Assignee
Inventors
- Ikuo Nakamura (9 patents)
- Hiroshi Morimoto (102 patents)
- Tetsuya Kokubo (2 patents)
- Minoru Iwasaki (12 patents)
- Toshihiro Kiuchi (6 patents)
- Zenji Imamura (1 patents)
- Syoji Okamoto (1 patents)
- Katsutoshi Tsushima (1 patents)
US Patent 6158228 · Granted Dec 12, 2000