Assignee
Inventors
- Minoru Kawano (25 patents)
- Tatsuro Yamashita (4 patents)
- Noboru Izu (1 patents)
- Shunsuke Shibata (6 patents)
- Norimithu Kurihara (1 patents)
- Shigeo Hara (35 patents)
- Kazuo Kojima (35 patents)
- Masashi Takezawa (3 patents)
US Patent 4945740 · Granted Aug 7, 1990