Assignee
Inventors
- Eiji Okamura (21 patents)
- Tatsuya Gofuku (3 patents)
- Chihiro Ono (22 patents)
- Kazuhide Ohba (6 patents)
- Atsushi Satoh (27 patents)
- Eisaku Takahashi (24 patents)
- Takashi Tokairin (8 patents)
- Isao Suda (3 patents)
US Patent 6137646 · Granted Oct 24, 2000