Assignee
Inventors
- Naotake Ohta (2 patents)
- Masahiro Yotsumoto (4 patents)
- Haruo Nishino (9 patents)
- Hiroshi Tanahashi (5 patents)
- Hajime Kato (154 patents)
- Toshiaki Tazawa (4 patents)
- Hideo Noda (61 patents)
- Yuzuru Wakabayashi (4 patents)
US Patent 4798131 · Granted Jan 17, 1989