Inventor · disambiguated record
Keiichiro Doi
Also filed as: DOI KEIICHIRO
13 granted patents·299 citations·filing 1978–2017
93Inventor score
Top patents by PatentIndex Score
13 records- 0194USD267094SMagnetic card for microwave ovenSHARP KK·Filed 1979·Granted Nov 30, 1982·33 cites·1 claims
- 0290US9777838B2Gasket seal, door of aircraft, seal structure for opening portion of aircraft, and aircraftMITSUBISHI AIRCRAFT CORP·Filed 2017·Granted Oct 3, 2017·7 cites·11 claims
- 0389US9617783B2Gasket seal, door of aircraft, seal structure for opening portion of aircraft, and aircraftMITSUBISHI AIRCRAFT CORP·Filed 2012·Granted Apr 11, 2017·10 cites·18 claims
- 0489US4467162AExciting arrangement for induction heating processRICCAR CO LTD·Filed 1983·Granted Aug 21, 1984·58 cites·10 claims
- 0588US4351996AInduction heating apparatus with thermistor and magnetic sensorRICCAR CO LTD·Filed 1981·Granted Sep 28, 1982·54 cites·7 claims
- 0686USD267009SMagnetic card for microwave ovenSHARP KK·Filed 1979·Granted Nov 23, 1982·19 cites·1 claims
- 0784US4968864AMagnetic card control microwave ovenDOI KEIICHIRO·Filed 1978·Granted Nov 6, 1990·48 cites·22 claims
- 0877US4309585AError alarm system in a microwave ovenSHARP KK·Filed 1979·Granted Jan 5, 1982·30 cites·6 claims
- 0967US4339646ACooking operation announcement means of microwave ovenSHARP KK·Filed 1978·Granted Jul 13, 1982·21 cites·18 claims
- 1043US4646282AStylus for capacity change detection type disc systemVICTOR COMPANY OF JAPAN·Filed 1984·Granted Feb 24, 1987·8 cites·12 claims
- 1137US5084744AField effect transistor with active layer apart from guard-ringVICTOR COMPANY OF JAPAN·Filed 1988·Granted Jan 28, 1992·7 cites·6 claims
- 1232US4410974ACapacitance detection type record stylus and method for making the stylusVICTOR COMPANY OF JAPAN·Filed 1981·Granted Oct 18, 1983·1 cites·5 claims
- 1331US4430542AElectromagnetic cooking apparatusRICCAR CO LTD·Filed 1981·Granted Feb 7, 1984·3 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →