Assignee
Inventors
- Hiroyuki Matsuda (71 patents)
- Hiroyasu Kumamoto (5 patents)
- Eiko Tamai (6 patents)
- Misao Yagi (12 patents)
- Kenichi Yamamoto (126 patents)
- Toshimitsu Hagiwara (59 patents)
- Shinya Watanabe (194 patents)
US Patent 6759557 · Granted Jul 6, 2004