Inventor · disambiguated record
Kazuhiko Ozawa
Also filed as: OZAWA KAZUHIKO
15 granted patents·4 pending applications·272 citations·filing 1986–2018
93Inventor score
Top patents by PatentIndex Score
19 records- 0192US7697699B2Method of and apparatus for reducing noiseSONY CORP·Filed 2005·Granted Apr 13, 2010·23 cites·22 claims
- 0291US8547416B2Signal processing apparatus, signal processing method, program, and recording medium for enhancing voiceOZAWA KAZUHIKO·Filed 2006·Granted Oct 1, 2013·21 cites·13 claims
- 0390US4775600AHighly corrosion-resistant surface-treated steel plateNIPPON KOKAN KK·Filed 1986·Granted Oct 4, 1988·62 cites·74 claims
- 0486US5506620ARecording/reproducing apparatus for providing indications of abnormal statesSONY CORP·Filed 1994·Granted Apr 9, 1996·80 cites·4 claims
- 0582US7711557B2Audio signal noise reduction device and methodSONY CORP·Filed 2006·Granted May 4, 2010·12 cites·12 claims
- 0679US8150061B2Sound generating method, sound generating apparatus, sound reproducing method, and sound reproducing apparatusOZAWA KAZUHIKO·Filed 2005·Granted Apr 3, 2012·10 cites·16 claims
- 0770US8411165B2Microphone apparatus, reproducing apparatus, and image taking apparatusOZAWA KAZUHIKO·Filed 2004·Granted Apr 2, 2013·10 cites·14 claims
- 0869US7174023B2Automatic wind noise reduction circuit and automatic wind noise reduction methodSONY CORP·Filed 2003·Granted Feb 6, 2007·14 cites·10 claims
- 0961US8036398B2Circuit and apparatus having a delay unit for reducing periodic noiseSONY CORP·Filed 2006·Granted Oct 11, 2011·4 cites·9 claims
- 1061US7436968B2Adaptive noise reduction method and deviceSONY CORP·Filed 2003·Granted Oct 14, 2008·4 cites·17 claims
- 1161US4970126AHighly corrosion-resistant, multi-layer coated steel sheetsNIPPON KOKAN KK·Filed 1988·Granted Nov 13, 1990·15 cites·16 claims
- 1255US8320583B2Noise reducing device and noise determining methodOZAWA KAZUHIKO·Filed 2010·Granted Nov 27, 2012·1 cites·16 claims
- 1352US5805469ADigital audio signal processing apparatus and method for error concealmentSONY CORP·Filed 1996·Granted Sep 8, 1998·16 cites·22 claims
- 1449US2008044033A1Sound pickup device and sound pickup methodSONY CORP·Filed 2007·Application pending·0 cites
- 1548US11553155B2Communication controller and control method of communication controllerSONY CORP·Filed 2018·Granted Jan 10, 2023·0 cites·14 claims
- 1645US2005063553A1Microphone apparatus, noise reduction method and recording apparatusFiled 2004·Application pending·0 cites
- 1745US2008306733A1Imaging apparatus, voice processing circuit, noise reducing circuit, noise reducing method, and programSONY CORP·Filed 2008·Application pending·0 cites
- 1843US2007058822A1Noise reducing apparatus, method and program and sound pickup apparatus for electronic equipmentSONY CORP·Filed 2006·Application pending·0 cites
- 1937US8331583B2Noise reducing apparatus and noise reducing methodOZAWA KAZUHIKO·Filed 2010·Granted Dec 11, 2012·0 cites·16 claims
Join the waitlist — get patent alerts
Get an alert when Kazuhiko Ozawa files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →