Assignee
Inventors
- Akiyasu Okamoto (6 patents)
- Kimishiro Tokuda (16 patents)
- Koutaro Fujimura (13 patents)
- Hachiro Kawashima (5 patents)
- Shouichi Kai (3 patents)
- Tadashi Gengo (12 patents)
- Kouichi Sakamoto (14 patents)
US Patent 6024030 · Granted Feb 15, 2000