Inventor · disambiguated record
Kazunori Ozawa
Also filed as: OZAWA KAZUNORI
155 granted patents·60 pending applications·3,719 citations·filing 1979–2021
99Inventor score
Top patents by PatentIndex Score
215 records- 0198US5870710AAudio transmission, recording and reproducing systemSONY CORP·Filed 1997·Granted Feb 9, 1999·384 cites·20 claims
- 0294US5208862ASpeech coderNEC CORP·Filed 1991·Granted May 4, 1993·258 cites·9 claims
- 0394US5142584ASpeech coding/decoding method having an excitation signalNEC CORP·Filed 1990·Granted Aug 25, 1992·255 cites·2 claims
- 0493US5271089ASpeech parameter encoding method capable of transmitting a spectrum parameter at a reduced number of bitsNEC CORP·Filed 1991·Granted Dec 14, 1993·99 cites·25 claims
- 0592US7936820B2Moving-picture compression encoding method, apparatus and programNEC CORP·Filed 2005·Granted May 3, 2011·33 cites·12 claims
- 0692US5029211ASpeech analysis and synthesis systemNEC CORP·Filed 1989·Granted Jul 2, 1991·173 cites·3 claims
- 0790US7653251B2Method, apparatus, system, and program for switching image coded dataNEC CORP·Filed 2005·Granted Jan 26, 2010·16 cites·51 claims
- 0889US5774835AMethod and apparatus of postfiltering using a first spectrum parameter of an encoded sound signal and a second spectrum parameter of a lesser degree than the first spectrum parameterNEC CORP·Filed 1995·Granted Jun 30, 1998·166 cites·20 claims
- 0989US4354273AADPCM System for speech or like signalsNIPPON ELECTRIC CO·Filed 1980·Granted Oct 12, 1982·42 cites·9 claims
- 1088US5525890ABattery unit and battery energy billing methodSONY CORP·Filed 1993·Granted Jun 11, 1996·65 cites·17 claims
- 1187US8055974B2Content distribution method, encoding method, reception/reproduction method and apparatus, and programNEC CORP·Filed 2010·Granted Nov 8, 2011·9 cites·10 claims
- 1287US5883609AActive matrix type liquid crystal display with multi-media oriented drivers and driving method for sameNEC CORP·Filed 1995·Granted Mar 16, 1999·106 cites·25 claims
- 1385US6124700ACharging method, charging equipment, and integrated circuitSONY CORP·Filed 1996·Granted Sep 26, 2000·112 cites·65 claims
- 1485US5703071ATropolone derivatives and pharmaceutical composition thereof for preventing and treating ischemic diseasesUPJOHN CO·Filed 1995·Granted Dec 30, 1997·51 cites·6 claims
- 1584US6054826ABackward drive control system for motorcycleDENSO CORP·Filed 1999·Granted Apr 25, 2000·47 cites·12 claims
- 1684US5065547ASurface processing machine for hard disks and the likeSPEEDFAM COMPANY LTD·Filed 1989·Granted Nov 19, 1991·33 cites·25 claims
- 1783US9602621B2Delivery network, server, and delivery methodOZAWA KAZUNORI·Filed 2012·Granted Mar 21, 2017·5 cites·12 claims
- 1883US8281350B2Content distribution system, conversion device, and content distribution method for use thereinOZAWA KAZUNORI·Filed 2008·Granted Oct 2, 2012·7 cites·6 claims
- 1983US5783322ASecondary battery packSONY CORP·Filed 1996·Granted Jul 21, 1998·73 cites·26 claims
- 2082US10535540B2Substrate storing containerMIRAIAL CO LTD·Filed 2015·Granted Jan 14, 2020·4 cites·10 claims
- 2182US9887116B2Substrate storing containerMIRAIAL CO LTD·Filed 2014·Granted Feb 6, 2018·5 cites·4 claims
- 2282US7504179B2Secondary cell module and method of its productionNISSAN MOTOR·Filed 2003·Granted Mar 17, 2009·24 cites·17 claims
- 2381US8891539B2Re-searching reference image for motion vector and converting resolution using image generated by applying motion vector to reference imageOZAWA KAZUNORI·Filed 2009·Granted Nov 18, 2014·6 cites·11 claims
- 2481US8617257B2Device for stacking successive separator and sheet electrodeKADOWAKI MUNEHIRO·Filed 2007·Granted Dec 31, 2013·11 cites·16 claims
- 2581US7667729B2Multi-point conference system and multi-point conference deviceNEC CORP·Filed 2005·Granted Feb 23, 2010·6 cites·19 claims
- 2680US8873545B2Gateway apparatus, system and methodOZAWA KAZUNORI·Filed 2010·Granted Oct 28, 2014·5 cites·11 claims
- 2780US5487128ASpeech parameter coding method and appparatusNEC CORP·Filed 1992·Granted Jan 23, 1996·41 cites·7 claims
- 2877US9871367B2Overcurrent protection circuitANDEN CO LTD·Filed 2016·Granted Jan 16, 2018·2 cites·10 claims
- 2977US5778334ASpeech coders with speech-mode dependent pitch lag code allocation patterns minimizing pitch predictive distortionNEC CORP·Filed 1995·Granted Jul 7, 1998·82 cites·25 claims
- 3076US8255206B2Voice mixing method and multipoint conference server and program using the same methodITO HIRONORI·Filed 2007·Granted Aug 28, 2012·5 cites·19 claims
- 3176US6023672ASpeech coderNEC CORP·Filed 1997·Granted Feb 8, 2000·78 cites·7 claims
- 3275US8681761B2Gateway apparatus, method, and systemOZAWA KAZUNORI·Filed 2010·Granted Mar 25, 2014·4 cites·4 claims
- 3375US7499853B2Speech decoder and code error compensation methodPANASONIC CORP·Filed 2006·Granted Mar 3, 2009·7 cites·6 claims
- 3475US5826226ASpeech coding apparatus having amplitude information set to correspond with position informationNEC CORP·Filed 1996·Granted Oct 20, 1998·75 cites·20 claims
- 3574US9178189B2Sheet-type secondary battery and method of manufacturing sameABE KIYOKO·Filed 2011·Granted Nov 3, 2015·4 cites·12 claims
- 3674US8503538B2Method, apparatus, system, and program for content encoding, content distribution, and content receptionDEI HIROAKI·Filed 2005·Granted Aug 6, 2013·7 cites·9 claims
- 3774US5760570ARechargeable battery apparatusSONY CORP·Filed 1996·Granted Jun 2, 1998·63 cites·20 claims
- 3873US8811416B2Gateway device, mobile terminal, mobile communication method, and programOZAWA KAZUNORI·Filed 2010·Granted Aug 19, 2014·3 cites·19 claims
- 3973US7298295B2Method, apparatus, system, and program for code conversion transmission and code conversion reception of audio dataNEC CORP·Filed 2006·Granted Nov 20, 2007·4 cites·16 claims
- 4071US8315027B2Switch circuit having overcurrent detection functionSUGIMOTO SHIGEKAZU·Filed 2010·Granted Nov 20, 2012·5 cites·4 claims
- 4171US7024354B2Speech decoder capable of decoding background noise signal with high qualityNEC CORP·Filed 2001·Granted Apr 4, 2006·18 cites·14 claims
- 4271US5737484AMultistage low bit-rate CELP speech coder with switching code books depending on degree of pitch periodicityNEC CORP·Filed 1996·Granted Apr 7, 1998·68 cites·1 claims
- 4371US5506361AImidazobenzoquinones and composition for preventing or treating hypertension or congestive heart failure containing the sameUPJOHN CO·Filed 1992·Granted Apr 9, 1996·15 cites·5 claims
- 4471US4821324ALow bit-rate pattern encoding and decoding capable of reducing an information transmission rateNEC CORP·Filed 1985·Granted Apr 11, 1989·51 cites·14 claims
- 4570US4257076AGrooved drum for tape recording and/or reproducing apparatusSONY CORP·Filed 1979·Granted Mar 17, 1981·13 cites·12 claims
- 4669US5963896ASpeech coder including an excitation quantizer for retrieving positions of amplitude pulses using spectral parameters and different gains for groups of the pulsesNEC CORP·Filed 1997·Granted Oct 5, 1999·55 cites·23 claims
- 4768US8693536B2Server apparatus, communication method and programOZAWA KAZUNORI·Filed 2009·Granted Apr 8, 2014·2 cites·18 claims
- 4868US7957465B2Moving picture data code conversion/transmission method and device, code conversion/reception method and deviceNEC CORP·Filed 2003·Granted Jun 7, 2011·7 cites·24 claims
- 4967US8237772B2Moving picture storage system, moving picture storage method, and moving picture storage programITO HIRONORI·Filed 2006·Granted Aug 7, 2012·2 cites·9 claims
- 5067US7978762B2Transcoder device for transcoding compressed and encoded bitstream of motion picture in syntax level and motion picture communication systemNEC CORP·Filed 2006·Granted Jul 12, 2011·2 cites·9 claims
Showing the top 50 of 215 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Kazunori 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 →