Ujiie Seiichi
Ullrich Wolfgang
Ulrich Kalus H.
Ulrich Klaus
Ulrich Klaus-H.
UltraFine Powder Technology, Inc.
Ultrafine Technologies Ltd.
UM Enginerring S.A.
Umeda Yoichi
Umekawa Akira
Umeki Takao
Umemura Tetsuya
Umezu Yoshinori
UMICORE
Underwood Timothy R.
UNI Superkom
UNIMETAL
Union Steel Corp. (of So. Africa) Ltd.
United Refractories, Inc.
United States Bronze Powders