Inventor
KOSHINAKA TAKAFUMI
JP53 patents
⚠️ This page may combine multiple inventors who share the name “KOSHINAKA TAKAFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
39 patentsUS6671417B1Dec 30, 2003
Character recognition system
NEC CORP19 citations84
US6115506ASep 5, 2000
Character recognition method, character recognition apparatus and recording medium on which a character recognition program is recorded
NEC CORP12 citations74
US11250860B2Feb 15, 2022
Speaker recognition based on signal segments weighted by quality
NEC CORP2 citations73
US9946921B2Apr 17, 2018
Monitoring device, monitoring method and monitoring program
NEC CORP2 citations72
US11817103B2Nov 14, 2023
Pattern recognition apparatus, pattern recognition method, and storage medium
NEC CORP2 citations71
US11798564B2Oct 24, 2023
Spoofing detection apparatus, spoofing detection method, and computer-readable storage medium
NEC CORP3 citations70
US11580967B2Feb 14, 2023
Speech feature extraction apparatus, speech feature extraction method, and computer-readable storage medium
NEC CORP2 citations70
US10867019B2Dec 15, 2020
Personal authentication device, personal authentication method, and personal authentication program using acoustic signal propagation
NEC CORP6 citations67
US12051424B2Jul 30, 2024
Audio processing apparatus, audio processing method, and computer-readable recording medium
NEC CORP0 citations63
US11837236B2Dec 5, 2023
Speaker recognition based on signal segments weighted by quality
NEC CORP0 citations63
US10490194B2Nov 26, 2019
Speech processing apparatus, speech processing method and computer-readable medium
NEC CORP1 citations63
US12248548B2Mar 11, 2025
Detection of attachment problem of apparatus being worn by user
NEC CORP0 citations62
US12248547B2Mar 11, 2025
Detection of attachment problem of apparatus being worn by user
NEC CORP0 citations62
US12248550B2Mar 11, 2025
Detection of attachment problem of apparatus being worn by user
NEC CORP0 citations62
US12189745B2Jan 7, 2025
Acoustic personal authentication device, personal authentication method, and recording medium
NEC CORP0 citations62
US12175997B2Dec 24, 2024
Information processing device, wearable device, information processing method, and storage medium
NEC CORP0 citations62
US11977617B2May 7, 2024
Detection of attachment problem of apparatus being worn by user
NEC CORP0 citations62
US11928198B2Mar 12, 2024
Authentication device and authentication method
NEC CORP0 citations62
US11842741B2Dec 12, 2023
Signal processing system, signal processing device, signal processing method, and recording medium
NEC CORP0 citations62
US11734399B2Aug 22, 2023
Acoustic personal authentication device, personal authentication method, and recording medium
NEC CORP0 citations62
US11537695B2Dec 27, 2022
Detection of attachment problem of apparatus being worn by user
NEC CORP0 citations62
US11074329B2Jul 27, 2021
Authentication device and authentication method
NEC CORP0 citations62
US10614343B2Apr 7, 2020
Pattern recognition apparatus, method, and program using domain adaptation
NEC CORP1 citations61
US12067098B2Aug 20, 2024
Personal authentication device, personal authentication method, and recording medium
NEC CORP0 citations57
US11586716B2Feb 21, 2023
Personal authentication device, personal authentication method, and recording medium
NEC CORP0 citations57
US12562170B2Feb 24, 2026
Biometric authentication device, biometric authentication method, and recording medium
NEC CORP0 citations52
US12462809B2Nov 4, 2025
Voice registration device, control method, program, and storage medium
NEC CORP0 citations52
US12094450B2Sep 17, 2024
Speech processing device, speech processing method, and non-transitory computer readable medium storing program
NEC CORP0 citations52
US11437044B2Sep 6, 2022
Information processing apparatus, control method, and program
NEC CORP0 citations52
US10249306B2Apr 2, 2019
Speaker identification device, speaker identification method, and recording medium
NEC CORP0 citations52
US12216752B2Feb 4, 2025
Personal authentication device based on echo sounds, personal authentication method, and recording medium
NEC CORP0 citations51
US10803875B2Oct 13, 2020
Speaker recognition system and method of using the same
NEC CORP0 citations51
US9761248B2Sep 12, 2017
Action analysis device, action analysis method, and action analysis program
NEC CORP1 citations51
US12412592B2Sep 9, 2025
Hyper-parameter optimization system, method, and program
NEC CORP0 citations50
US11600273B2Mar 7, 2023
Speech processing apparatus, method, and program
NEC CORP0 citations50
US11403545B2Aug 2, 2022
Pattern recognition apparatus, method, and program
NEC CORP0 citations50
US12499896B2Dec 16, 2025
Learning device, method, and program
NEC CORP0 citations49
US12334080B2Jun 17, 2025
Neural network-based signal processing apparatus, neural network-based signal processing method, and computer-readable storage medium
NEC CORP0 citations49
US11900949B2Feb 13, 2024
Signal extraction system, signal extraction learning method, and signal extraction learning program
NEC CORP0 citations47
KOSHINAKA TAKAFUMI
5 patentsUS8595004B2Nov 26, 2013
Pronunciation variation rule extraction apparatus, pronunciation variation rule extraction method, and pronunciation variation rule extraction program
KOSHINAKA TAKAFUMI357 citations98
US8719021B2May 6, 2014
Speech recognition dictionary compilation assisting system, speech recognition dictionary compilation assisting method and speech recognition dictionary compilation assisting program
KOSHINAKA TAKAFUMI9 citations84
US8630853B2Jan 14, 2014
Speech classification apparatus, speech classification method, and speech classification program
KOSHINAKA TAKAFUMI10 citations84
US8954327B2Feb 10, 2015
Voice data analyzing device, voice data analyzing method, and voice data analyzing program
KOSHINAKA TAKAFUMI2 citations62
US8751227B2Jun 10, 2014
Acoustic model learning device and speech recognition device
KOSHINAKA TAKAFUMI2 citations62
TERAO MAKOTO
3 patentsUS8422787B2Apr 16, 2013
Apparatus, method and program for text segmentation
TERAO MAKOTO7 citations82
US8140530B2Mar 20, 2012
Similarity calculation device and information search device
TERAO MAKOTO3 citations61
US9053751B2Jun 9, 2015
Sound and image segment sorting device and method
TERAO MAKOTO0 citations40
KITADE TASUKU
2 patentsNEC PLATFORMS LTD
1 patentShowing the top 50 of 53 patents by PatentIndex Score.