Assignee
Inventors
- Nobushi Iwashita (4 patents)
- Etsuro Machida (5 patents)
- Masahiro Hiruta (5 patents)
- Kazuhiro Matsumoto (135 patents)
- Yoshitaka Abe (22 patents)
- Tadahiko Yanashima (6 patents)
- Kenichi Hayakawa (21 patents)
US Patent 5758649 · Granted Jun 2, 1998