Inventor
UTSUGI KOJI
JP29 patents
⚠️ This page may combine multiple inventors who share the name “UTSUGI KOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
24 patentsUS5837391ANov 17, 1998
Organic electroluminescent element having electrode between two fluorescent media for injecting carrier thereinto
NEC CORP280 citations99
US5747930AMay 5, 1998
Organic thin film electroluminescent device
NEC CORP171 citations99
US5670792ASep 23, 1997
Current-controlled luminous element array and method for producing the same
NEC CORP298 citations99
US7202000B2Apr 10, 2007
Anode for secondary battery, secondary battery using same and method for fabricating anode
NEC CORP71 citations97
US5858562AJan 12, 1999
Organic thin film electroluminescent device
NEC CORP65 citations95
US6294892B1Sep 25, 2001
Method of manufacturing organic thin-film EL device
NEC CORP76 citations94
US6224448B1May 1, 2001
Luminescent display device and method of forming the same
NEC CORP29 citations93
US7285359B2Oct 23, 2007
Secondary battery-use negative electrode and secondary battery using it
NEC CORP25 citations92
US6964829B2Nov 15, 2005
Lithium secondary cell and method for manufacturing same
NEC CORP30 citations92
US6890685B2May 10, 2005
Anode for secondary battery and secondary battery therewith
NEC CORP28 citations92
US7163768B2Jan 16, 2007
Electrolyte solution for secondary battery and secondary battery using the same
NEC CORP39 citations91
US5093691AMar 3, 1992
Organic thin-film el device
NEC CORP23 citations91
US7419747B2Sep 2, 2008
Electrolyte for secondary battery and secondary battery using same
NEC CORP12 citations84
US7462244B2Dec 9, 2008
Device and method for vacuum film formation
NEC CORP9 citations83
US6777134B2Aug 17, 2004
Negative electrode for rechargeable battery
NEC CORP13 citations83
US6627332B2Sep 30, 2003
Organic electroluminescent device
NEC CORP15 citations82
US5998046ADec 7, 1999
Green light emitting organic thin film electroluminescent device
NEC CORP12 citations74
US7608364B2Oct 27, 2009
Lithium ion secondary battery
NEC CORP5 citations62
US7118831B2Oct 10, 2006
Nonaqueous electrolyte cell
NEC CORP5 citations62
US6818353B2Nov 16, 2004
Lithium secondary battery and manufacturing method thereof
NEC CORP5 citations62
US9012071B2Apr 21, 2015
Electrolyte solution for a secondary battery
NEC CORP2 citations61
US8357471B2Jan 22, 2013
Secondary battery using an electrolyte solution
NEC CORP3 citations61
US9583789B2Feb 28, 2017
Non-aqueous electrolyte secondary battery
NEC CORP0 citations52
US7662519B2Feb 16, 2010
Non-aqueous electrolyte secondary battery
NEC CORP0 citations42