Inventor · disambiguated record
Masao Iwata
Also filed as: IWATA MASAO
39 granted patents·5 pending applications·689 citations·filing 1975–2020
98Inventor score
Files withOPPAMA KOGYO KK14HITACHI METALS LTD7MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5OKI ELECTRIC IND CO LTD3YAZAKI CORP3
Top patents by PatentIndex Score
44 records- 0193US9726095B2Engine driven working machineYAMABIKO CORP·Filed 2015·Granted Aug 8, 2017·8 cites·8 claims
- 0290US5811908AMagneto electric generator rotor and an implement for removing this rotorOPPAMA KOGYO KK·Filed 1996·Granted Sep 22, 1998·67 cites·11 claims
- 0385US5525954AStripline resonatorOKI ELECTRIC IND CO LTD·Filed 1994·Granted Jun 11, 1996·42 cites·10 claims
- 0482US8469001B2Work apparatus with internal combustion engineYOSHIZAKI TAKUO·Filed 2009·Granted Jun 25, 2013·17 cites·10 claims
- 0582US6802284B2Fuel injection device and air-fuel mixture generating device provided with fuel injection deviceOPPAMA KOGYO KK·Filed 2002·Granted Oct 12, 2004·22 cites·7 claims
- 0682US4720622AWall-mounted type cooking apparatusSANYO ELECTRIC CO·Filed 1985·Granted Jan 19, 1988·48 cites·20 claims
- 0780US5525942ALC-type dielectric filter and duplexerOKI ELECTRIC IND CO LTD·Filed 1994·Granted Jun 11, 1996·92 cites·42 claims
- 0880US4093477AAnisotropic permanent magnet alloy and a process for the production thereofHITACHI METALS LTD·Filed 1976·Granted Jun 6, 1978·25 cites·18 claims
- 0979US5715527AMobile communication device having an output power sensor succeeding a transmission filterOKI ELECTRIC IND CO LTD·Filed 1995·Granted Feb 3, 1998·46 cites·10 claims
- 1078US11797290B2Update control device and update control methodMITSUBISHI ELECTRIC CORP·Filed 2018·Granted Oct 24, 2023·2 cites·9 claims
- 1176US3982972ASemihard magnetic alloy and a process for the production thereofHITACHI METALS LTD·Filed 1975·Granted Sep 28, 1976·20 cites·13 claims
- 1274US5652462AMultilevel semiconductor integrated circuit deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Jul 29, 1997·43 cites·15 claims
- 1372US5490041ASemiconductor integrated circuit module and a semiconductor integrated circuit device stacking the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Feb 6, 1996·38 cites·33 claims
- 1465US4385617AOver-rotation preventing device for internal combustion enginesOPPAMA KOGYO KK·Filed 1980·Granted May 31, 1983·12 cites·6 claims
- 1564US3989556ASemihard magnetic alloy and a process for the production thereofHITACHI METALS LTD·Filed 1975·Granted Nov 2, 1976·14 cites·11 claims
- 1663US2015180143A1Battery terminal stopper and battery terminal unitYAZAKI CORP·Filed 2014·Application pending·0 cites
- 1761US5742097AMultilevel semiconductor integrated circuit deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Apr 21, 1998·25 cites·11 claims
- 1857US10205255B2Battery terminal stopper and battery terminal unitYAZAKI CORP·Filed 2016·Granted Feb 12, 2019·1 cites·10 claims
- 1957US6303989B1Integrated circuit device on metal board with CPU power converterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Oct 16, 2001·27 cites·15 claims
- 2056US6584957B2Contactless ignition system for internal combustion engineOPPAMA KOGYO KK·Filed 2002·Granted Jul 1, 2003·6 cites·3 claims
- 2156US4722206ALock system for hinged window-mounted back doorNISSAN MOTOR·Filed 1986·Granted Feb 2, 1988·22 cites·20 claims
- 2255US10305082B2Terminal-securing auxiliary memberYAZAKI CORP·Filed 2016·Granted May 28, 2019·1 cites·16 claims
- 2352US6354522B2Electrostatic sprayerOPPAMA KOGYO KK·Filed 2001·Granted Mar 12, 2002·5 cites·3 claims
- 2451US7726181B2Ignition timing measuring and display device of internal combustion engineOPPAMA KOGYO KK·Filed 2006·Granted Jun 1, 2010·2 cites·6 claims
- 2551US5800728APermanent magnetic material made of iron-rare earth metal alloyHITACHI METALS LTD·Filed 1995·Granted Sep 1, 1998·16 cites·2 claims
- 2651US4515140AContactless ignition device for internal combustion enginesOPPAMA KOGYO KK·Filed 1983·Granted May 7, 1985·7 cites·5 claims
- 2751US4194932AFe/Cr/Co Permanent magnetic alloys and method of production thereofHITACHI METALS LTD·Filed 1978·Granted Mar 25, 1980·8 cites·14 claims
- 2850US7913547B2Engine rotating meterOPPAMA KOGYO KK·Filed 2006·Granted Mar 29, 2011·1 cites·11 claims
- 2949US4305764AMethod of producing Fe/Cr/Co permanent magnet alloyHITACHI METALS LTD·Filed 1979·Granted Dec 15, 1981·7 cites·18 claims
- 3048US5528458AIntegrated circuit device and its manufacturing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Jun 18, 1996·20 cites·6 claims
- 3147US8161943B2Non-contact ignition control device of internal combustion engineIWATA MASAO·Filed 2007·Granted Apr 24, 2012·2 cites·3 claims
- 3244US6574085B1Power supply apparatus for electrostatic charging and method for sameOPPAMA KOGYO KK·Filed 2000·Granted Jun 3, 2003·3 cites·19 claims
- 3344US2023069005A1Vehicle control device, convoy travel management device, and convoy travel management methodMITSUBISHI ELECTRIC CORP·Filed 2020·Application pending·0 cites
- 3442US6873073B2Magneto rotorOPPAMA KOGYO KK·Filed 2002·Granted Mar 29, 2005·2 cites·6 claims
- 3542US2008280288A1Assay Method to Predict Sensitivity of Cancer Cell to Anticancer DrugUENAKA TOSHIMITSU·Filed 2005·Application pending·0 cites
- 3638US6467147B2Magneto electric generator rotor and an implement for removing this rotorOPPAMA KOGYO KK·Filed 1999·Granted Oct 22, 2002·7 cites·2 claims
- 3738US4989885AMagnetic fluid retainer, and shaft sealer employing sameHITACHI METALS LTD·Filed 1990·Granted Feb 5, 1991·11 cites·1 claims
- 3837US5793649AApparatus for measuring the operation of vehicular enginesKIORITZ CORP·Filed 1996·Granted Aug 11, 1998·8 cites·1 claims
- 3936US6023828AMagneto electric generator rotor and an implement for removing this rotorOPPAMA KOGYO KK·Filed 1997·Granted Feb 15, 2000·6 cites·11 claims
- 4035US2018294655A1Portable electric work machine, and battery packOPPAMA IND CO LTD·Filed 2016·Application pending·0 cites
- 4135US2018294656A1Portable electric work machine, battery pack, and battery-pack-state management deviceOPPAMA IND CO LTD·Filed 2016·Application pending·0 cites
- 4231US5240428AWorking machine safety deviceKIORITZ CORP·Filed 1992·Granted Aug 31, 1993·2 cites·1 claims
- 4329US4565180AContactless ignition device for internal combustion enginesOPPAMA KOGYO KK·Filed 1984·Granted Jan 21, 1986·0 cites·3 claims
- 4426US5903079ARotor of rotating equipmentOPPAMA KOGYO KK·Filed 1997·Granted May 11, 1999·4 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →