A. P. Green Refractor
ABB Cerama AB
Abramovici Rudolf
Abrash Muriel
Adachi Ryusuke
Adachi Takaji
Adasch Gunter
Advanced Mineral Research
Akyurek Altan
Ali M. Akbar
AlSiMag Technical Ceramics, Inc.
Ambe Satoshi
Anderssen Tore
Andersson Clarence A.
Andersson Curt
Andrejcak Michael J.
Anisimov Jury V.
Aotsu Shinichi
Aozasa Shigeru
Arrol William J.