Assignee
Inventors
- Masamitsu Takeuchi (3 patents)
- Kazunori Ikei (12 patents)
- Tadao Karakama (23 patents)
- Mitsumasa Akashi (19 patents)
- Teruo Akiyama (43 patents)
- Jun Maruyama (38 patents)
- Keisuke Taka (7 patents)
US Patent 5622206 · Granted Apr 22, 1997