Assignee
Inventors
- Katsusuke Shimazaki (40 patents)
- Susumu Imai (24 patents)
- Norio Ohta (93 patents)
- Hiroyuki Awano (32 patents)
- Masafumi Yoshihiro (23 patents)
- Hitoshi Watanabe (240 patents)
- Hiroki Takao (22 patents)
US Patent 6693854 · Granted Feb 17, 2004