 cites·83 claims
- 0289US6545296B1Semiconductor light emitting deviceFURUKAWA ELECTRIC CO LTD·Filed 2000·Granted Apr 8, 2003·30 cites·7 claims
- 0387US5757833ASemiconductor laser having a transparent light emitting section, and a process of producing the sameFURUKAWA ELECTRIC CO LTD·Filed 1996·Granted May 26, 1998·76 cites·7 claims
- 0483US8222658B2Semiconductor light emitting element and method of manufacturing thereforSHINAGAWA TATSUYUKI·Filed 2009·Granted Jul 17, 2012·9 cites·17 claims
- 0580US6731663B1Ridge waveguide type semiconductor laser deviceFURUKAWA ELECTRIC CO LTD·Filed 2000·Granted May 4, 2004·18 cites·8 claims
- 0675US6472691B2Distributed feedback semiconductor laser deviceFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Oct 29, 2002·12 cites·7 claims
- 0774US5363392AStrained quantum well type semiconductor laser deviceFUROKAWA ELECTRIC CO LTD·Filed 1992·Granted Nov 8, 1994·33 cites·5 claims
- 0872US8385379B2Optical semiconductor device and pumping light source for optical fiber amplifierFURUKAWA ELECTRIC CO LTD·Filed 2010·Granted Feb 26, 2013·2 cites·14 claims
- 0972US6396861B1N-type modulation-doped multi quantum well semiconductor laser deviceFURUKAWA ELECTRIC CO LTD·Filed 1999·Granted May 28, 2002·34 cites·12 claims
- 1070US6603138B2Quantum-confinement stark effect optical modulatorFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Aug 5, 2003·9 cites·9 claims
- 1170US5929462ASemiconductor optical device having a strained quantum well structureFURUKAWA ELECTRIC CO LTD·Filed 1996·Granted Jul 27, 1999·37 cites·12 claims
- 1270US5497389ASemiconductor laser device having an active layer and a resonator having a single reflector or pair of reflectorsFURUKAWA ELECTRIC CO LTD·Filed 1994·Granted Mar 5, 1996·25 cites·10 claims
- 1368US6643315B2Distributed feedback semiconductor laser device and multi-wavelength laser arrayFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Nov 4, 2003·8 cites·7 claims
- 1467US5325385ABuried-type semiconductor laser deviceFURUKAWA ELECTRIC CO LTD·Filed 1992·Granted Jun 28, 1994·23 cites·7 claims
- 1566US7072373B2Ridge waveguide semiconductor laser diodeFURUKAWA ELECTRIC CO LTD·Filed 2003·Granted Jul 4, 2006·8 cites·23 claims
- 1666US6618417B2Ridge waveguide semiconductor laser diodeFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Sep 9, 2003·8 cites·19 claims
- 1766US6281523B1Semiconductor optical waveguideFURUKAWA ELECTRIC CO LTD·Filed 1997·Granted Aug 28, 2001·24 cites·3 claims
- 1865US6704342B1Gain-coupled distributed-feedback semiconductor laser deviceFURUKAWA ELECTRIC CO LTD·Filed 2000·Granted Mar 9, 2004·7 cites·18 claims
- 1965US6674783B1Distributed feedback type semiconductor laser device and method of manufacturing the sameFURUKAWA ELECTRIC CO LTD·Filed 2000·Granted Jan 6, 2004·7 cites·6 claims
- 2064US7061954B2Semiconductor optical waveguide structureFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Jun 13, 2006·7 cites·3 claims
- 2161US6911713B2Optical device having a carrier-depleted layerFURUKAWA ELECTRIC CO LTD·Filed 2003·Granted Jun 28, 2005·9 cites·20 claims
- 2260US6493369B2Gain-coupling distributed feedback type semiconductor laser deviceFURUKAWA ELECTRICAL CO LTD·Filed 2001·Granted Dec 10, 2002·7 cites·16 claims
- 2359US6528337B1Process of producing semiconductor layer structureFURUKAWA ELECTRIC CO LTD·Filed 2000·Granted Mar 4, 2003·5 cites·13 claims
- 2458US8222639B2Nitride based semiconductor device and method of manufacturing the sameSHINAGAWA TATSUYUKI·Filed 2009·Granted Jul 17, 2012·1 cites·1 claims
- 2557US7564563B2Laser gyro and electronic device using the sameATR ADVANCED TELECOMM RES INST·Filed 2007·Granted Jul 21, 2009·3 cites·5 claims
- 2657US6737290B2Surface-emitting semiconductor laser device and method for fabricating the same, and surface-emitting semiconductor laser array employing the laser deviceFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted May 18, 2004·4 cites·3 claims
- 2754US6782022B2Semiconductor laser device having improved output power characteristicsFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Aug 24, 2004·4 cites·31 claims
- 2853US7453100B2DFB laser assembly and laser moduleFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Nov 18, 2008·3 cites·40 claims
- 2953US6738405B1Semiconductor laserFURUKAWA ELECTRIC CO LTD·Filed 2000·Granted May 18, 2004·3 cites·3 claims
- 3052US6829277B2Distributed feedback semiconductor laser device and laser moduleFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Dec 7, 2004·3 cites·7 claims
- 3152US6661828B2Semiconductor laser deviceFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Dec 9, 2003·3 cites·11 claims
- 3252US2013149804A1Optical semiconductor device and pumping light source for optical fiber amplifierFURUKAWA ELECTRIC CO LTD·Filed 2013·Application pending·0 cites
- 3350US5854090AMethod of manufacturing wafer bonded semiconductor laser deviceFURUKAWA ELECTRIC CO LTD·Filed 1996·Granted Dec 29, 1998·15 cites·9 claims
- 3449US5953358ASemiconductor laser deviceFURUKAWA ELECTRIC CO LTD·Filed 1997·Granted Sep 14, 1999·14 cites·3 claims
- 3549US5914977ASemiconductor laser having a high-reflectivity reflector on the laser facets thereof, an optical integrated device provided with the semiconductor laser, and a manufacturing method thereforFURUKAWA ELECTRIC CO LTD·Filed 1997·Granted Jun 22, 1999·14 cites·9 claims
- 3645US5666375ASemiconductor quantum well laser having a low threshold current densityFURUKAWA ELECTRIC CO LTD·Filed 1995·Granted Sep 9, 1997·12 cites·4 claims
- 3742US9960572B2Semiconductor deviceFURUKAWA ELECTRIC CO LTD·Filed 2016·Granted May 1, 2018·0 cites·2 claims
- 3840US6278139B1Semiconductor light-emitting diodeFURUKAWA ELECTRIC CO LTD·Filed 1999·Granted Aug 21, 2001·8 cites·4 claims
- 3939US2002181525A1Semiconductor laser deviceFURUKAWA ELECTRIC CO LTD·Filed 2002·Application pending·0 cites
- 4037US6690701B2Semiconductor laser deviceFURUKAWA ELECTRIC CO LTD·Filed 2000·Granted Feb 10, 2004·0 cites·19 claims
- 4137US2002136253A1Semiconductor laser device and method for fabricating sameFURUKAWA ELECTRIC CO LTD·Filed 2001·Application pending·0 cites
- 4237US2003047738A1Semiconductor laser device having selective absorption qualities over a wide temperature rangeFURUKAWA ELECTRIC CO LTD·Filed 2002·Application pending·0 cites
- 4337US2002146050A1Semiconductor laser deviceFURUKAWA ELECTRIC CO LTD·Filed 2001·Application pending·0 cites
- 4437US2011261849A1Semiconductor light emitting element and method of manufacturing thereofFURUKAWA ELECTRIC CO LTD·Filed 2011·Application pending·0 cites
- 4537US2002031154A1Surface emitting semiconductor laser deviceFiled 2001·Application pending·0 cites
- 4637US2002043209A1Method of fabricating compound semiconductor deviceFURUKAWA ELECTRIC CO LTD·Filed 2001·Application pending·0 cites
- 4737US2002012373A1Semiconductor laser device and method of fabricating sameFURUKAWA ELECTRIC CO LTD·Filed 2001·Application pending·0 cites
- 4836US6810063B1Semiconductor laser deviceFURUKAWA ELECTRIC CO LTD·Filed 2000·Granted Oct 26, 2004·0 cites·30 claims
- 4936US5390208AStrained quantum well type semiconductor laser deviceFURUKAWA ELECTRIC CO LTD·Filed 1993·Granted Feb 14, 1995·5 cites·4 claims
- 5036US2002110169A1Vertical cavity surface emitting laser device and vertical cavity surface emitting laser arrayFiled 2001·Application pending·0 cites
Showing the top 50 of 54 patent records by PatentIndex Score.
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