Assignee
Inventors
- Noriyoshi Inukai (1 patents)
- Masuo Murakami (6 patents)
- Hidenori Iwamoto (6 patents)
- Isao Yanagisawa (23 patents)
- Toshinari Tamura (13 patents)
- Yoshio Ishii (5 patents)
- Kenichi Tomioka (16 patents)
- Tetsuya Shiozaki (11 patents)
US Patent 4246280 · Granted Jan 20, 1981