Assignee
Inventors
- Tomio Kobayashi (16 patents)
- Heikichi Sato (11 patents)
- Hideaki Ojima (8 patents)
- Akira Urai (6 patents)
- Akira Murakami (95 patents)
- Yoshito Ikeda (56 patents)
- Mitsuaki Yokomizo (1 patents)
- Toshiyuki Okada (6 patents)
US Patent 5276575 · Granted Jan 4, 1994