Assignee
Inventors
- Michio Hirabayashi (7 patents)
- Syuuichi Taga (1 patents)
- Yoshiaki Tsurui (1 patents)
- Katsuhiro Ikeda (7 patents)
- Tsutomu Takada (9 patents)
- Shigeru Tsujimura (3 patents)
- Masaaki Yamazaki (1 patents)
- Hirokazu Mukai (9 patents)
US Patent 6545575 · Granted Apr 8, 2003