Inventor
OHRUI HIROKI
JP42 patents
⚠️ This page may combine multiple inventors who share the name “OHRUI HIROKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
32 patentsUS7875368B2Jan 25, 2011
Heterocyclic compound and organic light-emitting device
CANON KK7 citations84
US11591279B2Feb 28, 2023
Composition, organic light-emitting device, display device, photoelectric conversion apparatus, electronic apparatus, and moving object including the composition
CANON KK2 citations73
US10868260B2Dec 15, 2020
Organic compound and photoelectric conversion element
CANON KK2 citations73
US10854821B2Dec 1, 2020
Organic light emitting device
CANON KK2 citations72
US10032987B2Jul 24, 2018
Organic light emitting element
CANON KK5 citations72
US9818957B2Nov 14, 2017
Organic light emitting element
CANON KK2 citations72
US9705089B2Jul 11, 2017
Organic light emitting element
CANON KK2 citations72
US7977869B2Jul 12, 2011
Organic luminescent device and benzo[k]fluoranthene compound
CANON KK3 citations63
US12172942B2Dec 24, 2024
Composition, organic light-emitting device, display device, photoelectric conversion apparatus, electronic apparatus, and moving object including the composition
CANON KK0 citations62
US11964930B2Apr 23, 2024
Organic compound and organic light-emitting element
CANON KK0 citations62
US11807593B2Nov 7, 2023
Organic compound, organic light-emitting element, display apparatus, image pickup apparatus, lighting apparatus, and moving object
CANON KK0 citations62
US11793074B2Oct 17, 2023
Organic compound and photoelectric conversion element
CANON KK0 citations62
US11139435B2Oct 5, 2021
Organic light emitting 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
US12338254B2Jun 24, 2025
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
US12172941B2Dec 24, 2024
Organic compound and organic light-emitting device
CANON KK0 citations52
US11895910B2Feb 6, 2024
Organic compound and photoelectric conversion element
CANON KK0 citations52
US11844268B2Dec 12, 2023
Organic compound and organic light-emitting 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
US11128791B2Sep 21, 2021
Photoelectric conversion element
CANON KK0 citations51
US10861903B2Dec 8, 2020
Organic compound and photoelectric conversion element
CANON KK0 citations42
OHRUI HIROKI
4 patentsUS8431244B2Apr 30, 2013
Indenochrysene derivative and organic light-emitting device using same
OHRUI HIROKI4 citations61
US8072137B2Dec 6, 2011
Fused heterocyclic compound and organic light emitting device
OHRUI HIROKI2 citations61
US8952873B2Feb 10, 2015
Fused polycyclic compound and organic light-emitting device using the compound
OHRUI HIROKI0 citations50
US8173275B2May 8, 2012
Azaindenochrysene derivative and organic light-emitting device
OHRUI HIROKI0 citations40