Inventor
ADACHI CHIHAYA
JP131 patents
⚠️ This page may combine multiple inventors who share the name “ADACHI CHIHAYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
20 patentsUS5077142ADec 31, 1991
Electroluminescent devices
RICOH KK384 citations99
US6191249B1Feb 20, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK64 citations96
US6069224AMay 30, 2000
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK54 citations96
US5942363AAug 24, 1999
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK72 citations96
US5932362AAug 3, 1999
Organic electroluminescent element
RICOH KK44 citations96
US5910561AJun 8, 1999
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK60 citations96
US5846680ADec 8, 1998
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK70 citations96
US5840454ANov 24, 1998
Aromatic polycarbonate and electrophotographic photosensitive medium using same
RICOH KK62 citations96
US5789128AAug 4, 1998
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK73 citations96
US5723243AMar 3, 1998
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK57 citations96
US5656401AAug 12, 1997
Electroluminescent device comprising oxadiazole compounds luminescent material, oxadiazole compounds for the device, and method of producing oxadiazole compounds
RICOH KK76 citations96
US5610309AMar 11, 1997
Electroluminescent device comprising oxadiazole compounds luminescent material, oxadiazole compounds for the device, and method of producing oxadiazole compounds
RICOH KK63 citations96
US5597925AJan 28, 1997
Method of producing oxadiazole compounds
RICOH KK67 citations96
US5420288AMay 30, 1995
Electroluminescent device comprising oxadiazole compounds luminescent material, oxadiazole compounds for the device, and method of producing oxadiazole compounds
RICOH KK83 citations96
US5085946AFeb 4, 1992
Electroluminescence device
RICOH KK66 citations96
US5709959AJan 20, 1998
Organic thin film electroluminescence device
RICOH KK26 citations93
US5702833ADec 30, 1997
Organic electroluminescent element
RICOH KK40 citations93
US6018014AJan 25, 2000
Aromatic polycarbonate and electrophotographic photosensitive medium using same
RICOH KK41 citations92
US7745988B2Jun 29, 2010
3, 6-diphenylcarbazole compound and organic electroluminescent device
RICOH KK27 citations90
US5085947AFeb 4, 1992
Electroluminescence device
RICOH KK31 citations88
UNIV PRINCETON
10 patentsUS6939624B2Sep 6, 2005
Organometallic compounds and emission-shifting organic electrophosphorescence
UNIV PRINCETON179 citations99
US6645645B1Nov 11, 2003
Phosphorescent organic light emitting devices
UNIV PRINCETON171 citations99
US7553560B2Jun 30, 2009
Organometallic compounds and emission-shifting organic electrophosphorescence
UNIV PRINCETON100 citations98
US6867538B2Mar 15, 2005
Double doped-layer, phosphorescent organic light emitting devices
UNIV PRINCETON81 citations98
US6573651B2Jun 3, 2003
Highly efficient OLEDs using doped ambipolar conductive molecular organic thin films
UNIV PRINCETON118 citations98
US6639357B1Oct 28, 2003
High efficiency transparent organic light emitting devices
UNIV PRINCETON62 citations96
US6900588B2May 31, 2005
Highly efficient OLEDs using doped ambipolar conductive molecular organic thin films
UNIV PRINCETON34 citations93
US7288331B2Oct 30, 2007
Organic light emitting devices having carrier transporting layers comprising metal complexes
UNIV PRINCETON20 citations92
US7078113B2Jul 18, 2006
Organic light emitting devices having carrier transporting layers comprising metal complexes
UNIV PRINCETON27 citations92
US6885149B2Apr 26, 2005
High efficiency transparent organic light emitting devices
UNIV PRINCETON34 citations92
UNIV KYUSHU NAT UNIV CORP
6 patentsUS9153788B2Oct 6, 2015
Organic light-emitting device, and delayed fluorescent material and compound used therefor
UNIV KYUSHU NAT UNIV CORP16 citations84
US9793492B2Oct 17, 2017
Compound, light emitter, and organic light emitting device
UNIV KYUSHU NAT UNIV CORP11 citations83
US9685615B2Jun 20, 2017
Light emitting material, delayed fluorescent emitter, organic light emitting device, and compound
UNIV KYUSHU NAT UNIV CORP8 citations82
US9634262B2Apr 25, 2017
Charge transport material, host material, thin film and organic light emitting element
UNIV KYUSHU NAT UNIV CORP10 citations82
US9502668B2Nov 22, 2016
Organic light-emitting device, and light-emitting material and compound used therefor
UNIV KYUSHU NAT UNIV CORP12 citations81
US7965037B2Jun 21, 2011
Organic electroluminescence device and organic laser diode
UNIV KYUSHU NAT UNIV CORP9 citations79
NAKAGAWA TETSUYA
2 patentsUNIV SOUTHERN CALIFORNIA
1 patentTRUSTEE OF PRINCETON UNIVERSIT
1 patentENDO AYATAKA
1 patentSANYO ELECTRIC CO
1 patentMITSUBISHI CHEM IND
1 patentYANO KOKI
1 patentOPTC CO LTD
1 patentSEMICONDUCTOR ENERGY LAB
1 patentKYULUX INC
1 patentHODOGAYA CHEMICAL CO LTD
1 patentUNIV KYOTO
1 patentADACHI CHIHAYA
1 patentShowing the top 50 of 131 patents by PatentIndex Score.