Assignee
Inventors
- Taizo Shimada (5 patents)
- Osamu Miyata (55 patents)
- Tomoaki Tajima (2 patents)
- Shigeo Yazawa (2 patents)
- Toshio Tsuda (18 patents)
- Shuichi Komuro (6 patents)
- Eiji Mizote (3 patents)
- Tomomi Nakagawa (3 patents)
US Patent 4909210 · Granted Mar 20, 1990