Inventor · disambiguated record
Koji Iwahashi
Also filed as: IWAHASHI KOJI
10 granted patents·2 pending applications·117 citations·filing 1975–2024
88Inventor score
Top patents by PatentIndex Score
12 records- 0174US4052172AProcess for gasifying coal or other carbon containing materialMITSUBISHI HEAVY IND LTD·Filed 1975·Granted Oct 4, 1977·29 cites·5 claims
- 0273US10135379B2State display device of industrial machinery and power conversion deviceYASKAWA ELECTRIC CORP·Filed 2017·Granted Nov 20, 2018·4 cites·19 claims
- 0371US4742565ARadio receiver with field intensity detectorNEC CORP·Filed 1987·Granted May 3, 1988·24 cites·7 claims
- 0467US5033293AAlcohol concentration detecting deviceCALSONIC CORP·Filed 1990·Granted Jul 23, 1991·38 cites·12 claims
- 0554US2024333191A1Electric power conversion systemYASKAWA ELECTRIC CORP·Filed 2024·Application pending·0 cites
- 0651US8918668B2Interface circuit, inverter device, inverter system, and transmitting and receiving methodIWAHASHI KOJI·Filed 2012·Granted Dec 23, 2014·1 cites·2 claims
- 0743US9660545B2Matrix converterYASKAWA ELECTRIC CORP·Filed 2014·Granted May 23, 2017·0 cites·16 claims
- 0841US4983904ABattery charger for vehicle-mounted equipment using engine operation as start timing determinationNEC CORP·Filed 1989·Granted Jan 8, 1991·9 cites·7 claims
- 0938US4484358AReceiver having switched capacitor filterNIPPON ELECTRIC CO·Filed 1983·Granted Nov 20, 1984·5 cites·7 claims
- 1035US2018107170A1Electric motor drive control system and driving instruction method of electric motor drive control deviceYASKAWA ELECTRIC CORP·Filed 2017·Application pending·0 cites
- 1130US5201070ARadio communication apparatus comprising a single level controllerNEC CORP·Filed 1990·Granted Apr 6, 1993·4 cites·4 claims
- 1229US5603105ABaseband signal processing circuit for a radio communication apparatusNEC CORP·Filed 1993·Granted Feb 11, 1997·3 cites·8 claims
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