Assignee
Inventors
- Hiroshi Ootsuka (152 patents)
- Shigeru Wada (46 patents)
- Junichi Tanii (67 patents)
- Hiroshi Ueda (445 patents)
- Kohtaro Hayashi (70 patents)
- Masaaki Nakai (143 patents)
- Hiroyuki Okada (200 patents)
US Patent 5627622 · Granted May 6, 1997