Assignee
Inventors
- Yoshiaki Nagashima (12 patents)
- Kenichi Fujiwara (72 patents)
- Masao Sato (55 patents)
- Fuminobu Takahashi (27 patents)
- Masahiro Koike (66 patents)
- Hajime Umehara (12 patents)
- Yoshihiro Michiguchi (7 patents)
US Patent 5663502 · Granted Sep 2, 1997