Assignee
Inventors
- Yukio Serizawa (9 patents)
- Osami Matsushita (16 patents)
- Motohiro Shiga (6 patents)
- Masatsune Sutou (2 patents)
- Hiroaki Hata (31 patents)
- Koichi Sekiguchi (30 patents)
- Yuukichi Nakada (2 patents)
US Patent 5230616 · Granted Jul 27, 1993