Assignee
Inventors
- Masahiro Funada (75 patents)
- Kenichi Ohta (22 patents)
- Yutaka Udagawa (24 patents)
- Yoichi Takaragi (46 patents)
- Mitsuru Kurita (53 patents)
- Eiji Ohta (71 patents)
- Koichi Ishimoto (22 patents)
US Patent 6346989 · Granted Feb 12, 2002