Assignee
Inventors
- Toshiyuki Ochiai (12 patents)
- Yosuke Furukawa (1 patents)
- Yutaka Tanaka (169 patents)
- Kozo Kimura (33 patents)
- Makoto Hirai (48 patents)
- Tokuzo Kiyohara (55 patents)
- Hideshi Nishida (36 patents)
US Patent 6340973 · Granted Jan 22, 2002