Inventor
KAWASUMI TAKAYUKI
JP18 patents
⚠️ This page may combine multiple inventors who share the name “KAWASUMI TAKAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
12 patentsUS5732099AMar 24, 1998
Semiconductor light emitting device
SONY CORP26 citations92
US6233266B1May 15, 2001
Light emitting device
SONY CORP33 citations91
US6084251AJul 4, 2000
Semiconductor light emitting device with carrier diffusion suppressing layer
SONY CORP11 citations73
US9966500B2May 8, 2018
Semiconductor optical device and display device
SONY CORP2 citations72
US10320146B2Jun 11, 2019
Semiconductor light-emitting element, manufacturing method of semiconductor light-emitting element, and semiconductor device
SONY CORP1 citations62
US7332744B2Feb 19, 2008
Semiconductor light-emitting device and method of manufacturing the same
SONY CORP2 citations58
US10541511B2Jan 21, 2020
Semiconductor light-emitting element, manufacturing method of semiconductor light-emitting element, and semiconductor device
SONY CORP0 citations51
US9368685B2Jun 14, 2016
Semiconductor light emitting device, method of manufacturing the same, image display device, and electronic apparatus
SONY CORP0 citations51
US9153935B2Oct 6, 2015
Electronic unit, optcal disk knit, display unit, and image pickup unit
SONY CORP1 citations51
US10672944B2Jun 2, 2020
Active layer structure, semiconductor light emitting element, and display apparatus
SONY CORP0 citations41
US10540916B2Jan 21, 2020
Semiconductor light-emitting device, display unit, and electronic apparatus
SONY CORP0 citations41
US10490692B2Nov 26, 2019
Semiconductor light-emitting device and display apparatus
SONY CORP0 citations41
SONY SEMICONDUCTOR SOLUTIONS CORP
4 patentsUS12068581B2Aug 20, 2024
Surface-emitting semiconductor laser
SONY SEMICONDUCTOR SOLUTIONS CORP0 citations62
US11923661B2Mar 5, 2024
Surface emitting laser and method of manufacturing the same
SONY SEMICONDUCTOR SOLUTIONS CORP0 citations62
US11652333B2May 16, 2023
Surface-emitting semiconductor laser
SONY SEMICONDUCTOR SOLUTIONS CORP0 citations62
US11271368B2Mar 8, 2022
Semiconductor laser and electronic apparatus
SONY SEMICONDUCTOR SOLUTIONS CORP0 citations62