Assignee
Inventors
- Masayuki Nakasa (12 patents)
- Norio Ishikawa (114 patents)
- Hiroshi Hosomizu (34 patents)
- Tatsuro Izumi (11 patents)
- Keiji Yamazaki (20 patents)
- Yukio Miki (24 patents)
- Mamoru Katsuragi (5 patents)
US Patent 5089834 · Granted Feb 18, 1992