Assignee
Inventors
- Chiaki Nakayama (6 patents)
- Kuniaki Shinohara (7 patents)
- Takanori Matsuno (4 patents)
- Toshio Koguro (8 patents)
- Hiroshi Tsuboi (17 patents)
- Yukihiro Fukuda (12 patents)
- Naoki Sato (129 patents)
US Patent 5730149 · Granted Mar 24, 1998