Assignee
Inventors
- Shinichi Kobayashi (231 patents)
- Shuji Watanabe (12 patents)
- Yoshitaka Kageyama (3 patents)
- Akira Nagai (130 patents)
- Osamu Yamaoka (12 patents)
- Mitsuru Nagashima (13 patents)
- Yuko Ihara (2 patents)
US Patent 6452780 · Granted Sep 17, 2002