Assignee
Inventors
- Kenichi Hamayasu (1 patents)
- Tetsuya Ito (9 patents)
- Koki Fujita (12 patents)
- Kozo Hara (15 patents)
- Kyoko Koizumi (7 patents)
- Toshiko Tanimoto (1 patents)
- Hirofumi Nakano (33 patents)
- Sumio Kitahata (13 patents)
US Patent 5763598 · Granted Jun 9, 1998