Assignee
Inventors
- Toshikatsu Mori (8 patents)
- Seizi Takeuchi (15 patents)
- Shimpei Matsuda (16 patents)
- Teruo Kumagi (1 patents)
- Akira Kato (407 patents)
- Hisao Yamashita (43 patents)
- Masato Takeuchi (37 patents)
US Patent 4578112 · Granted Mar 25, 1986