Assignee
Inventors
- Kazufumi Ishibashi (7 patents)
- Tetsuo Hattori (37 patents)
- Kiyoshi Numazaki (9 patents)
- Yasuhiro Iwaguchi (2 patents)
- Shuichi Sugai (2 patents)
- Tadaaki Nakamura (2 patents)
- Masaaki Kusano (31 patents)
US Patent 6407868 · Granted Jun 18, 2002