Assignee
Inventors
- Keizo Takayanagi (4 patents)
- Yasuhide Tanaka (2 patents)
- Tasuke Kawabata (1 patents)
- Fujio Nakamura (1 patents)
- Yukio Morita (27 patents)
- Shigeto Negi (38 patents)
- Takeo Kanai (9 patents)
- Unknown
US Patent 4433142 · Granted Feb 21, 1984