Assignee
Inventors
- Yoichi Kawashima (27 patents)
- Ken-ichi Fujimura (10 patents)
- Hiroshi Suhara (18 patents)
- Noriyoshi Yamamoto (7 patents)
- Hiromi Matsumoto (1 patents)
- Nobuaki Miyawaki (3 patents)
- Yuko Fujita (2 patents)
US Patent 5968980 · Granted Oct 19, 1999