Assignee
Inventors
- Hideki Shimamoto (28 patents)
- Yoshio Miyazaki (55 patents)
- Yoichi Aoshima (2 patents)
- Tsuyoshi Tsunetsugu (1 patents)
- Hisao Nagara (9 patents)
- Yoshiteru Kuwae (3 patents)
- Kazushi Shiono (1 patents)
US Patent 4652968 · Granted Mar 24, 1987