Assignee
Inventors
- Minoru Niwa (30 patents)
- Kimio Muramatsu (5 patents)
- Makoto Kanai (40 patents)
- Michio Inoue (93 patents)
- Junichi Mizutani (11 patents)
- Takanori Kantoh (6 patents)
- Tadashi Yamamoto (183 patents)
US Patent 5971430 · Granted Oct 26, 1999