Inventor
KOJIMA KEISUKE
JP69 patents
⚠️ This page may combine multiple inventors who share the name “KOJIMA KEISUKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI ELECTRIC RES LABORATORIES INC
26 patentsUS10069519B1Sep 4, 2018
Partition based distribution matcher for probabilistic constellation shaping
MITSUBISHI ELECTRIC RES LABORATORIES INC58 citations97
US9806739B1Oct 31, 2017
Optical signal transmitter and optical communication system using constant modulus formats, and method for generating modulation codes
MITSUBISHI ELECTRIC RES LABORATORIES INC23 citations94
US10516503B1Dec 24, 2019
Distribution matcher
MITSUBISHI ELECTRIC RES LABORATORIES INC19 citations93
US10749554B1Aug 18, 2020
System and method for short block length distribution matching
MITSUBISHI ELECTRIC RES LABORATORIES INC15 citations86
US10320486B1Jun 11, 2019
Optical signal transmitter and optical signal encoder using constant modulus formats, and method for generating modulation codes
MITSUBISHI ELECTRIC RES LABORATORIES INC9 citations84
US10234627B1Mar 19, 2019
Compact photonic devices
MITSUBISHI ELECTRIC RES LABORATORIES INC8 citations84
US9621275B2Apr 11, 2017
Method for generating constant modulus multi-dimensional modulations for coherent optical communications
MITSUBISHI ELECTRIC RES LABORATORIES INC15 citations84
US10541711B1Jan 21, 2020
Short block length distribution matching algorithm
MITSUBISHI ELECTRIC RES LABORATORIES INC10 citations83
US11143821B1Oct 12, 2021
Integrated grating coupler system
MITSUBISHI ELECTRIC RES LABORATORIES INC5 citations73
US10554309B2Feb 4, 2020
Pilot-aided carrier phase estimation for optical communications
MITSUBISHI ELECTRIC RES LABORATORIES INC2 citations73
US10120132B2Nov 6, 2018
Photonic integrated circuit
MITSUBISHI ELECTRIC RES LABORATORIES INC4 citations73
US9906308B1Feb 27, 2018
Methods for compensation of cross-polarization modulation (XPolM) impairments in coherent optical communications
MITSUBISHI ELECTRIC RES LABORATORIES INC6 citations73
US9584256B2Feb 28, 2017
Adaptive error correction code for optical super-channels
MITSUBISHI ELECTRIC RES LABORATORIES INC6 citations73
US9473250B2Oct 18, 2016
System and method for recovering carrier phase in optical communications
MITSUBISHI ELECTRIC RES LABORATORIES INC5 citations73
US11650371B2May 16, 2023
Grating coupler and integrated grating coupler system
MITSUBISHI ELECTRIC RES LABORATORIES INC2 citations71
US11079550B2Aug 3, 2021
Grating coupler and integrated grating coupler system
MITSUBISHI ELECTRIC RES LABORATORIES INC4 citations71
US11204467B2Dec 21, 2021
Integrated grating coupler
MITSUBISHI ELECTRIC RES LABORATORIES INC2 citations70
US10921525B2Feb 16, 2021
Grating coupler and integrated grating coupler system
MITSUBISHI ELECTRIC RES LABORATORIES INC5 citations70
US9557485B2Jan 31, 2017
System and method for manipulating polarizations of optical signal
MITSUBISHI ELECTRIC RES LABORATORIES INC2 citations70
US9917712B2Mar 13, 2018
Frequency domain equalizer for optical communications
MITSUBISHI ELECTRIC RES LABORATORIES INC2 citations69
US10962717B2Mar 30, 2021
Integrated grating coupler system
MITSUBISHI ELECTRIC RES LABORATORIES INC2 citations68
US10859769B2Dec 8, 2020
Compact photonic devices
MITSUBISHI ELECTRIC RES LABORATORIES INC3 citations67
US11251896B2Feb 15, 2022
Generative model for inverse design of materials, devices, and structures
MITSUBISHI ELECTRIC RES LABORATORIES INC0 citations61
US10838282B2Nov 17, 2020
Optical ring circuit with electrical filter
MITSUBISHI ELECTRIC RES LABORATORIES INC0 citations52
US9749089B2Aug 29, 2017
Fast log-likelihood ratio (LLR) computation for decoding high-order and high-dimensional modulation schemes
MITSUBISHI ELECTRIC RES LABORATORIES INC1 citations52
US10996400B2May 4, 2021
Optical waveguide interferometer
MITSUBISHI ELECTRIC RES LABORATORIES INC0 citations51
MITSUBISHI ELECTRIC CORP
5 patentsUS4847844AJul 11, 1989
Surface-emitting semiconductor laser device
MITSUBISHI ELECTRIC CORP35 citations92
US4817110AMar 28, 1989
Semiconductor laser device
MITSUBISHI ELECTRIC CORP41 citations91
US4999688AMar 12, 1991
Optical logic element with short switching time
MITSUBISHI ELECTRIC CORP14 citations74
US4888783ADec 19, 1989
Semiconductor laser device
MITSUBISHI ELECTRIC CORP12 citations71
US5644681AJul 1, 1997
Learning method for neural network having discrete interconnection strengths
MITSUBISHI ELECTRIC CORP6 citations61
MITSUBISHI ELECTRIC RES LAB
3 patentsUS9077508B2Jul 7, 2015
Adaptively coding and modulating signals transmitted via nonlinear channels
MITSUBISHI ELECTRIC RES LAB8 citations84
US9097852B2Aug 4, 2015
Multi-mode interference device
MITSUBISHI ELECTRIC RES LAB4 citations73
US9116298B2Aug 25, 2015
Multi-mode interference device
MITSUBISHI ELECTRIC RES LAB4 citations70
KOJIMA KEISUKE
3 patentsUS9128242B2Sep 8, 2015
Mode-evolution compound converter
KOJIMA KEISUKE11 citations82
US8942517B2Jan 27, 2015
Multi-mode interference manipulator
KOJIMA KEISUKE2 citations61
US8722562B2May 13, 2014
Metal fine particle dispersant containing branched polymer compound having ammonium group
KOJIMA KEISUKE3 citations60
TRIQUINT TECHNOLOGY HOLDING CO
1 patentBASF NOF COATINGS CO LTD
1 patentLSI CORP
1 patentOSAKA ORGANIC CHEMICAL IND LTD
1 patentKONDO MASUO
1 patentZEON CORP
1 patentTAIHEIYO KOGYO KK
1 patentAGERE SYSTEMS INC
1 patentHONDA MOTOR CO LTD
1 patentNIPPON PAINT CO LTD
1 patentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD
1 patentAT & T CORP
1 patentNISSAN CHEMICAL IND LTD
1 patentShowing the top 50 of 69 patents by PatentIndex Score.