Assignee
Inventors
- Osamu Nishimura (30 patents)
- Masanori Baba (41 patents)
- Hidekazu Sawada (10 patents)
- Naoyuki Kanzaki (32 patents)
- Ken-ichi Kuroshima (5 patents)
- Mitsuru Shiraishi (37 patents)
- Yoshio Aramaki (10 patents)
US Patent 6172061 · Granted Jan 9, 2001