UDOO
Ultralife
UMC Corporation
UNIOHM CORPORATION
UNISEM
Unisonic Technologies
United Chemi-Con
United Monolithic Semiconductors
Unity Opto Technology
Unspecified
US Sensor
US-Lasers Inc
Usha India Ltd.
U-Blox
UBIQ Semiconductor Corp
UNI-ROYAL(厚声)
UPI
UTC(友顺)
Unictron Technologies Corporation
U-NIK(旭康)
U