Assignee
Inventors
- Hideshi Kuwabara (23 patents)
- Yasushi Kawasumi (11 patents)
- Tetsuo Asaba (25 patents)
- Kenji Makino (79 patents)
- Yuzo Kataoka (19 patents)
- Yasuhiro Sekine (52 patents)
- Shigeru Nishimura (37 patents)
US Patent 6156657 · Granted Dec 5, 2000