Assignee
Inventors
- Kiyoko Murayama (1 patents)
- Katsuhiko Yoshida (21 patents)
- Noriyuki Iwata (42 patents)
- Hiroshi Hatano (34 patents)
- Hiroyoshi Tsuchiya (21 patents)
- Hisayuki Hirai (6 patents)
- Toshiyuki Aso (53 patents)
US Patent 6580192 · Granted Jun 17, 2003