Assignee
Inventors
- Hiroyuki Ohnishi (2 patents)
- Shingo Koyama (26 patents)
- Ryoichi Nanba (8 patents)
- Syozo Miyaoka (2 patents)
- Akira Masuda (8 patents)
- Yoshiyuki Shikata (3 patents)
- Hideto Ushijima (3 patents)
- Seiitsu Murota (5 patents)
US Patent 5130483 · Granted Jul 14, 1992