Assignee
Inventors
- Tsutomu Minami (13 patents)
- Masahiro Tatsumisago (23 patents)
- Kiyoharu Tadanaga (10 patents)
- Atsunori Matsuda (12 patents)
- Mitsuhiro Kawadu (2 patents)
- Koichiro Nakamura (62 patents)
- Hiroaki Yamamoto (334 patents)
US Patent 6723487 · Granted Apr 20, 2004