Assignee
Inventors
- Yoshinobu Nakagawa (11 patents)
- Susumu Inatsugu (10 patents)
- Masaaki Yamabayashi (7 patents)
- Kazuji Ota (2 patents)
- Yoshiharu Abe (46 patents)
- Koji Sako (14 patents)
- Naoyuki Yayama (1 patents)
US Patent 6147661 · Granted Nov 14, 2000