Inventor · disambiguated record
Akihiko Sugiyama
Also filed as: SUGIYAMA AKIHIKO
113 granted patents·17 pending applications·1,483 citations·filing 1984–2023
99Inventor score
Top patents by PatentIndex Score
130 records- 0196US5517435AMethod of identifying an unknown system with a band-splitting adaptive filter and a device thereofNEC CORP·Filed 1994·Granted May 14, 1996·109 cites·29 claims
- 0295US5166686AVariable length block coding with changing characteristics of input samplesNEC CORP·Filed 1990·Granted Nov 24, 1992·112 cites·42 claims
- 0393US7300046B2Sheet processing apparatus and image forming apparatus having the sameCANON FINETECH INC·Filed 2005·Granted Nov 27, 2007·20 cites·16 claims
- 0493US4495779AAir conditionerTOKYO SHIBAURA ELECTRIC CO·Filed 1984·Granted Jan 29, 1985·78 cites·5 claims
- 0592US7566051B2Sheet post-processing unit and image forming apparatusCANON FINETECH INC·Filed 2008·Granted Jul 28, 2009·17 cites·19 claims
- 0691US5329472AMethod and apparatus for controlling coefficients of adaptive filterNEC CORP·Filed 1993·Granted Jul 12, 1994·50 cites·19 claims
- 0790US7392983B2Sheet post-processing unit and image forming apparatusCANON FINETECH INC·Filed 2004·Granted Jul 1, 2008·35 cites·26 claims
- 0888US9805734B2Signal processing device, signal processing method and signal processing program for noise cancellationSUGIYAMA AKIHIKO·Filed 2011·Granted Oct 31, 2017·11 cites·11 claims
- 0988US8473099B2Information processing system, method of processing information, and program for processing informationSUGIYAMA AKIHIKO·Filed 2008·Granted Jun 25, 2013·19 cites·8 claims
- 1088US5245561AAdaptive filter capable of quickly identifying an unknown systemNEC CORP·Filed 1991·Granted Sep 14, 1993·49 cites·17 claims
- 1188US4896514AAir-conditioning apparatusTOSHIBA KK·Filed 1988·Granted Jan 30, 1990·64 cites·17 claims
- 1285US9301048B2Signal processing method, signal processing device, and signal processing programNEC CORP·Filed 2014·Granted Mar 29, 2016·6 cites·11 claims
- 1385US5455819AMethod and apparatus capable of quickly identifying an unknown system even on occurrence of a plurality of dispersive portionsNEC CORP·Filed 1994·Granted Oct 3, 1995·83 cites·29 claims
- 1483US10300558B2Laser processing machine and laser cutting methodAMADA HOLDINGS CO LTD·Filed 2016·Granted May 28, 2019·2 cites·5 claims
- 1583US4730343ADecision feedback equalizer with a pattern detectorNEC CORP·Filed 1986·Granted Mar 8, 1988·76 cites·7 claims
- 1682US7871066B2Sheet post-processing unit and image forming apparatusCANON FINETECH INC·Filed 2009·Granted Jan 18, 2011·7 cites·9 claims
- 1782US5396554AMulti-channel echo canceling method and apparatusNEC CORP·Filed 1992·Granted Mar 7, 1995·88 cites·22 claims
- 1880US9821409B2Laser cutting methodSUGIYAMA AKIHIKO·Filed 2012·Granted Nov 21, 2017·3 cites·8 claims
- 1980US9728178B2Particular signal cancel method, particular signal cancel device, adaptive filter coefficient update method, adaptive filter coefficient update device, and computer programNEC CORP·Filed 2014·Granted Aug 8, 2017·4 cites·6 claims
- 2080US7212321B2Simple and compact automatic document feed device containing a single adjusting unitNISCA CORP·Filed 2001·Granted May 1, 2007·23 cites·13 claims
- 2180US6396872B1Unknown system identification method by subband adaptive filters and device thereofNEC CORP·Filed 1999·Granted May 28, 2002·36 cites·34 claims
- 2279US8050717B2Signal processing system and method for calibrating channel signals supplied from an array of sensors having different operating characteristicsNEC CORP·Filed 2006·Granted Nov 1, 2011·7 cites·28 claims
- 2378US8073147B2Dereverberation method, apparatus, and program for dereverberationSUGIYAMA AKIHIKO·Filed 2006·Granted Dec 6, 2011·9 cites·14 claims
- 2477US11743662B2Voice input/output apparatus, hearing aid, voice input/output method, and voice input/output programNEC CORP·Filed 2019·Granted Aug 29, 2023·2 cites·15 claims
- 2576US8433580B2Information processing system, which adds information to translation and converts it to voice signal, and method of processing information for the sameSUGIYAMA AKIHIKO·Filed 2004·Granted Apr 30, 2013·19 cites·10 claims
- 2675US10453471B2Signal processing method, signal processing device, and signal processing programNEC CORP·Filed 2016·Granted Oct 22, 2019·2 cites·20 claims
- 2775US6577731B1Method and apparatus of cancelling multi-channel echoesNEC CORP·Filed 1999·Granted Jun 10, 2003·28 cites·66 claims
- 2875US5547344AFluid compressor with selector valveTOSHIBA KK·Filed 1994·Granted Aug 20, 1996·44 cites·25 claims
- 2975US5475632AMethod of and apparatus for identifying unknown system using adaptive filterNEC CORP·Filed 1992·Granted Dec 12, 1995·26 cites·93 claims
- 3074US7944775B2Adaptive array control device, method and program, and adaptive array processing device, method and programNEC CORP·Filed 2007·Granted May 17, 2011·10 cites·44 claims
- 3173US10576584B2Laser processing machine and laser processing methodAMADA HOLDINGS CO LTD·Filed 2017·Granted Mar 3, 2020·1 cites·10 claims
- 3273US8223989B2Signal processing system and method for calibrating channel signals supplied from an array of sensors having different operating characteristicsSUGIYAMA AKIHIKO·Filed 2011·Granted Jul 17, 2012·3 cites·54 claims
- 3369US8761385B2Signal processing method, signal processing device, and signal processing programSUGIYAMA AKIHIKO·Filed 2005·Granted Jun 24, 2014·4 cites·16 claims
- 3468US10118256B2Sheet metal processing method using laser beams and direct diode laser processing device for carrying it outAMADA HOLDINGS CO LTD·Filed 2015·Granted Nov 6, 2018·1 cites·9 claims
- 3568US6442274B1Method and apparatus of canceling echoes in multi-channelNEC CORP·Filed 1999·Granted Aug 27, 2002·36 cites·15 claims
- 3667US9858946B2Signal processing apparatus, signal processing method, and signal processing programNEC CORP·Filed 2014·Granted Jan 2, 2018·3 cites·7 claims
- 3767US2023353953A1Voice input/output apparatus, hearing aid, voice input/output method, and voice input/output programNEC CORP·Filed 2023·Application pending·0 cites
- 3866US9905243B2Speech 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
- 3966US9362706B2Laser machine and controlling method of laser machineSUGIYAMA AKIHIKO·Filed 2011·Granted Jun 7, 2016·2 cites·10 claims
- 4066US7590528B2Method and apparatus for noise suppressionNEC CORP·Filed 2001·Granted Sep 15, 2009·14 cites·25 claims
- 4166US5235623AAdaptive transform coding by selecting optimum block lengths according to variatons between successive blocksNEC CORP·Filed 1990·Granted Aug 10, 1993·51 cites·53 claims
- 4265USD930057SNozzleAMADA HOLDINGS CO LTD·Filed 2019·Granted Sep 7, 2021·9 cites·1 claims
- 4365US5092396AAir-conditioning systemTOSHIBA KK·Filed 1990·Granted Mar 3, 1992·35 cites·10 claims
- 4465US2024238896A1Laser processing machine and laser processing methodAMADA CO LTD·Filed 2022·Application pending·0 cites
- 4564US11769517B2Signal processing apparatus, signal processing method, and signal processing programNEC CORP·Filed 2018·Granted Sep 26, 2023·1 cites·7 claims
- 4664US2024173802A1Laser processing machine and laser processing methodAMADA CO LTD·Filed 2022·Application pending·0 cites
- 4763US9715885B2Signal processing apparatus, signal processing method, and signal processing programNEC CORP·Filed 2014·Granted Jul 25, 2017·2 cites·30 claims
- 4863US8233636B2Method, apparatus, and computer program for suppressing noiseSUGIYAMA AKIHIKO·Filed 2006·Granted Jul 31, 2012·3 cites·8 claims
- 4963US8106827B2Adaptive array control device, method and program, and adaptive array processing device, method and programSUGIYAMA AKIHIKO·Filed 2007·Granted Jan 31, 2012·2 cites·41 claims
- 5063US8014230B2Adaptive array control device, method and program, and adaptive array processing device, method and program using the sameNEC CORP·Filed 2007·Granted Sep 6, 2011·2 cites·28 claims
Showing the top 50 of 130 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →