Assignee
Inventors
- Ken Nakamura (68 patents)
- Tadashi Nagai (20 patents)
- Giichi Shioyama (10 patents)
- Yutaka Matayoshi (32 patents)
- Eiichi Ohnishi (5 patents)
- Junichi Yokoyama (30 patents)
- Atsushi Yonezawa (5 patents)
US Patent 4517134 · Granted May 14, 1985