Assignee
Inventors
- Yoshito Yoshimura (6 patents)
- Noboru Oshima (42 patents)
- Isamu Shimizu (92 patents)
- Shinsuke Yamaguchi (34 patents)
- Tatsuo Fujimaki (31 patents)
- Tomoharu Yamada (11 patents)
- Seisuke Tomita (38 patents)
US Patent 4519431 · Granted May 28, 1985