Assignee
Inventors
- Shinji Shirasaki (6 patents)
- Yoshihiko Tsuzuki (24 patents)
- Yuzi Hirabayashi (7 patents)
- Hiroshi Okazaki (115 patents)
- Masahiro Matsuyama (9 patents)
- Masanobu Kobayashi (61 patents)
- Yoji Ito (75 patents)
US Patent 4442424 · Granted Apr 10, 1984