Assignee
Inventors
- Shingo Abe (47 patents)
- Tetsuya Inui (72 patents)
- Hirotsugu Matoba (34 patents)
- Susumu Hirata (25 patents)
- Yorishige Ishii (38 patents)
- Kuniaki Okada (41 patents)
- Hideaki Fujita (78 patents)
US Patent 6002661 · Granted Dec 14, 1999