Inventor
IWAWAKI HIRONOBU
JP49 patents
⚠️ This page may combine multiple inventors who share the name “IWAWAKI HIRONOBU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
44 patentsUS7166958B2Jan 23, 2007
Light emitting device having dopant in a light emitting layer, and method of producing the light emitting device
CANON KK30 citations96
US6838818B2Jan 4, 2005
Light emitting device having a dopant in a light emitting layer and method of producing the light emitting device
CANON KK46 citations96
US7910227B2Mar 22, 2011
Light emitting device having dopants in a light emitting layer
CANON KK14 citations93
US7790299B2Sep 7, 2010
Light emitting device having dopants in a light emitting layer
CANON KK15 citations93
US7736758B2Jun 15, 2010
Light emitting device having dopants in a light emitting layer
CANON KK12 citations93
US7446471B2Nov 4, 2008
OLED provided with organic layer comprising first and second dopants based on iridium organic complex compounds
CANON KK19 citations93
US7189466B2Mar 13, 2007
Organic light-emitting element and display device
CANON KK32 citations93
US6812497B2Nov 2, 2004
Organic light emitting device
CANON KK44 citations93
US7466073B2Dec 16, 2008
Organic electroluminescent device and display apparatus
CANON KK40 citations92
US7388327B2Jun 17, 2008
Light-emitting device and display apparatus
CANON KK14 citations84
US7361414B2Apr 22, 2008
Light emitting device and display apparatus using same
CANON KK13 citations84
US6929873B2Aug 16, 2005
Electroluminescent device using metal coordination compound
CANON KK13 citations84
US7687154B2Mar 30, 2010
Light-emitting device
CANON KK13 citations83
US10868260B2Dec 15, 2020
Organic compound and photoelectric conversion element
CANON KK2 citations73
US12590112B2Mar 31, 2026
Organic compound and organic light-emitting device
CANON KK0 citations63
US11917912B2Feb 27, 2024
Organic compound, organic light-emitting element, display apparatus, photoelectric conversion apparatus, electronic apparatus, illumination apparatus, moving object, and exposure light source
CANON KK0 citations63
US11196006B2Dec 7, 2021
Organic compound and organic light-emitting element
CANON KK0 citations63
US7794855B2Sep 14, 2010
Compound and organic light-emitting element
CANON KK3 citations63
US7629062B2Dec 8, 2009
Organic light-emitting element and display device
CANON KK2 citations63
US7510783B2Mar 31, 2009
Organic light-emitting element and display device
CANON KK4 citations63
US11793074B2Oct 17, 2023
Organic compound and photoelectric conversion element
CANON KK0 citations62
US10947212B2Mar 16, 2021
Photoelectric conversion element, two-dimensional sensor, image sensor, and image pickup device
CANON KK1 citations62
US10903433B2Jan 26, 2021
Organic compound, and photoelectric conversion element and imaging device using the organic compound
CANON KK1 citations62
US9472766B2Oct 18, 2016
Fused polycyclic compound and organic light emitting element including the same
CANON KK2 citations62
US7919198B2Apr 5, 2011
Condensed ring aromatic compound for organic light-emitting device and organic light-emitting device having the same
CANON KK4 citations62
US7919197B2Apr 5, 2011
Condensed ring aromatic compound and organic light-emitting device having the same
CANON KK6 citations62
US7914907B2Mar 29, 2011
Light-emitting device
CANON KK3 citations62
US7704609B2Apr 27, 2010
Compound and organic electroluminescense device using the same
CANON KK3 citations62
US12588355B2Mar 24, 2026
Organic light-emitting element, display apparatus, photoelectric conversion apparatus, electronic equipment, lighting apparatus, moving body, and exposure light source
CANON KK0 citations52
US12565512B2Mar 3, 2026
Organic compound, organic light-emitting element, display apparatus, photoelectric conversion apparatus, electronic apparatus, illumination apparatus, moving object, and exposure light source
CANON KK0 citations52
US12557548B2Feb 17, 2026
Organic compound and organic light-emitting device
CANON KK0 citations52
US12336311B2Jun 17, 2025
Photoelectric conversion element, image pickup element, and image pickup apparatus
CANON KK0 citations52
US12317746B2May 27, 2025
Organic compound, organic light-emitting element, display apparatus, photoelectric conversion apparatus, electronic apparatus, lighting device, and moving object
CANON KK0 citations52
US11895910B2Feb 6, 2024
Organic compound and photoelectric conversion element
CANON KK0 citations52
US11557727B2Jan 17, 2023
Organic photoelectric conversion element, image pickup element, and image pickup apparatus
CANON KK0 citations52
US11555028B2Jan 17, 2023
Organic compound and photoelectric conversion element
CANON KK0 citations52
US11121182B2Sep 14, 2021
Organic photoelectric conversion element, optical area sensor, image pickup device, and image pickup apparatus
CANON KK0 citations52
US10978644B2Apr 13, 2021
Organic compound and organic photoelectric conversion element including the same
CANON KK0 citations52
US10468614B2Nov 5, 2019
Photoelectric conversion element, image pick-up element, and image pick-up apparatus
CANON KK0 citations52
US8034944B2Oct 11, 2011
Benzofluoranthene compound and organic light-emitting device using the compound
CANON KK1 citations52
US7981525B2Jul 19, 2011
Naphthalene compound and organic light-emitting device using the compound
CANON KK1 citations52
US11128791B2Sep 21, 2021
Photoelectric conversion element
CANON KK0 citations51
US10861903B2Dec 8, 2020
Organic compound and photoelectric conversion element
CANON KK0 citations42
US7799442B2Sep 21, 2010
Full-color organic el panel
CANON KK0 citations42