Assignee
Inventors
- Kazuyoshi Sotoyama (12 patents)
- Keiji Iwatsuki (4 patents)
- Teruhiko Mizota (11 patents)
- Yuzo Asano (14 patents)
- Yasutatsu Mizota (1 patents)
- Hiroaki Matsui (44 patents)
- Tetsushi Mori (2 patents)
US Patent 6673311 · Granted Jan 6, 2004