Assignee
Inventors
- Kyoichi Kagawa (7 patents)
- Chizuko Fukuhama (6 patents)
- Hisako Matsutaka (3 patents)
- Toyoo Nakamura (5 patents)
- Masahiro Numata (6 patents)
- Shigeaki Watanabe (4 patents)
- Kazuhisa Honda (2 patents)
US Patent 6046168 · Granted Apr 4, 2000