Inventor · disambiguated record
Keisuke Kojima
Also filed as: KOJIMA KEISUKE
68 granted patents·19 pending applications·435 citations·filing 1987–2024
98Inventor score
Files withMITSUBISHI ELECTRIC RES LABORATORIES INC32MITSUBISHI ELECTRIC CORP6KOJIMA KEISUKE5MITSUBISHI ELECTRIC RES LAB5NISSAN CHEMICAL IND LTD4
Top patents by PatentIndex Score
87 records- 0197US10069519B1Partition based distribution matcher for probabilistic constellation shapingMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2018·Granted Sep 4, 2018·58 cites·15 claims
- 0296US9806739B1Optical signal transmitter and optical communication system using constant modulus formats, and method for generating modulation codesMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2016·Granted Oct 31, 2017·23 cites·18 claims
- 0395US11143821B1Integrated grating coupler systemMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2020·Granted Oct 12, 2021·5 cites·21 claims
- 0494US11079550B2Grating coupler and integrated grating coupler systemMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2020·Granted Aug 3, 2021·4 cites·17 claims
- 0594US10749554B1System and method for short block length distribution matchingMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2019·Granted Aug 18, 2020·15 cites·20 claims
- 0693US10516503B1Distribution matcherMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2019·Granted Dec 24, 2019·19 cites·18 claims
- 0792US9621275B2Method for generating constant modulus multi-dimensional modulations for coherent optical communicationsMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2014·Granted Apr 11, 2017·15 cites·14 claims
- 0891US10541711B1Short block length distribution matching algorithmMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2019·Granted Jan 21, 2020·10 cites·20 claims
- 0991US10320486B1Optical signal transmitter and optical signal encoder using constant modulus formats, and method for generating modulation codesMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2018·Granted Jun 11, 2019·9 cites·21 claims
- 1091US10234627B1Compact photonic devicesMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2018·Granted Mar 19, 2019·8 cites·15 claims
- 1189US11650371B2Grating coupler and integrated grating coupler systemMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2021·Granted May 16, 2023·2 cites·17 claims
- 1287US10921525B2Grating coupler and integrated grating coupler systemMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2019·Granted Feb 16, 2021·5 cites·14 claims
- 1387US9128242B2Mode-evolution compound converterKOJIMA KEISUKE·Filed 2011·Granted Sep 8, 2015·11 cites·17 claims
- 1487US4817110ASemiconductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 1987·Granted Mar 28, 1989·41 cites·113 claims
- 1586US10962717B2Integrated grating coupler systemMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2020·Granted Mar 30, 2021·2 cites·17 claims
- 1686US9906308B1Methods for compensation of cross-polarization modulation (XPolM) impairments in coherent optical communicationsMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2016·Granted Feb 27, 2018·6 cites·20 claims
- 1786US6814376B2Method and system for generating short pulse signalsTRIQUINT TECHNOLOGY HOLDING CO·Filed 2002·Granted Nov 9, 2004·31 cites·25 claims
- 1885US9584256B2Adaptive error correction code for optical super-channelsMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2014·Granted Feb 28, 2017·6 cites·18 claims
- 1985US9077508B2Adaptively coding and modulating signals transmitted via nonlinear channelsMITSUBISHI ELECTRIC RES LAB·Filed 2012·Granted Jul 7, 2015·8 cites·8 claims
- 2085US4847844ASurface-emitting semiconductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 1988·Granted Jul 11, 1989·35 cites·16 claims
- 2184US11204467B2Integrated grating couplerMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2020·Granted Dec 21, 2021·2 cites·20 claims
- 2284US10120132B2Photonic integrated circuitMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2017·Granted Nov 6, 2018·4 cites·17 claims
- 2383US6797391B2Stain resistant coating compositions, methods of coating and coated articlesBASF NOF COATINGS CO LTD·Filed 2001·Granted Sep 28, 2004·22 cites·15 claims
- 2480US9473250B2System and method for recovering carrier phase in optical communicationsMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2014·Granted Oct 18, 2016·5 cites·20 claims
- 2580US9097852B2Multi-mode interference deviceMITSUBISHI ELECTRIC RES LAB·Filed 2014·Granted Aug 4, 2015·4 cites·19 claims
- 2679US10040965B2Clear coating compositionOSAKA ORGANIC CHEMICAL IND LTD·Filed 2014·Granted Aug 7, 2018·2 cites·5 claims
- 2778US8722562B2Metal fine particle dispersant containing branched polymer compound having ammonium groupKOJIMA KEISUKE·Filed 2009·Granted May 13, 2014·3 cites·16 claims
- 2877US10859769B2Compact photonic devicesMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2018·Granted Dec 8, 2020·3 cites·21 claims
- 2976US9116298B2Multi-mode interference deviceMITSUBISHI ELECTRIC RES LAB·Filed 2013·Granted Aug 25, 2015·4 cites·19 claims
- 3075US9533328B2Clear coating composition and method for coating automobile bodyKONDO MASUO·Filed 2012·Granted Jan 3, 2017·3 cites·4 claims
- 3174US10554309B2Pilot-aided carrier phase estimation for optical communicationsMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2018·Granted Feb 4, 2020·2 cites·19 claims
- 3271US10597491B2Metal fine particle dispersant containing branched polymer compound having ammonium groupNISSAN CHEMICAL IND LTD·Filed 2019·Granted Mar 24, 2020·0 cites·3 claims
- 3370US9557485B2System and method for manipulating polarizations of optical signalMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2015·Granted Jan 31, 2017·2 cites·15 claims
- 3468US9917712B2Frequency domain equalizer for optical communicationsMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2016·Granted Mar 13, 2018·2 cites·10 claims
- 3567US8942517B2Multi-mode interference manipulatorKOJIMA KEISUKE·Filed 2012·Granted Jan 27, 2015·2 cites·19 claims
- 3667US7052769B2Laminate film and article having sameNIPPON PAINT CO LTD·Filed 2004·Granted May 30, 2006·6 cites·16 claims
- 3767US2025384260A1Photonic Neural NetworkMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2024·Application pending·0 cites
- 3865US7373089B2Methods and apparatus for optical data transmission over standard fiberLSI CORP·Filed 2002·Granted May 13, 2008·8 cites·15 claims
- 3964US2023408652A1Light emission device and distance measurement devicePANASONIC IP MAN CO LTD·Filed 2023·Application pending·0 cites
- 4063US12404350B2Method for producing nitrile rubberZEON CORP·Filed 2021·Granted Sep 2, 2025·0 cites·6 claims
- 4163US10180192B2Relief valveTAIHEIYO KOGYO KK·Filed 2015·Granted Jan 15, 2019·1 cites·5 claims
- 4263US2018305573A1Clear coating compositionOSAKA ORGANIC CHEMICAL IND LTD·Filed 2018·Application pending·0 cites
- 4363US2014288264A1Metal fine particle dispersant containing branched polymer compound having ammonium groupUNIV KYUSHU·Filed 2014·Application pending·0 cites
- 4462US9749089B2Fast log-likelihood ratio (LLR) computation for decoding high-order and high-dimensional modulation schemesMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2015·Granted Aug 29, 2017·1 cites·12 claims
- 4560US7068936B2Methods and apparatus for optical switchingAGERE SYSTEMS INC·Filed 2002·Granted Jun 27, 2006·4 cites·21 claims
- 4659US10838282B2Optical ring circuit with electrical filterMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2018·Granted Nov 17, 2020·0 cites·6 claims
- 4759US7320824B2Paint substitute filmHONDA MOTOR CO LTD·Filed 2003·Granted Jan 22, 2008·2 cites·3 claims
- 4858US9893366B2Metal fine particle association and method for producing the sameUNIV GUNMA NAT UNIV CORP·Filed 2013·Granted Feb 13, 2018·1 cites·7 claims
- 4957US4888783ASemiconductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 1988·Granted Dec 19, 1989·12 cites·19 claims
- 5056US11251896B2Generative model for inverse design of materials, devices, and structuresMITSUBISHI ELECTRIC RES LABORATORIES INC·Filed 2020·Granted Feb 15, 2022·0 cites·18 claims
Showing the top 50 of 87 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Keisuke Kojima 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 →