Assignee
Inventors
- Masataka Shiba (39 patents)
- Kenji Watanabe (472 patents)
- Toshimitsu Hamada (21 patents)
- Seiji Ishikawa (76 patents)
- Naoki Go (1 patents)
- Toshiaki Yachi (2 patents)
- Tetsuya Watanabe (211 patents)
- Takahiro Jingu (66 patents)
US Patent 6002989 · Granted Dec 14, 1999