Assignee
Inventors
- Yasunobu Fujita (13 patents)
- Masao Yamamoto (117 patents)
- Kouichi Hachiya (3 patents)
- Atsushi Yokouchi (33 patents)
- Toshikazu Yabe (47 patents)
- Emiko Shiraishi (41 patents)
- Michiharu Naka (35 patents)
US Patent 6880978 · Granted Apr 19, 2005