Assignee
Inventors
- Shouichi Hiraga (3 patents)
- Masashi Kawasaki (4 patents)
- Atsushi Akao (6 patents)
- Asayuki Kamatani (2 patents)
- Masayuki Hagiwara (1 patents)
- Toshiaki Mase (22 patents)
- Fumio Nakano (13 patents)
US Patent 6790836 · Granted Sep 14, 2004