Assignee
Inventors
- Toshihiro Ogawa (40 patents)
- Shoichi Nakata (5 patents)
- Yutaka Makita (1 patents)
- Masayuki Kimura (79 patents)
- Yasumasa Takeuchi (31 patents)
- Yasuo Matsuki (34 patents)
- Shin Kimura (15 patents)
US Patent 6224788 · Granted May 1, 2001