Inventor · disambiguated record
Shigenobu Kawakami
Also filed as: KAWAKAMI SHIGENOBU
44 granted patents·829 citations·filing 1983–2012
98Inventor score
Top patents by PatentIndex Score
44 records- 0198US4618914AElectrical insulating oil and oil-filled electrical appliancesNIPPON PETROCHEMICALS CO LTD·Filed 1985·Granted Oct 21, 1986·280 cites·11 claims
- 0295US4543207AElectrical insulating oil and oil-filled electrical appliancesNIPPON PETROCHEMICALS CO LTD·Filed 1983·Granted Sep 24, 1985·76 cites·11 claims
- 0394US4493943AElectrical insulating oil and oil-filled electrical appliancesNIPPON PETROCHEMICALS CO LTD·Filed 1983·Granted Jan 15, 1985·41 cites·15 claims
- 0491US5017733AElectrical insulating oil compositionNIPPON PETROCHEMICALS CO LTD·Filed 1987·Granted May 21, 1991·51 cites·6 claims
- 0588US4621302AElectrical insulating oil and electrical appliances impregnated with the sameNIPPON PETROCHEMICALS CO LTD·Filed 1985·Granted Nov 4, 1986·44 cites·7 claims
- 0687US4549034ARefined electrical insulating oil and oil-filled electrical appliancesNIPPON PETROCHEMICALS CO LTD·Filed 1984·Granted Oct 22, 1985·39 cites·9 claims
- 0782US4734824AElectrical insulating oil and electrical appliances impregnated with the sameNIPPON PETROCHEMICALS CO LTD·Filed 1986·Granted Mar 29, 1988·35 cites·12 claims
- 0881US4681980AMethod for improving an electrical insulating hydrocarbonNIPPON PETROCHEMICALS CO LTD·Filed 1985·Granted Jul 21, 1987·32 cites·5 claims
- 0976US4994539AMethod for improving impulse destructive stength of electrical insulating materialsNIPPON PETROCHEMICALS CO LTD·Filed 1985·Granted Feb 19, 1991·20 cites·20 claims
- 1076US4642730AElectrical insulating oil and oil-filled electrical appliancesNIPPON PETROCHEMICALS CO LTD·Filed 1985·Granted Feb 10, 1987·32 cites·23 claims
- 1173US8763763B2Elevator apparatus having car position detectionKAWAKAMI SHIGENOBU·Filed 2008·Granted Jul 1, 2014·9 cites·3 claims
- 1272US4902841AMethod for producing electrical insulating oil compositionNIPPON PETROCHEMICALS CO LTD·Filed 1988·Granted Feb 20, 1990·10 cites·8 claims
- 1370US5015793AElectrical insulating oil compositionNIPPON PETROCHEMICALS CO LTD·Filed 1987·Granted May 14, 1991·21 cites·6 claims
- 1468US4899009AMethod for producing m-benzyltoluneNIPPON PETROCHEMICALS CO LTD·Filed 1989·Granted Feb 6, 1990·8 cites·5 claims
- 1566US9090435B2Elevator hoisting machine and elevator hoisting machine manufacturing methodKAWAKAMI SHIGENOBU·Filed 2010·Granted Jul 28, 2015·3 cites·9 claims
- 1666US4506107AElectrical insulating oil and oil-filled electrical appliancesNIPPON PETROCHEMICALS CO LTD·Filed 1984·Granted Mar 19, 1985·16 cites·17 claims
- 1764US9475675B2Elevator and elevator refurbishing methodKAWAKAMI SHIGENOBU·Filed 2012·Granted Oct 25, 2016·2 cites·5 claims
- 1854US9114956B2Elevator modification work apparatusKAWAKAMI SHIGENOBU·Filed 2010·Granted Aug 25, 2015·1 cites·7 claims
- 1954US5107395AMethod of producing insulating oil comprising dibenzylbenzeneNIPPON PETROCHEMICALS CO LTD·Filed 1990·Granted Apr 21, 1992·9 cites·11 claims
- 2050US4761508A1,1-(3-ethylphenyl)phenylethylene and method for preparing itNIPPON PETROCHEMICALS CO LTD·Filed 1986·Granted Aug 2, 1988·3 cites·1 claims
- 2150US4717759AEthylene copolymersNIPPON PETROCHEMICALS CO LTD·Filed 1985·Granted Jan 5, 1988·6 cites·5 claims
- 2249US4591948AOil-filled capacitorNIPPON PETROCHEMICALS CO LTD·Filed 1985·Granted May 27, 1986·7 cites·4 claims
- 2348US4731483AMethod for preparing 3-ethylbenzophenoneNIPPON PETROCHEMICALS CO LTD·Filed 1986·Granted Mar 15, 1988·3 cites·11 claims
- 2446US4870221AOil-filled capacitorNIPPON PETROCHEMICALS CO LTD·Filed 1987·Granted Sep 26, 1989·8 cites·8 claims
- 2546US4639833ANew electrical insulating oil and oil-filled electrical appliancesNIPPON PETROCHEMICALS CO LTD·Filed 1985·Granted Jan 27, 1987·6 cites·7 claims
- 2645US5081758AElectrical insulating oil composition and capacitors prepared therewithNIPPON PETROCHEMICALS CO LTD·Filed 1991·Granted Jan 21, 1992·8 cites·10 claims
- 2744US4748209AMethod for improving impulse destructive strength of electrical insulating materialsNIPPON PETROCHEMICALS CO LTD·Filed 1987·Granted May 31, 1988·9 cites·10 claims
- 2843US4568793AElectrical insulating oil and oil-filled electrical appliancesNIPPON PETROCHEMICALS CO LTD·Filed 1985·Granted Feb 4, 1986·6 cites·13 claims
- 2942US4982025AElectrical insulating oil comprising improved fractionNIPPON PETROCHEMICALS CO LTD·Filed 1989·Granted Jan 1, 1991·6 cites·11 claims
- 3041US4804729AElectrical insulating material and power cable comprising a crosslinked layer thereofNIPPON PETROCHEMICALS CO LTD·Filed 1987·Granted Feb 14, 1989·7 cites·6 claims
- 3140US5081757AElectrical insulating oil composition and capacitors prepared therewithNIPPON PETROCHEMICALS CO LTD·Filed 1991·Granted Jan 21, 1992·6 cites·10 claims
- 3239US7500652B2Hoist for elevatorMITSUBISHI ELECTRIC CORP·Filed 2004·Granted Mar 10, 2009·2 cites·4 claims
- 3338US5171906AProcess for treating by-product oilNIPPON PETROCHEMICALS CO LTD·Filed 1989·Granted Dec 15, 1992·5 cites·20 claims
- 3437US4750083AElectrical insulating oil compositionNIPPON PETROCHEMICALS CO LTD·Filed 1987·Granted Jun 7, 1988·3 cites·6 claims
- 3536US5113029AElectric insulating oil compositionNIPPON PETROCHEMICALS CO LTD·Filed 1987·Granted May 12, 1992·3 cites·4 claims
- 3636US4736007ANovel ethylene copolymersNIPPON PETROCHEMICALS CO LTD·Filed 1986·Granted Apr 5, 1988·3 cites·7 claims
- 3733US4716084AOil-impregnated capacitorNIPPON PETROCHEMICALS CO LTD·Filed 1986·Granted Dec 29, 1987·3 cites·9 claims
- 3832US4670348AElectrical appliance impregnated with a curable impregnant compositionNIPPON PETROCHEMICALS CO LTD·Filed 1984·Granted Jun 2, 1987·2 cites·12 claims
- 3932US4631632AImpregnated capacitorNIPPON PETROCHEMICALS CO LTD·Filed 1985·Granted Dec 23, 1986·2 cites·6 claims
- 4031US4967028AElectrical insulating oil composition and electrical appliances impregnated therewithNIPPON PETROCHEMICALS CO LTD·Filed 1988·Granted Oct 30, 1990·1 cites·17 claims
- 4131US4802058ANovel method for refining electrical insulating oilNIPPON PETROCHEMICALS CO LTD·Filed 1988·Granted Jan 31, 1989·1 cites·5 claims
- 4230US5134761AElectrical insulating oil composition and capacitors prepared therewithNIPPON PETROCHEMICALS CO LTD·Filed 1991·Granted Aug 4, 1992·0 cites·10 claims
- 4329US4803238APolymer compositionNIPPON PETROCHEMICALS CO LTD·Filed 1987·Granted Feb 7, 1989·0 cites·3 claims
- 4429US4661165ASolvent for the dye of pressure-sensitive recording paperNIPPON PETROCHEMICALS CO LTD·Filed 1985·Granted Apr 28, 1987·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →