Assignee
Inventors
- Ryozo Yamauchi (27 patents)
- Akira Wada (62 patents)
- Tetsuya Sakai (79 patents)
- Nobuyuki Tanaka (158 patents)
- Kensuke Shima (16 patents)
- Kenji Nishide (8 patents)
- Shigefumi Yamasaki (7 patents)
US Patent 6298183 · Granted Oct 2, 2001