Assignee
Inventors
- Yoshiharu Takeuchi (22 patents)
- Kiyoji Aburaya (7 patents)
- Toshiharu Yasu (10 patents)
- Masahiro Tsubokawa (15 patents)
- Manabu Sakai (39 patents)
- Shoji Aoshika (4 patents)
- Tsutayoshi Narita (4 patents)
US Patent 6227828 · Granted May 8, 2001