Assignee
Inventors
- Syuno Kumagai (2 patents)
- Junichi Saita (3 patents)
- Yoji Ushiki (4 patents)
- Kunio Kishino (4 patents)
- Shoji Sato (49 patents)
- Yoshiki Ishige (17 patents)
- Tuneo Ishihara (3 patents)
- Hisashi Masuda (32 patents)
US Patent 5178425 · Granted Jan 12, 1993