Inventor · disambiguated record
Tadashi Nagai
Also filed as: NAGAI TADASHI
26 granted patents·1 pending application·513 citations·filing 1975–2012
97Inventor score
Top patents by PatentIndex Score
27 records- 0193US4007590ACatalytic convertor warming up systemNISSAN MOTOR·Filed 1975·Granted Feb 15, 1977·44 cites·3 claims
- 0291US6848478B2Flexible tubeCALSONIC KANSEI CORP·Filed 2002·Granted Feb 1, 2005·49 cites·9 claims
- 0388US4528223AComposite fibrous productHITACHI LTD·Filed 1981·Granted Jul 9, 1985·49 cites·13 claims
- 0486US6581721B2Valve for a control mufflerCALSONIC KANSEI CORP·Filed 2001·Granted Jun 24, 2003·35 cites·7 claims
- 0585US7426979B2Exhaust gas control valveCALSONIC KANSEI CORP·Filed 2006·Granted Sep 23, 2008·13 cites·13 claims
- 0684US3983754AApparatus for detecting misfires in multi-cylinder type internal combustion enginesNISSAN MOTOR·Filed 1975·Granted Oct 5, 1976·36 cites·5 claims
- 0781US4517134AVariable venturi carburetorNISSAN MOTOR·Filed 1983·Granted May 14, 1985·23 cites·13 claims
- 0876US4421081ASpark-ignition internal combustion engineNISSAN MOTOR·Filed 1981·Granted Dec 20, 1983·28 cites·11 claims
- 0975US9042709B2Image capture device, player, and image processing methodPANASONIC CORP·Filed 2012·Granted May 26, 2015·3 cites·13 claims
- 1075US6637449B2Pressure sensible valve for exhaust muffler and method of assembling sameCALSONIC KANSEI CORP·Filed 2001·Granted Oct 28, 2003·26 cites·9 claims
- 1175US5051133AGelatinized cereal flours and process for their productionSUNTORY LTD·Filed 1989·Granted Sep 24, 1991·21 cites·1 claims
- 1274US6736160B2Valve structure for engine exhaust systemCALSONIC KANSEI CORP·Filed 2002·Granted May 18, 2004·26 cites·10 claims
- 1370US4134262AExhaust gas catalytic converter systemNISSAN MOTOR·Filed 1976·Granted Jan 16, 1979·21 cites·9 claims
- 1464US3984976AAir-fuel ratio control system for automotive engine with compensation circuit for deterioration of feedback signal generatorNISSAN MOTOR·Filed 1975·Granted Oct 12, 1976·14 cites·15 claims
- 1561US5967193AFlexible pipe unit for use in exhaust pipe line of automotive engineCALSONIC CORP·Filed 1997·Granted Oct 19, 1999·29 cites·27 claims
- 1661US4132193AExhaust gas temperature detection for fuel control systemsNISSAN MOTOR·Filed 1977·Granted Jan 2, 1979·13 cites·7 claims
- 1759US4742395AVideo camera apparatus having a solid-state image sensor and a high shutter speedMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1986·Granted May 3, 1988·17 cites·9 claims
- 1853US4785287AOil condition detecting apparatusNIHON RADIATOR CO·Filed 1987·Granted Nov 15, 1988·16 cites·14 claims
- 1952US5915677ACircular plate springCALSONIC CORP·Filed 1997·Granted Jun 29, 1999·20 cites·9 claims
- 2049US6287523B1Metal thin film for metal catalyst carrier and metal catalyst converter employing the metal thin filmCALSONIC KANSEI CORP·Filed 1997·Granted Sep 11, 2001·16 cites·18 claims
- 2148US9007492B2Image processing device and imaging devicePANASONIC CORP·Filed 2012·Granted Apr 14, 2015·0 cites·8 claims
- 2246US9288474B2Image device and image processing method for generating control information indicating the degree of stereoscopic property or whether or not 3D image needs to be outputtedPANASONIC CORP·Filed 2012·Granted Mar 15, 2016·0 cites·12 claims
- 2343US5158615AGelatinized cereal flours and process for their productionSUNTORY LTD·Filed 1991·Granted Oct 27, 1992·5 cites·7 claims
- 2438US4380984AElectronic controlled carburetorNISSAN MOTOR·Filed 1981·Granted Apr 26, 1983·5 cites·14 claims
- 2538US2013169761A1Image capturing deviceINOUE MASAYUKI·Filed 2011·Application pending·0 cites
- 2633US4489014AVariable venturi carburetorNISSAN MOTOR·Filed 1983·Granted Dec 18, 1984·2 cites·7 claims
- 2733US4079704AInternal combustion engineNISSAN MOTOR·Filed 1976·Granted Mar 21, 1978·2 cites·3 claims
Join the waitlist — get patent alerts
Get an alert when Tadashi Nagai 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 →