Inventor · disambiguated record
Kensuke Ogawa
Also filed as: OGAWA KENSUKE
38 granted patents·5 pending applications·827 citations·filing 1989–2024
98Inventor score
Files withFUJIKURA LTD23HITACHI LTD8OGAWA KENSUKE3BUSSAN NANOTECH RES INST INC2FUJITSU OPTICAL COMPONENTS LTD2
Top patents by PatentIndex Score
43 records- 0197US5332910ASemiconductor optical device with nanowhiskersHITACHI LTD·Filed 1993·Granted Jul 26, 1994·222 cites·24 claims
- 0296US9529151B2Polarization conversion elementFUJIKURA LTD·Filed 2015·Granted Dec 27, 2016·21 cites·17 claims
- 0396US9448425B2Optical waveguide element and optical modulatorFUJIKURA LTD·Filed 2015·Granted Sep 20, 2016·24 cites·9 claims
- 0495US10921517B2Electro-optic waveguide device and optical moduleLUMENTUM JAPAN INC·Filed 2019·Granted Feb 16, 2021·10 cites·20 claims
- 0595US9817294B2Optical modulation deviceFUJIKURA LTD·Filed 2015·Granted Nov 14, 2017·12 cites·22 claims
- 0694US9927637B2Optical waveguide elementFUJIKURA LTD·Filed 2017·Granted Mar 27, 2018·7 cites·11 claims
- 0794US9726822B1Optical integrated circuitFUJIKURA LTD·Filed 2017·Granted Aug 8, 2017·7 cites·9 claims
- 0894US9557482B2High-order polarization conversion device, optical waveguide device, and DP-QPSK modulatorFUJIKURA LTD·Filed 2015·Granted Jan 31, 2017·15 cites·10 claims
- 0992US5362972ASemiconductor device using whiskersHITACHI LTD·Filed 1991·Granted Nov 8, 1994·192 cites·48 claims
- 1091US9110348B2Optical element and Mach-Zehnder optical waveguide elementFUJIKURA LTD·Filed 2014·Granted Aug 18, 2015·13 cites·12 claims
- 1189US8270789B2Optical waveguide element, chromatic dispersion compensator, methods for designing chromatic dispersion compensator, optical filter, methods for designing optical filter, optical resonator and methods for designing optical resonatorOGAWA KENSUKE·Filed 2010·Granted Sep 18, 2012·13 cites·20 claims
- 1288US7065280B2Dispersion compensation deviceBUSSAN NANOTECH RES INC·Filed 2005·Granted Jun 20, 2006·37 cites·9 claims
- 1387US9857534B2Optical waveguide device having a light absorber for split out modesFUJIKURA LTD·Filed 2013·Granted Jan 2, 2018·9 cites·34 claims
- 1486US9880404B2Optical waveguide device and method of manufacturing the sameFUJIKURA LTD·Filed 2016·Granted Jan 30, 2018·3 cites·10 claims
- 1585US5455451ASuperconductized semiconductor device using penetrating Cooper pairsHITACHI LTD·Filed 1993·Granted Oct 3, 1995·46 cites·37 claims
- 1684US8699013B2Chromatic dispersion measurement device and chromatic dispersion measurement method for measuring the dispersion of light pulsesFUJIKURA LTD·Filed 2013·Granted Apr 15, 2014·6 cites·13 claims
- 1784US8270790B2Planar optical waveguide element, chromatic dispersion compensator, methods for designing chromatic dispersion compensator, optical filter, methods for designing optical filter, optical resonator and methods for designing optical resonatorOGAWA KENSUKE·Filed 2010·Granted Sep 18, 2012·8 cites·17 claims
- 1884US6819428B2Instruments of optical pulse characterizationBUSSAN NANOTECH RES INST INC·Filed 2002·Granted Nov 16, 2004·26 cites·27 claims
- 1981US10014953B2Optical receiver circuit and adjustment method for sameFUJIKURA LTD·Filed 2016·Granted Jul 3, 2018·4 cites·14 claims
- 2079US9335472B2Planar optical waveguide device and DP-QPSK modulatorFUJIKURA LTD·Filed 2014·Granted May 10, 2016·4 cites·14 claims
- 2178US5315573ANon-linear optical saturable absorber layer in an optical disk to discriminate wavelength above or below a threshold level of intensityHITACHI LTD·Filed 1992·Granted May 24, 1994·26 cites·16 claims
- 2278US4957337AOptical quantum interference device and method of modulating light using sameHITACHI LTD·Filed 1989·Granted Sep 18, 1990·30 cites·31 claims
- 2376US8842288B2Phase shift interferometerFUJIKURA LTD·Filed 2013·Granted Sep 23, 2014·4 cites·13 claims
- 2474US5091980AOptical quantum interference device/optical computer and method of modulating light using sameHITACHI LTD·Filed 1990·Granted Feb 25, 1992·29 cites·14 claims
- 2569US7426038B2Detection device, optical path length measurement device, measurement instrument, optical member evaluation method, and temperature change detection methodFUJIKURA LTD·Filed 2004·Granted Sep 16, 2008·12 cites·27 claims
- 2668US8404133B2Manufacturing method of planar optical waveguide device with grating structureSAKUMA KEN·Filed 2009·Granted Mar 26, 2013·5 cites·9 claims
- 2767US12189220B2Optical modulation elementFUJITSU OPTICAL COMPONENTS LTD·Filed 2022·Granted Jan 7, 2025·0 cites·5 claims
- 2866US8227178B2Manufacturing method of planar optical waveguide device with grating structureSAKUMA KEN·Filed 2009·Granted Jul 24, 2012·4 cites·10 claims
- 2963US9008476B2Polarization conversion deviceFUJIKURA LTD·Filed 2014·Granted Apr 14, 2015·1 cites·13 claims
- 3061US2024353697A1Optical modulator element, optical transmitter, and optical transceiverFUJITSU OPTICAL COMPONENTS LTD·Filed 2024·Application pending·0 cites
- 3159US7053996B2Instruments of optical pulse characterizationBUSSAN NANOTECH RES INST INC·Filed 2004·Granted May 30, 2006·6 cites·6 claims
- 3254US8542970B2Planar optical waveguide element, chromatic dispersion compensator, optical filter, optical resonator and methods for designing the element, chromatic dispersion compensator, optical filter and optical resonatorFUJIKURA LTD·Filed 2012·Granted Sep 24, 2013·0 cites·2 claims
- 3354US5485018ANanofabricated device for multiple-state logic operationHITACHI LTD·Filed 1994·Granted Jan 16, 1996·15 cites·22 claims
- 3453US2013183440A1Optical waveguide-type wavelength dispersion compensation device and manufacturing method thereofFUJIKURA LTD·Filed 2012·Application pending·0 cites
- 3552US5033810AOptical deviceHITACHI LTD·Filed 1989·Granted Jul 23, 1991·14 cites·18 claims
- 3649US2010316341A1Optical waveguide-type wavelength dispersion compensation device and manufacturing method thereofFUJIKURA LTD·Filed 2010·Application pending·0 cites
- 3749US2010322559A1Planar optical waveguide element, chromatic dispersion compensator, optical filter, optical resonator and methods for designing the element, chromatic dispersion compensator, optical filter and optical resonatorFUJIKURA LTD·Filed 2010·Application pending·0 cites
- 3848US10627572B2Optical waveguide elementFUJIKURA LTD·Filed 2018·Granted Apr 21, 2020·0 cites·10 claims
- 3947US6674931B2Adaptive dispersion compensation device and control method for the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jan 6, 2004·1 cites·5 claims
- 4045US7515785B2Dispersion compensation element, optical crystal, dispersion compensation system, dispersion compensation methodFUJIKURA LTD·Filed 2004·Granted Apr 7, 2009·1 cites·10 claims
- 4141US8824044B2Planar optical waveguide element, chromatic dispersion compensator, optical filter, optical resonator and methods for designing the element, chromatic dispersion compensator, optical filter and optical resonatorOGAWA KENSUKE·Filed 2010·Granted Sep 2, 2014·0 cites·13 claims
- 4240US9857533B2Optical waveguide element, light-receiving device, optical communication device, optical modulator, optical resonator, and method for manufacturing optical waveguide elementFUJIKURA LTD·Filed 2017·Granted Jan 2, 2018·0 cites·14 claims
- 4340US2010254656A1Optical waveguide, method for manufacturing the optical waveguide, and optical device provided with the optical waveguideFUJIKURA LTD·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →