Assignee
Inventors
- Yoshihiro Yamamura (12 patents)
- Nobushige Akita (1 patents)
- Shigeru Yamaguchi (89 patents)
- Seisuke Ohba (3 patents)
- Hideo Murata (10 patents)
- Tetsuya Itano (134 patents)
- Kazuhiro Niino (1 patents)
US Patent 5880815 · Granted Mar 9, 1999