Assignee
Inventors
- Syuzo Moroto (4 patents)
- Koji Sumiya (41 patents)
- Yukihiro Kobayashi (17 patents)
- Takenori Kano (27 patents)
- Akira Hoshino (57 patents)
- Yasushi Ando (9 patents)
- Kazuaki Watanabe (70 patents)
- Yutaka Taga (145 patents)
US Patent 4807492 · Granted Feb 28, 1989