Assignee
Inventors
- Yasuyoshi Hirai (7 patents)
- Kazuhito Nomura (4 patents)
- Tomoatsu Makino (23 patents)
- Takahiko Yoshida (84 patents)
- Masahiro Shiozawa (8 patents)
- Atsushi Hashikawa (12 patents)
- Muneo Yorinaga (10 patents)
US Patent 6380622 · Granted Apr 30, 2002