Assignee
Inventors
- Masayuki Yamada (234 patents)
- Takao Inukai (11 patents)
- Masataka Kikuchi (12 patents)
- Joji Kaneko (2 patents)
- Satoru Asai (34 patents)
- Yoichi Tsuda (17 patents)
- Ryuichi Ishii (26 patents)
- Yomei Yoshioka (12 patents)
US Patent 6499946 · Granted Dec 31, 2002