Inventor · disambiguated record
Masanori Tsujikawa
Also filed as: TSUJIKAWA MASANORI
29 granted patents·41 pending applications·44 citations·filing 2006–2025
94Inventor score
Top patents by PatentIndex Score
70 records- 0180US12262996B2Information processing device, control method, and storage mediumNEC CORP·Filed 2024·Granted Apr 1, 2025·0 cites·11 claims
- 0279US2024055091A1Method for calculating a degree of fatigueNEC CORP·Filed 2023·Application pending·0 cites
- 0379US2024339188A1Method for calculating a degree of fatigueNEC CORP·Filed 2023·Application pending·0 cites
- 0479US2024013877A1Method for calculating a degree of fatigueNEC CORP·Filed 2023·Application pending·0 cites
- 0577US7925504B2System, method, device, and program for removing one or more signals incoming from one or more directionsNEC CORP·Filed 2006·Granted Apr 12, 2011·8 cites·30 claims
- 0677US2024078923A1Test familiar determination device, test familiar determination method and storage mediumNEC CORP·Filed 2023·Application pending·0 cites
- 0777US2024071240A1Test familiar determination device, test familiar determination method and storage mediumNEC CORP·Filed 2023·Application pending·0 cites
- 0877US2024071241A1Test familiar determination device, test familiar determination method and storage mediumNEC CORP·Filed 2023·Application pending·0 cites
- 0975US2023401967A1Determination device, determination method and storage mediumNEC CORP·Filed 2023·Application pending·0 cites
- 1074US2024032852A1Cognitive function estimation device, cognitive function estimation method, and storage mediumNEC CORP·Filed 2023·Application pending·0 cites
- 1174US2024032851A1Cognitive function estimation device, cognitive function estimation method, and storage mediumNEC CORP·Filed 2023·Application pending·0 cites
- 1274US2024065599A1Cognitive function estimation device, cognitive function estimation method, and storage mediumNEC CORP·Filed 2023·Application pending·0 cites
- 1371US2025176883A1Information processing device, control method, and storage mediumNEC CORP·Filed 2025·Application pending·0 cites
- 1471US2025176884A1Information processing device, control method, and storage mediumNEC CORP·Filed 2025·Application pending·0 cites
- 1570US9355648B2Voice input/output device, method and programme for preventing howlingTSUJIKAWA MASANORI·Filed 2012·Granted May 31, 2016·5 cites·20 claims
- 1669US12228295B2Area-specific environment management system for providing environment in which arousal level is adjusted, method, and recording medium thereforNEC CORP·Filed 2017·Granted Feb 18, 2025·1 cites·16 claims
- 1769US8954323B2Method for processing multichannel acoustic signal, system thereof, and programTSUJIKAWA MASANORI·Filed 2010·Granted Feb 10, 2015·5 cites·33 claims
- 1867US2023386630A1Information processing device, control method, and storage mediumNEC CORP·Filed 2020·Application pending·0 cites
- 1966US9905243B2Speech processing system, speech processing method, speech processing program, vehicle including speech processing system on board, and microphone placing methodNEC CORP·Filed 2014·Granted Feb 27, 2018·3 cites·15 claims
- 2066US8589152B2Device, method and program for voice detection and recording mediumEMORI TADASHI·Filed 2009·Granted Nov 19, 2013·5 cites·20 claims
- 2166US8401844B2Gain control system, gain control method, and gain control programARAKAWA TAKAYUKI·Filed 2007·Granted Mar 19, 2013·5 cites·20 claims
- 2265US11986301B2Information processing device, control method, and storage mediumNEC CORP·Filed 2020·Granted May 21, 2024·0 cites·10 claims
- 2364US2024138750A1Cognitive function estimation device, cognitive function estimation method, and storage mediumNEC CORP·Filed 2021·Application pending·0 cites
- 2461US8812313B2Voice activity detector, voice activity detection program, and parameter adjusting methodARAKAWA TAKAYUKI·Filed 2009·Granted Aug 19, 2014·3 cites·19 claims
- 2561US2023376845A1Information processing apparatus, information processing method, and storage mediumNEC CORP·Filed 2023·Application pending·0 cites
- 2660US8612225B2Voice recognition device, voice recognition method, and voice recognition programARAKAWA TAKAYUKI·Filed 2008·Granted Dec 17, 2013·3 cites·22 claims
- 2758US2023410048A1Information processing device, information processing method, and recording mediumNEC CORP·Filed 2023·Application pending·0 cites
- 2858US2024186002A1Information processing apparatus, feature quantity extraction method, training data generation method, estimation model generation method, stress level estimation method, and storage mediumNEC CORP·Filed 2021·Application pending·0 cites
- 2958US2025037873A1Stress estimation methodNEC CORP·Filed 2021·Application pending·0 cites
- 3057US9613631B2Noise suppression system, method and programARAKAWA TAKAYUKI·Filed 2006·Granted Apr 4, 2017·2 cites·27 claims
- 3157US8938389B2Voice activity detector, voice activity detection program, and parameter adjusting methodARAKAWA TAKAYUKI·Filed 2009·Granted Jan 20, 2015·2 cites·30 claims
- 3256US2025037863A1Information processing methodNEC CORP·Filed 2021·Application pending·0 cites
- 3355US2023255531A1Stress coping management apparatus, stress coping management method, and computer-readable recording mediumNEC CORP·Filed 2020·Application pending·0 cites
- 3454US9009035B2Method for processing multichannel acoustic signal, system therefor, and programTSUJIKAWA MASANORI·Filed 2010·Granted Apr 14, 2015·1 cites·21 claims
- 3553US12507956B2Drowsiness estimation information correction device, drowsiness estimation device, drowsiness estimation information correction method, drowsiness estimation method, and recording mediumNEC CORP·Filed 2020·Granted Dec 30, 2025·0 cites·5 claims
- 3653US8694308B2System, method and program for voice detectionARAKAWA TAKAYUKI·Filed 2008·Granted Apr 8, 2014·1 cites·36 claims
- 3753US2025072799A1Mental state estimation device, mental state estimation method, and storage mediumNEC CORP·Filed 2023·Application pending·0 cites
- 3852US11992317B2Alertness estimation apparatus, alertness estimation method, and computer- readable recording mediumNEC CORP·Filed 2019·Granted May 28, 2024·0 cites·14 claims
- 3952US10026414B2Speech processing system, vehicle, speech processing unit, steering wheel unit, speech processing method, and speech processing programNEC CORP·Filed 2014·Granted Jul 17, 2018·0 cites·3 claims
- 4052US8842843B2Signal correction apparatus equipped with correction function estimation unitEMORI TADASHI·Filed 2009·Granted Sep 23, 2014·0 cites·12 claims
- 4152US2024242243A1Value determination device based on user mental state, value determination method based on user mental state, and storage mediumNEC CORP·Filed 2021·Application pending·0 cites
- 4252US2024104430A1Information processing apparatus, feature quantity selection method, training data generation method, estimation model generation method, stress level estimation method, and storage mediumNEC CORP·Filed 2021·Application pending·0 cites
- 4351US2025069372A1Stress estimation device, stress estimation method, and storage mediumNEC CORP·Filed 2022·Application pending·0 cites
- 4449US2024268769A1Fatigue estimation device, fatigue estimation method, and storage mediumNEC CORP·Filed 2021·Application pending·0 cites
- 4549US2025037875A1Calculation methodNEC CORP·Filed 2021·Application pending·0 cites
- 4648US9847091B2Speech processing apparatus, speech processing method, speech processing program, method of attaching speech processing apparatus, ceiling member, and vehicleNEC CORP·Filed 2014·Granted Dec 19, 2017·0 cites·8 claims
- 4748US2024252084A1Stress release action detection device, stress release action detection method, and storage mediumNEC CORP·Filed 2021·Application pending·0 cites
- 4848US2024185124A1Learning device, stress estimation device, learning method, stress estimation method, and storage mediumNEC CORP·Filed 2021·Application pending·0 cites
- 4947US8856001B2Speech sound detection apparatusEMORI TADASHI·Filed 2009·Granted Oct 7, 2014·0 cites·20 claims
- 5047US2024170155A1Stress estimation device, stress estimation method, and storage mediumNEC CORP·Filed 2021·Application pending·0 cites
Showing the top 50 of 70 patent records by PatentIndex Score.
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