Assignee
Inventors
- Yoshio Irie (59 patents)
- Nobuyuki Harada (55 patents)
- Kinya Nagasuna (42 patents)
- Kohichi Hirota (1 patents)
- Yoshihiko Masuda (26 patents)
- Hideaki Nagano (12 patents)
- Hideyuki Kubo (13 patents)
US Patent 5574121 · Granted Nov 12, 1996