Assignee
Inventors
- Yoshiyuki Nagai (8 patents)
- Atsushi Kato (142 patents)
- Fukashi Murai (5 patents)
- Makoto Asakawa (4 patents)
- Tsuneaki Sakata (7 patents)
- Mamoru Hasegawa (55 patents)
- Tatsuo Shioda (6 patents)
US Patent 6645760 · Granted Nov 11, 2003