Assignee
Inventors
- Keiichi Kurakazu (34 patents)
- Yoshikazu Aoto (5 patents)
- Shiro Baba (61 patents)
- Satoshi Masuda (123 patents)
- Hiroyuki Kida (22 patents)
- Shinji Kawashima (22 patents)
- Yoshiaki Naruse (3 patents)
US Patent 5644703 · Granted Jul 1, 1997