Assignee
Inventors
- Takashi Hirano (148 patents)
- Shinichi Ohashi (19 patents)
- Satoshi Morimoto (3 patents)
- Masaru Shiraki (2 patents)
- Keishiro Tsuda (8 patents)
- Tomowo Kobayashi (13 patents)
- Shigeru Tsukagoshi (3 patents)
US Patent 4520162 · Granted May 28, 1985