Assignee
Inventors
- Takehiko Yoshie (4 patents)
- Masanori Sasaki (22 patents)
- Hiroshi Shibafuchi (6 patents)
- Yasushi Imai (16 patents)
- Masahiro Murotani (10 patents)
- Kenichi Ishii (77 patents)
- Hajime Mura (2 patents)
US Patent 5714617 · Granted Feb 3, 1998