Assignee
Inventors
- Masafumi Suzaki (11 patents)
- Fumio Takahagi (4 patents)
- Katsumasa Mikami (10 patents)
- Tomoji Kitagishi (10 patents)
- Ryooichi Kobayashi (3 patents)
- Shigetaka Furukawa (6 patents)
- Akira Sasaki (198 patents)
US Patent 5094555 · Granted Mar 10, 1992