Inventor · disambiguated record
Osamu Ichikawa
Also filed as: ICHIKAWA OSAMU
86 granted patents·11 pending applications·1,243 citations·filing 1980–2022
99Inventor score
Files withIBM30MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14FUKUDA TAKASHI7ICHIKAWA OSAMU6NUANCE COMMUNICATIONS INC6
Top patents by PatentIndex Score
97 records- 0199US4445132ALED Module for a flat panel display unitTOKYO SHIBAURA ELECTRIC CO·Filed 1981·Granted Apr 24, 1984·267 cites·13 claims
- 0294US6514921B1Cleaning agentWAKO PURE CHEM IND LTD·Filed 2000·Granted Feb 4, 2003·77 cites·17 claims
- 0392US9640197B1Extraction of target speechesIBM·Filed 2016·Granted May 2, 2017·11 cites·20 claims
- 0491US4701015AWaterproof optical fiber cable and method of the production thereofSUMITOMO ELECTRIC INDUSTRIES·Filed 1985·Granted Oct 20, 1987·70 cites·5 claims
- 0590US7481412B2Solenoid-operated cutoff valve for use with fuel cellsKEIHIN CORP·Filed 2005·Granted Jan 27, 2009·22 cites·11 claims
- 0689US7720679B2Speech recognition apparatus, speech recognition apparatus and program thereofNUANCE COMMUNICATIONS INC·Filed 2008·Granted May 18, 2010·22 cites·21 claims
- 0789US6734549B2Semiconductor device having a device for testing the semiconductorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 11, 2004·39 cites·16 claims
- 0889US4322735ADisplay deviceTOKYO SHIBAURA ELECTRIC CO·Filed 1980·Granted Mar 30, 1982·69 cites·8 claims
- 0988US6410494B2Cleaning agentWAKO PURE CHEM IND LTD·Filed 2001·Granted Jun 25, 2002·42 cites·22 claims
- 1087US6917215B2Semiconductor integrated circuit and memory test methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jul 12, 2005·33 cites·12 claims
- 1187US6143705ACleaning agentWAKO PURE CHEM IND LTD·Filed 1997·Granted Nov 7, 2000·75 cites·2 claims
- 1283US8987782B2Semiconductor structure for forming a combination of different types of devicesICHIKAWA OSAMU·Filed 2011·Granted Mar 24, 2015·7 cites·12 claims
- 1383US7698133B2Noise reduction deviceIBM·Filed 2005·Granted Apr 13, 2010·13 cites·8 claims
- 1482US8872231B2Semiconductor wafer, method of producing semiconductor wafer, and electronic deviceICHIKAWA OSAMU·Filed 2011·Granted Oct 28, 2014·5 cites·17 claims
- 1582US7478041B2Speech recognition apparatus, speech recognition apparatus and program thereofIBM·Filed 2003·Granted Jan 13, 2009·36 cites·3 claims
- 1680US10062378B1Sound identification utilizing periodic indicationsIBM·Filed 2017·Granted Aug 28, 2018·3 cites·25 claims
- 1779US8712770B2Method, preprocessor, speech recognition system, and program product for extracting target speech by removing noiseFUKUDA TAKASHI·Filed 2008·Granted Apr 29, 2014·11 cites·16 claims
- 1879US7856353B2Method for processing speech signal data with reverberation filteringNUANCE COMMUNICATIONS INC·Filed 2007·Granted Dec 21, 2010·12 cites·13 claims
- 1978US10726828B2Generation of voice data as data augmentation for acoustic model trainingIBM·Filed 2017·Granted Jul 28, 2020·3 cites·15 claims
- 2078US5028916AActive matrix display deviceTOSHIBA KK·Filed 1990·Granted Jul 2, 1991·58 cites·13 claims
- 2177US8431459B2Semiconductor wafer, semiconductor device, and method of manufacturing a semiconductor deviceTAKENAKA MITSURU·Filed 2009·Granted Apr 30, 2013·9 cites·5 claims
- 2277US8241806B2Fuel cell systemICHIKAWA OSAMU·Filed 2005·Granted Aug 14, 2012·4 cites·9 claims
- 2377US7797154B2Signal noise reductionIBM·Filed 2008·Granted Sep 14, 2010·8 cites·8 claims
- 2476US8762137B2Target voice extraction method, apparatus and program productFUKUDA TAKASHI·Filed 2010·Granted Jun 24, 2014·6 cites·19 claims
- 2576US7537626B2Gas-liquid separator for a fuel cell system onboard a vehicleHONDA MOTOR CO LTD·Filed 2005·Granted May 26, 2009·3 cites·9 claims
- 2675US7032196B2Semiconductor wiring substrate, semiconductor device, method for testing semiconductor device, and method for mounting semiconductor deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Apr 18, 2006·15 cites·6 claims
- 2774US7155643B2Semiconductor integrated circuit and test method thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Dec 26, 2006·21 cites·11 claims
- 2873US7590526B2Method for processing speech signal data and finding a filter coefficientNUANCE COMMUNICATIONS INC·Filed 2007·Granted Sep 15, 2009·7 cites·7 claims
- 2972US10726326B2Learning of neural networkIBM·Filed 2016·Granted Jul 28, 2020·2 cites·20 claims
- 3072US9734821B2Testing words in a pronunciation lexiconIBM·Filed 2015·Granted Aug 15, 2017·2 cites·20 claims
- 3172US7079291B2Method for hard-copying web pages, method for printing display screens, system for hard-copying web pages, and internet connection device equipped with current-position detection capabilitiesIBM·Filed 2001·Granted Jul 18, 2006·10 cites·13 claims
- 3272US5948082AComputer system having a data buffering system which includes a main ring buffer comprised of a plurality of sub-ring buffers connected in a ringIBM·Filed 1997·Granted Sep 7, 1999·65 cites·16 claims
- 3370US9022588B2Mirror surface angle adjusting deviceCHINO MASARU·Filed 2010·Granted May 5, 2015·7 cites·8 claims
- 3470US8812312B2System, method and program for speech processingFUKUDA TAKASHI·Filed 2008·Granted Aug 19, 2014·6 cites·9 claims
- 3570US8696342B2Waveform monitor apparatus of injection molding machineKASUGA NOBUKAZU·Filed 2012·Granted Apr 15, 2014·3 cites·14 claims
- 3670US6979091B2Door mirror set plateMITSUBA CORP·Filed 2003·Granted Dec 27, 2005·17 cites·2 claims
- 3769US4647927ADisplay deviceTOKYO SHIBAURA ELECTRIC CO·Filed 1985·Granted Mar 3, 1987·27 cites·5 claims
- 3867US11416741B2Teacher and student learning for constructing mixed-domain modelIBM·Filed 2018·Granted Aug 16, 2022·1 cites·24 claims
- 3967US10839791B2Neural network-based acoustic model with softening target-layerIBM·Filed 2018·Granted Nov 17, 2020·1 cites·18 claims
- 4067US9190072B2Local peak weighted-minimum mean square error (LPW-MMSE) estimation for robust speechIBM·Filed 2013·Granted Nov 17, 2015·3 cites·4 claims
- 4167US9087513B2Noise reduction method, program product, and apparatusIBM·Filed 2013·Granted Jul 21, 2015·3 cites·9 claims
- 4267US7890321B2Noise reduction device, program and methodIBM·Filed 2008·Granted Feb 15, 2011·4 cites·20 claims
- 4367US7747443B2Apparatus, method, and program for supporting speech interface designNUANCE COMMUNICATIONS INC·Filed 2007·Granted Jun 29, 2010·4 cites·6 claims
- 4466US8566084B2Speech processing based on time series of maximum values of cross-power spectrum phase between two consecutive speech framesICHIKAWA OSAMU·Filed 2011·Granted Oct 22, 2013·3 cites·15 claims
- 4566US7197725B2Semiconductor integrated circuit and testing method for the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Mar 27, 2007·13 cites·19 claims
- 4665US6999823B2Power shut-off method for injection molding machineNISSEI PLASTICS IND CO·Filed 2003·Granted Feb 14, 2006·10 cites·12 claims
- 4764US8930185B2Speech feature extraction apparatus, speech feature extraction method, and speech feature extraction programFUKUDA TAKASHI·Filed 2010·Granted Jan 6, 2015·2 cites·16 claims
- 4864US7295028B2Semiconductor integrated circuit and memory test methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Nov 13, 2007·5 cites·32 claims
- 4963US10217456B2Method, apparatus, and program for generating training speech data for target domainIBM·Filed 2014·Granted Feb 26, 2019·2 cites·20 claims
- 5063US9184240B2Method of producing semiconductor wafer, and semiconductor waferSUMITOMO CHEMICAL CO·Filed 2013·Granted Nov 10, 2015·1 cites·8 claims
Showing the top 50 of 97 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →