Assignee
Inventors
- Katsumi Tada (33 patents)
- Kazuhiro Hashimoto (36 patents)
- Shigeru Kameda (9 patents)
- Noriyuki Yamasaki (17 patents)
- Yoshiki Matsuda (19 patents)
- Tetsuya Hashimoto (39 patents)
- Akio Azuma (6 patents)
US Patent 5887171 · Granted Mar 23, 1999