Assignee
Inventors
- Hajime Fujimura (15 patents)
- Yasuzo Hiramatsu (6 patents)
- Takahiro Yabuuchi (10 patents)
- Masakatu Hisaki (7 patents)
- Katsuo Takikawa (8 patents)
- Takaji Honna (15 patents)
- Hidekazu Miyake (11 patents)
- Makoto Kajitani (22 patents)
US Patent 4293713 · Granted Oct 6, 1981