Inventor · disambiguated record
Koji Utsugi
Also filed as: UTSUGI KOJI
29 granted patents·6 pending applications·1,250 citations·filing 1990–2013
97Inventor score
Top patents by PatentIndex Score
35 records- 0198US5670792ACurrent-controlled luminous element array and method for producing the sameNEC CORP·Filed 1994·Granted Sep 23, 1997·298 cites·14 claims
- 0296US5837391AOrganic electroluminescent element having electrode between two fluorescent media for injecting carrier thereintoNEC CORP·Filed 1997·Granted Nov 17, 1998·280 cites·18 claims
- 0395US7202000B2Anode for secondary battery, secondary battery using same and method for fabricating anodeNEC CORP·Filed 2002·Granted Apr 10, 2007·71 cites·16 claims
- 0489US7163768B2Electrolyte solution for secondary battery and secondary battery using the sameNEC CORP·Filed 2003·Granted Jan 16, 2007·39 cites·29 claims
- 0587US6964829B2Lithium secondary cell and method for manufacturing sameNEC CORP·Filed 2001·Granted Nov 15, 2005·30 cites·9 claims
- 0686US6890685B2Anode for secondary battery and secondary battery therewithNEC CORP·Filed 2002·Granted May 10, 2005·28 cites·21 claims
- 0786US6294892B1Method of manufacturing organic thin-film EL deviceNEC CORP·Filed 1999·Granted Sep 25, 2001·76 cites·24 claims
- 0885US5747930AOrganic thin film electroluminescent deviceNEC CORP·Filed 1995·Granted May 5, 1998·171 cites·7 claims
- 0984US7285359B2Secondary battery-use negative electrode and secondary battery using itNEC CORP·Filed 2003·Granted Oct 23, 2007·25 cites·9 claims
- 1082US8357471B2Secondary battery using an electrolyte solutionNEC CORP·Filed 2011·Granted Jan 22, 2013·3 cites·6 claims
- 1179US9012071B2Electrolyte solution for a secondary batteryNEC CORP·Filed 2012·Granted Apr 21, 2015·2 cites·1 claims
- 1279US6224448B1Luminescent display device and method of forming the sameNEC CORP·Filed 2000·Granted May 1, 2001·29 cites·8 claims
- 1378US5858562AOrganic thin film electroluminescent deviceNEC CORP·Filed 1995·Granted Jan 12, 1999·65 cites·48 claims
- 1476US7419747B2Electrolyte for secondary battery and secondary battery using sameNEC CORP·Filed 2003·Granted Sep 2, 2008·12 cites·23 claims
- 1576US6777134B2Negative electrode for rechargeable batteryNEC CORP·Filed 2002·Granted Aug 17, 2004·13 cites·17 claims
- 1672US6627332B2Organic electroluminescent deviceNEC CORP·Filed 2001·Granted Sep 30, 2003·15 cites·5 claims
- 1770US8445144B2Additive for an electrolyte solution for an electrochemical deviceUTSUGI KOJI·Filed 2004·Granted May 21, 2013·12 cites·1 claims
- 1868US7462244B2Device and method for vacuum film formationNEC CORP·Filed 2002·Granted Dec 9, 2008·9 cites·5 claims
- 1964US6818353B2Lithium secondary battery and manufacturing method thereofNEC CORP·Filed 2001·Granted Nov 16, 2004·5 cites·10 claims
- 2064US5093691AOrganic thin-film el deviceNEC CORP·Filed 1990·Granted Mar 3, 1992·23 cites·5 claims
- 2162US7118831B2Nonaqueous electrolyte cellNEC CORP·Filed 2003·Granted Oct 10, 2006·5 cites·8 claims
- 2259US9583789B2Non-aqueous electrolyte secondary batteryNEC CORP·Filed 2013·Granted Feb 28, 2017·0 cites·9 claims
- 2358US8455142B2Non-aqueous electrolyte and non-aqueous electrolyte secondary battery using the sameISHIKAWA HITOSHI·Filed 2009·Granted Jun 4, 2013·0 cites·16 claims
- 2458US7608364B2Lithium ion secondary batteryNEC CORP·Filed 2003·Granted Oct 27, 2009·5 cites·10 claims
- 2557US8227116B2Secondary batteryKAWASAKI DAISUKE·Filed 2004·Granted Jul 24, 2012·3 cites·19 claims
- 2655US2011159379A1Secondary batteryNEC CORP·Filed 2009·Application pending·0 cites
- 2755US2011070504A1Secondary batteryNEC CORP·Filed 2009·Application pending·0 cites
- 2854US6818324B1Organic thin-film EL deviceSAMSUNG SDI CO LTD·Filed 1998·Granted Nov 16, 2004·15 cites·23 claims
- 2954US2012115037A1Polymer gel electrolyte and polymer secondary battery using sameKONO YASUTAKA·Filed 2009·Application pending·0 cites
- 3051US6811809B2Organic electroluminescent device and method for fabricating sameSAMSUNG SDI CO LTD·Filed 2002·Granted Nov 2, 2004·4 cites·4 claims
- 3149US2007212613A1Polymer gel electrolyte and polymer secondary battery using the sameNEC TOKIN CORP·Filed 2007·Application pending·0 cites
- 3246US5998046AGreen light emitting organic thin film electroluminescent deviceNEC CORP·Filed 1997·Granted Dec 7, 1999·12 cites·20 claims
- 3345US7662519B2Non-aqueous electrolyte secondary batteryNEC CORP·Filed 2004·Granted Feb 16, 2010·0 cites·10 claims
- 3441US2004258997A1Negative electrode for secondary cell,secondary cell, and method for producing negative electrode for secondary cellFiled 2003·Application pending·0 cites
- 3541US2005084759A1Lithium-ion secondary batteryFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →