Inventor · disambiguated record
Takafumi Koshinaka
Also filed as: KOSHINAKA TAKAFUMI
52 granted patents·23 pending applications·450 citations·filing 1998–2024
97Inventor score
Top patents by PatentIndex Score
75 records- 0197US8595004B2Pronunciation variation rule extraction apparatus, pronunciation variation rule extraction method, and pronunciation variation rule extraction programKOSHINAKA TAKAFUMI·Filed 2008·Granted Nov 26, 2013·357 cites·16 claims
- 0281US10867019B2Personal authentication device, personal authentication method, and personal authentication program using acoustic signal propagationNEC CORP·Filed 2016·Granted Dec 15, 2020·6 cites·11 claims
- 0380US12248548B2Detection of attachment problem of apparatus being worn by userNEC CORP·Filed 2023·Granted Mar 11, 2025·0 cites·9 claims
- 0480US12248547B2Detection of attachment problem of apparatus being worn by userNEC CORP·Filed 2023·Granted Mar 11, 2025·0 cites·9 claims
- 0580US12248550B2Detection of attachment problem of apparatus being worn by userNEC CORP·Filed 2023·Granted Mar 11, 2025·0 cites·9 claims
- 0678US11977617B2Detection of attachment problem of apparatus being worn by userNEC CORP·Filed 2022·Granted May 7, 2024·0 cites·9 claims
- 0777US8630853B2Speech classification apparatus, speech classification method, and speech classification programKOSHINAKA TAKAFUMI·Filed 2008·Granted Jan 14, 2014·10 cites·26 claims
- 0876US12216752B2Personal authentication device based on echo sounds, personal authentication method, and recording mediumNEC CORP·Filed 2024·Granted Feb 4, 2025·0 cites·3 claims
- 0975US12189745B2Acoustic personal authentication device, personal authentication method, and recording mediumNEC CORP·Filed 2023·Granted Jan 7, 2025·0 cites·9 claims
- 1075US11798564B2Spoofing detection apparatus, spoofing detection method, and computer-readable storage mediumNEC CORP·Filed 2019·Granted Oct 24, 2023·3 cites·18 claims
- 1175US8719021B2Speech recognition dictionary compilation assisting system, speech recognition dictionary compilation assisting method and speech recognition dictionary compilation assisting programKOSHINAKA TAKAFUMI·Filed 2007·Granted May 6, 2014·9 cites·24 claims
- 1274US11250860B2Speaker recognition based on signal segments weighted by qualityNEC CORP·Filed 2017·Granted Feb 15, 2022·2 cites·10 claims
- 1373US8422787B2Apparatus, method and program for text segmentationTERAO MAKOTO·Filed 2008·Granted Apr 16, 2013·7 cites·32 claims
- 1472US8788266B2Language model creation device, language model creation method, and computer-readable storage mediumKITADE TASUKU·Filed 2010·Granted Jul 22, 2014·7 cites·25 claims
- 1571US11580967B2Speech feature extraction apparatus, speech feature extraction method, and computer-readable storage mediumNEC CORP·Filed 2018·Granted Feb 14, 2023·2 cites·10 claims
- 1670US9946921B2Monitoring device, monitoring method and monitoring programNEC CORP·Filed 2014·Granted Apr 17, 2018·2 cites·17 claims
- 1769US11817103B2Pattern recognition apparatus, pattern recognition method, and storage mediumNEC CORP·Filed 2017·Granted Nov 14, 2023·2 cites·15 claims
- 1869US2022382846A1Personal authentication device, personal authentication method, and recording mediumNEC CORP·Filed 2022·Application pending·0 cites
- 1967US11928198B2Authentication device and authentication methodNEC CORP·Filed 2021·Granted Mar 12, 2024·0 cites·11 claims
- 2067US11837236B2Speaker recognition based on signal segments weighted by qualityNEC CORP·Filed 2021·Granted Dec 5, 2023·0 cites·13 claims
- 2165US9761248B2Action analysis device, action analysis method, and action analysis programNEC CORP·Filed 2014·Granted Sep 12, 2017·1 cites·11 claims
- 2264US12067098B2Personal authentication device, personal authentication method, and recording mediumNEC CORP·Filed 2023·Granted Aug 20, 2024·0 cites·10 claims
- 2364US6671417B1Character recognition systemNEC CORP·Filed 2000·Granted Dec 30, 2003·19 cites·38 claims
- 2463US8140530B2Similarity calculation device and information search deviceTERAO MAKOTO·Filed 2007·Granted Mar 20, 2012·3 cites·31 claims
- 2562US11039236B2Ear pad and earphone using the sameNEC PLATFORMS LTD·Filed 2017·Granted Jun 15, 2021·1 cites·4 claims
- 2662US8954327B2Voice data analyzing device, voice data analyzing method, and voice data analyzing programKOSHINAKA TAKAFUMI·Filed 2010·Granted Feb 10, 2015·2 cites·15 claims
- 2760US10490194B2Speech processing apparatus, speech processing method and computer-readable mediumNEC CORP·Filed 2015·Granted Nov 26, 2019·1 cites·21 claims
- 2859US10614343B2Pattern recognition apparatus, method, and program using domain adaptationNEC CORP·Filed 2015·Granted Apr 7, 2020·1 cites·8 claims
- 2958US8751227B2Acoustic model learning device and speech recognition deviceKOSHINAKA TAKAFUMI·Filed 2009·Granted Jun 10, 2014·2 cites·20 claims
- 3058US2021201918A1Biometric authentication device, biometric authentication method, and recording mediumNEC CORP·Filed 2019·Application pending·0 cites
- 3157US11537695B2Detection of attachment problem of apparatus being worn by userNEC CORP·Filed 2017·Granted Dec 27, 2022·0 cites·18 claims
- 3256US11074329B2Authentication device and authentication methodNEC CORP·Filed 2017·Granted Jul 27, 2021·0 cites·11 claims
- 3355US11734399B2Acoustic personal authentication device, personal authentication method, and recording mediumNEC CORP·Filed 2017·Granted Aug 22, 2023·0 cites·16 claims
- 3455US2022130397A1Speaker recognition system and method of using the sameNEC CORP·Filed 2020·Application pending·0 cites
- 3554US10803875B2Speaker recognition system and method of using the sameNEC CORP·Filed 2019·Granted Oct 13, 2020·0 cites·20 claims
- 3653US11842741B2Signal processing system, signal processing device, signal processing method, and recording mediumNEC CORP·Filed 2019·Granted Dec 12, 2023·0 cites·7 claims
- 3752US2019213313A1Personal authentication device, personal authentication method, and recording mediumNEC CORP·Filed 2017·Application pending·0 cites
- 3851US12051424B2Audio processing apparatus, audio processing method, and computer-readable recording mediumNEC CORP·Filed 2018·Granted Jul 30, 2024·0 cites·19 claims
- 3950US12334080B2Neural network-based signal processing apparatus, neural network-based signal processing method, and computer-readable storage mediumNEC CORP·Filed 2019·Granted Jun 17, 2025·0 cites·12 claims
- 4050US12175997B2Information processing device, wearable device, information processing method, and storage mediumNEC CORP·Filed 2020·Granted Dec 24, 2024·0 cites·14 claims
- 4150US11586716B2Personal authentication device, personal authentication method, and recording mediumNEC CORP·Filed 2017·Granted Feb 21, 2023·0 cites·16 claims
- 4249US8577679B2Symbol insertion apparatus and symbol insertion methodKITADE TASUKU·Filed 2009·Granted Nov 5, 2013·1 cites·26 claims
- 4347US12499896B2Learning device, method, and programNEC CORP·Filed 2020·Granted Dec 16, 2025·0 cites·5 claims
- 4447US12094450B2Speech processing device, speech processing method, and non-transitory computer readable medium storing programNEC CORP·Filed 2019·Granted Sep 17, 2024·0 cites·10 claims
- 4547US10249306B2Speaker identification device, speaker identification method, and recording mediumNEC CORP·Filed 2014·Granted Apr 2, 2019·0 cites·7 claims
- 4647US2022383113A1Information processing device, information processing method, and recording mediumNEC CORP·Filed 2019·Application pending·0 cites
- 4746US12462809B2Voice registration device, control method, program, and storage mediumNEC CORP·Filed 2020·Granted Nov 4, 2025·0 cites·9 claims
- 4845US12412592B2Hyper-parameter optimization system, method, and programNEC CORP·Filed 2020·Granted Sep 9, 2025·0 cites·9 claims
- 4945US8892435B2Text data processing apparatus, text data processing method, and recording medium storing text data processing programKITADE TASUKU·Filed 2009·Granted Nov 18, 2014·0 cites·19 claims
- 5045US2011202487A1Statistical model learning device, statistical model learning method, and programNEC CORP·Filed 2009·Application pending·0 cites
Showing the top 50 of 75 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →