Assignee
Inventors
- Toshihiko Tanaka (181 patents)
- Makoto Kasami (1 patents)
- Kouji Maeta (2 patents)
- Norimitsu Kobayashi (3 patents)
- Shoji Iwasaki (9 patents)
- Jouji Yamada (11 patents)
- Akinori Matsushita (1 patents)
US Patent 6121945 · Granted Sep 19, 2000