Inventor
NAGAO KEI
JP10 patents
Patents
10 patentsUS9815401B2Nov 14, 2017
Apparatus for driving light emitting device
ROHM CO LTD2 citations72
US10622349B2Apr 14, 2020
Semiconductor device
ROHM CO LTD4 citations71
US7659873B2Feb 9, 2010
Current control circuit, LED current control apparatus, and light emitting apparatus
ROHM CO LTD7 citations69
US12470444B2Nov 11, 2025
Semiconductor device and communication system
ROHM CO LTD0 citations59
US11874694B2Jan 16, 2024
Semiconductor device and semiconductor device system
ROHM CO LTD1 citations59
US12452974B2Oct 21, 2025
Light emitting element driving device
ROHM CO LTD0 citations51
US9949333B2Apr 17, 2018
Semiconductor device
ROHM CO LTD1 citations51
US11395384B2Jul 19, 2022
Light emitting device driving apparatus, light emitting device driving system and light emitting system
ROHM CO LTD0 citations50
US12549409B2Feb 10, 2026
Semiconductor device and communication system for updating setting data of multiple channels
ROHM CO LTD0 citations49
US12193129B2Jan 7, 2025
Light emitting element driving device
ROHM CO LTD0 citations49