Assignee
Inventors
- Eiji Sasaki (15 patents)
- Mitsuo Murata (1 patents)
- Hisashi Kobayashi (142 patents)
- Katsuro Kuroki (23 patents)
- Hisao Kitsunezaki (1 patents)
- Kengo Yoshioka (4 patents)
- Mikio Nakamura (40 patents)
US Patent 4742706 · Granted May 10, 1988