Assignee
Inventors
- Yutaka Katou (9 patents)
- Hisaharu Goto (7 patents)
- Seiichiro Hagino (11 patents)
- Toshiyuki Nakai (4 patents)
- Mikio Furuichi (3 patents)
- Akimitsu Kamatsuka (2 patents)
- Suehiko Murata (1 patents)
US Patent 5682830 · Granted Nov 4, 1997