Assignee
Inventors
- Koichi Aikawa (9 patents)
- Tatsuro Sasamoto (17 patents)
- Susumu Yoshida (148 patents)
- Akihide Jinzenji (7 patents)
- Tomoo Sukagawa (14 patents)
- Keiji Aruga (33 patents)
- Yoshiaki Koizumi (94 patents)
- Yasuyoshi Asao (2 patents)
US Patent 6690549 · Granted Feb 10, 2004