Assignee
Inventors
- Tetsuji Watanabe (14 patents)
- Nobuyoshi Seki (7 patents)
- Yuichi Fujii (24 patents)
- Masatoshi Hosoi (12 patents)
- Mitsuru Ichikawa (27 patents)
- Yuji Ueno (21 patents)
- Yoshiaki Ushirogata (10 patents)
US Patent 5447298 · Granted Sep 5, 1995