Assignee
Inventors
- Yoshiya Matsumoto (22 patents)
- Shigeo Nonoyama (7 patents)
- Tetsuya Takei (45 patents)
- Nobuo Kuwabara (48 patents)
- Hiroshi Kera (6 patents)
- Takefumi Takahashi (24 patents)
- Yoshio Yamaguchi (42 patents)
- Akira Nagahara (13 patents)
US Patent 6128463 · Granted Oct 3, 2000