Assignee
Inventors
- Tsutomu Okusawa (12 patents)
- Kazuhito Koyama (23 patents)
- Masahiko Yamagishi (40 patents)
- Shigeo Hatamiya (42 patents)
- Taiko Ajiro (6 patents)
- Megumi Sunou (5 patents)
- Yukio Ishigaki (11 patents)
- Kenji Tokunaga (22 patents)
US Patent 6688106 · Granted Feb 10, 2004