Assignee
Inventors
- Gijsbert J. Van Den Enden (40 patents)
- Johannes Hendrikus Maria Spruit (54 patents)
- Johannus Bakx (21 patents)
- Shoei Kobayashi (105 patents)
- Masayuki Arai (68 patents)
- Yoshiyuki Akiyama (44 patents)
US Patent 6580680 · Granted Jun 17, 2003