Assignee
Inventors
- Shigeo Hattori (25 patents)
- Toshiaki Yutori (10 patents)
- Nobuhiro Hara (25 patents)
- Kunihiko Nishioka (4 patents)
- Masahiko Uchimura (4 patents)
- Toshiaki Okumura (34 patents)
- Masakazu Nakao (3 patents)
US Patent 5673477 · Granted Oct 7, 1997