Inventor
MASUI HISASHI
US39 patents
⚠️ This page may combine multiple inventors who share the name “MASUI HISASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LUMILEDS LLC
26 patentsUS10128419B1Nov 13, 2018
Method of manufacturing a light emitting device
LUMILEDS LLC7 citations81
US11621292B2Apr 4, 2023
Ultra-smooth sidewall pixelated array LEDs
LUMILEDS LLC1 citations72
US11127887B2Sep 21, 2021
Semiconductor light emitting device with reflective side coating
LUMILEDS LLC2 citations72
US11063191B2Jul 13, 2021
Forming a multicolor phosphor-converted LED array
LUMILEDS LLC2 citations72
US12019017B2Jun 25, 2024
Gas sensing with porous scattering material
LUMILEDS LLC2 citations71
US11486562B2Nov 1, 2022
Controlling off-state appearance of a light emitting device
LUMILEDS LLC2 citations70
US12507520B2Dec 23, 2025
Ultra-smooth sidewall pixelated array LEDs
LUMILEDS LLC0 citations62
US12027567B2Jul 2, 2024
Pixelated LED array with optical elements
LUMILEDS LLC0 citations62
US11901702B2Feb 13, 2024
LED DBR structure with reduced photodegradation
LUMILEDS LLC0 citations62
US11749786B2Sep 5, 2023
Multicolor phosphor-converted LED array
LUMILEDS LLC0 citations62
US11749787B2Sep 5, 2023
Forming a multicolor phosphor-converted LED array
LUMILEDS LLC0 citations62
US11480315B2Oct 25, 2022
Phosphor with light barriers
LUMILEDS LLC0 citations62
US11411147B2Aug 9, 2022
Monolithic LED array structure
LUMILEDS LLC0 citations62
US10903266B2Jan 26, 2021
Ultra-smooth sidewall pixelated array LEDs
LUMILEDS LLC0 citations62
US10886703B1Jan 5, 2021
LED DBR structure with reduced photodegradation
LUMILEDS LLC1 citations62
US11973069B2Apr 30, 2024
Fabrication of LED arrays and LED array light engines
LUMILEDS LLC0 citations61
US11740179B2Aug 29, 2023
Gas sensing system having quadric reflective surface
LUMILEDS LLC0 citations61
US11994285B2May 28, 2024
Controlling off-state appearance of a light emitting device
LUMILEDS LLC0 citations59
US12158418B2Dec 3, 2024
Gas sensors using non-dispersive infrared materials
LUMILEDS LLC0 citations56
US11725802B2Aug 15, 2023
Phosphor with light barriers
LUMILEDS LLC0 citations52
US11217734B2Jan 4, 2022
Patterned lumiramic for improved PCLED stability
LUMILEDS LLC0 citations52
US10854794B2Dec 1, 2020
Monolithic LED array structure
LUMILEDS LLC0 citations51
US10854795B2Dec 1, 2020
Method of manufacturing a light emitting device
LUMILEDS LLC0 citations49
US10797206B2Oct 6, 2020
Controlling off-state appearance of a light emitting device
LUMILEDS LLC0 citations49
US10411171B2Sep 10, 2019
Method of manufacturing a light emitting device
LUMILEDS LLC0 citations49
US12209957B2Jan 28, 2025
Multi-gas sensors using non-dispersive infrared materials
LUMILEDS LLC0 citations45
UNIV CALIFORNIA
6 patentsUS7994527B2Aug 9, 2011
High light extraction efficiency light emitting diode (LED)
UNIV CALIFORNIA46 citations92
US7518159B2Apr 14, 2009
Packaging technique for the fabrication of polarized light emitting diodes
UNIV CALIFORNIA20 citations92
US8044417B2Oct 25, 2011
Enhancement of optical polarization of nitride light-emitting diodes by increased indium incorporation
UNIV CALIFORNIA6 citations74
US7723746B2May 25, 2010
Packaging technique for the fabrication of polarized light emitting diodes
UNIV CALIFORNIA5 citations74
US7839903B2Nov 23, 2010
Optimization of laser bar orientation for nonpolar and semipolar (Ga,Al,In,B)N diode lasers
UNIV CALIFORNIA2 citations63
US9951912B2Apr 24, 2018
Tunable white light based on polarization sensitive light-emitting diodes
UNIV CALIFORNIA0 citations51