Inventor · disambiguated record
Masaaki Nagai
Also filed as: NAGAI MASAAKI
38 granted patents·3 pending applications·454 citations·filing 1985–2022
97Inventor score
Files withFUJI HEAVY IND LTD11PANASONIC IP MAN CO LTD11LEADER ELECTRONICS7MITSUBISHI CABLE IND LTD2TOKAI RUBBER IND LTD2
Top patents by PatentIndex Score
41 records- 0184US9952002B2Heat transfer fin, heat exchanger, and refrigeration cycle devicePANASONIC IP MAN CO LTD·Filed 2014·Granted Apr 24, 2018·4 cites·7 claims
- 0284US6006089ASystem and method of measuring electric field strengthLEADER ELECTRONICS·Filed 1997·Granted Dec 21, 1999·82 cites·18 claims
- 0383US4906035AAutomatic locking device for trunk lid of motor vehicleFUJI HEAVY IND LTD·Filed 1988·Granted Mar 6, 1990·51 cites·4 claims
- 0481US9644896B2Fin-and-tube heat exchanger and refrigeration cycle devicePANASONIC IP MAN CO LTD·Filed 2014·Granted May 9, 2017·3 cites·3 claims
- 0578US10222095B2Heat storage apparatus and method of completing crystallization of heat storage materialPANASONIC CORP·Filed 2017·Granted Mar 5, 2019·1 cites·18 claims
- 0676US5378995ALow molecular weight organic liquid detection sensor in the shape of a wire and detector using this sensorMITSUBISHI CABLE IND LTD·Filed 1993·Granted Jan 3, 1995·34 cites·19 claims
- 0771US5450623ACN ratio measuring apparatusLEADER ELECTRONICS·Filed 1993·Granted Sep 12, 1995·53 cites·8 claims
- 0863US11611349B2Analog-to-digital converter, sensor system , and test systemPANASONIC IP MAN CO LTD·Filed 2020·Granted Mar 21, 2023·0 cites·9 claims
- 0961US4715342ASystem for controlling the ignition timing of an internal combustion engineFUJI HEAVY IND LTD·Filed 1985·Granted Dec 29, 1987·10 cites·2 claims
- 1060US5638277ASystem for controlling a throttle valve in a following control system for motor vehiclesFUJI HEAVY IND LTD·Filed 1996·Granted Jun 10, 1997·19 cites·9 claims
- 1159US11645177B2Diagnosis circuit for making a diagnosis of a multiplexerPANASONIC IP MAN CO LTD·Filed 2022·Granted May 9, 2023·0 cites·8 claims
- 1258US4766545ASystem for controlling the ignition timing of an internal combustion engineFUJI HEAVY IND LTD·Filed 1985·Granted Aug 23, 1988·17 cites·3 claims
- 1357US7301559B2Measuring instrument for measuring video signal level and display device for displaying video signal levelLEADER ELECTRONICS·Filed 2003·Granted Nov 27, 2007·4 cites·27 claims
- 1457US5419293AFail-safe system of an automatic driving system for a motor vehicleFUJI HEAVY IND LTD·Filed 1994·Granted May 30, 1995·15 cites·5 claims
- 1557US5242649AMolded calcium silicate articles and method for producing sameUBE INDUSTRIES·Filed 1991·Granted Sep 7, 1993·15 cites·20 claims
- 1656US12510559B2Inertial detection circuit, inertial sensor, and inertial detection methodPANASONIC IP MAN CO LTD·Filed 2021·Granted Dec 30, 2025·0 cites·10 claims
- 1756US11754593B2Signal processing device, inertial sensor, signal processing method, and programPANASONIC IP MAN CO LTD·Filed 2020·Granted Sep 12, 2023·0 cites·12 claims
- 1856US5897608ACompensating apparatus and method for signal processing circuitLEADER ELECTRONICS·Filed 1997·Granted Apr 27, 1999·27 cites·36 claims
- 1956US2024356435A1Voltage boost circuit and sensor devicePANASONIC IP MAN CO LTD·Filed 2022·Application pending·0 cites
- 2054US5291285ATelevision signal level meterLEADER ELECTRONICS·Filed 1992·Granted Mar 1, 1994·18 cites·8 claims
- 2153US11677411B2A/D converter, sensor processing circuit, and sensor systemPANASONIC IP MAN CO LTD·Filed 2020·Granted Jun 13, 2023·0 cites·12 claims
- 2252US11664815B2Digital filter, A/D converter, sensor processing circuit, and sensor systemPANASONIC IP MAN CO LTD·Filed 2020·Granted May 30, 2023·0 cites·10 claims
- 2352US5591522AInsulating tape or sheetTOKAI RUBBER IND LTD·Filed 1994·Granted Jan 7, 1997·13 cites·7 claims
- 2451US7535487B2Measuring instrument for measuring video signal level and display device for displaying video signal levelLEADER ELECTRONICS·Filed 2007·Granted May 19, 2009·0 cites·17 claims
- 2551US4620518ASystem for controlling the ignition timing of an internal combustion engineFUJI HEAVY IND LTD·Filed 1985·Granted Nov 4, 1986·7 cites·3 claims
- 2650US12203955B2Signal processing device, inertial sensor, signal processing method, and programPANASONIC IP MAN CO LTD·Filed 2020·Granted Jan 21, 2025·0 cites·14 claims
- 2748US5677501AFlow display type indicating method and apparatusLEADER ELECTRONICS·Filed 1996·Granted Oct 14, 1997·14 cites·29 claims
- 2848US4694801ASystem for controlling the ignition timing of an internal combustion engineFUJI HEAVY IND LTD·Filed 1985·Granted Sep 22, 1987·6 cites·7 claims
- 2947US4601272AIgnition timing control system for an automotive engineFUJI HEAVY IND LTD·Filed 1985·Granted Jul 22, 1986·11 cites·2 claims
- 3046US2008024173A1Semiconductor integrated circuit including a malfunction detection circuit, and a design method for the sameNAGAI MASAAKI·Filed 2007·Application pending·0 cites
- 3145US10381963B2Motor drive controlling apparatus, motor drive controlling method, and tube pumpMINEBEA MITSUMI INC·Filed 2017·Granted Aug 13, 2019·0 cites·12 claims
- 3245US5546790ALow molecular weight organic liquid leakage detection systemMITSUBISHI CABLE IND LTD·Filed 1995·Granted Aug 20, 1996·13 cites·10 claims
- 3345US2005044131A1Measuring instrument having web server functionFiled 2003·Application pending·0 cites
- 3443US11916563B2Analog-to-digital converter, sensor processing circuit, and sensor systemPANASONIC IP MAN CO LTD·Filed 2020·Granted Feb 27, 2024·0 cites·6 claims
- 3543US4736723ASystem and method for controlling the ignition timing of an internal combustion engineFUJI HEAVY IND LTD·Filed 1985·Granted Apr 12, 1988·9 cites·2 claims
- 3640US7308833B2Torque sensor, wire harness, electric power steering assembly and terminal holderFAVESS CO LTD·Filed 2005·Granted Dec 18, 2007·2 cites·6 claims
- 3737US5847322AInsulating tape or sheetTOKAI RUBBER IND LTD·Filed 1996·Granted Dec 8, 1998·8 cites·10 claims
- 3837US4691678ASystem for controlling the ignition timing of an internal combustion engineFUJI HEAVY IND LTD·Filed 1985·Granted Sep 8, 1987·3 cites·2 claims
- 3936US6186080B1Recovery boilerMITSUBISHI HEAVY IND LTD·Filed 1997·Granted Feb 13, 2001·7 cites·2 claims
- 4034US4726339ASystem for controlling the ignition timing of an internal combustion engineFUJI HEAVY IND LTD·Filed 1985·Granted Feb 23, 1988·4 cites·3 claims
- 4133US4952243AStatical demolition-facilitating agentUBE INDUSTRIES·Filed 1988·Granted Aug 28, 1990·4 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →