Assignee
Inventors
- Souta Nemoto (2 patents)
- Kazutoshi Yoshida (13 patents)
- Masao Uehara (44 patents)
- Noboru Hoshino (5 patents)
- Yoshiaki Nakamura (79 patents)
- Masayoshi Fujieda (4 patents)
- Koji Hiraga (5 patents)
US Patent 6697137 · Granted Feb 24, 2004