Assignee
Inventors
- Fumiyasu Toyama (1 patents)
- Masaaki Murakoshi (1 patents)
- Masanori Wakuda (6 patents)
- Junichi Sasaki (60 patents)
- Hirotoshi Watanabe (30 patents)
- Tomio Yukawa (1 patents)
- Yoshihiko Okayama (6 patents)
US Patent 4550366 · Granted Oct 29, 1985