Assignee
Inventors
- Koji Hirai (60 patents)
- Shunro Taniguchi (9 patents)
- Michihiro Ishiguro (11 patents)
- Yoshifumi Murata (9 patents)
- Shinichi Yokota (13 patents)
- Masao Ishii (18 patents)
- Noriaki Yoshimura (27 patents)
- Takayuki Okamura (24 patents)
US Patent 5070172 · Granted Dec 3, 1991