Assignee
Inventors
- Daisuke Fujii (16 patents)
- Eiichi Sugisaki (4 patents)
- Amiko Chihara (3 patents)
- Akihiro Yoshimura (17 patents)
- Shigeru Yamakawa (1 patents)
- Unknown
- Kumiko Nagai (1 patents)
- Mitsuhiro Ino (2 patents)
US Patent 5905520 · Granted May 18, 1999