Assignee
Inventors
- Naoto Hirao (12 patents)
- Yoshihiro Tonomoto (23 patents)
- Toshimasa Toyama (14 patents)
- Masaaki Ohyama (10 patents)
- Mituaki Ono (2 patents)
- Kiyoshi Chinzei (21 patents)
- Katsumi Adachi (170 patents)
US Patent 5887236 · Granted Mar 23, 1999