Assignee
Inventors
- Naoyoshi Machida (7 patents)
- Toshihito Ochi (2 patents)
- Hiromi Kawaguchi (3 patents)
- Mineo Ogino (6 patents)
- Masahiko Kurata (1 patents)
- Masato Tachibana (4 patents)
- Tadayuki Ichiba (3 patents)
US Patent 6122257 · Granted Sep 19, 2000