Assignee
Inventors
- Hiroshi Sonoda (14 patents)
- Kazunari Okada (4 patents)
- Akira Takahashi (12 patents)
- Kouki Fukumura (10 patents)
- Hidetoshi Hayashi (57 patents)
- Teruyuki Nagata (71 patents)
- Yasuhiro Takano (17 patents)
US Patent 6458990 · Granted Oct 1, 2002