Assignee
Inventors
- Masahiro Shindo (29 patents)
- Daisuke Kosaka (17 patents)
- Tetsuo Hikawa (19 patents)
- Akira Takata (37 patents)
- Yukihiro Ukai (12 patents)
- Takashi Sawada (122 patents)
- Toshifumi Asakawa (20 patents)
US Patent 6137120 · Granted Oct 24, 2000