Assignee
Inventors
- Shingo Matsumura (15 patents)
- Masahiro Kise (12 patents)
- Masakuni Ozaki (9 patents)
- Shinichi Tada (2 patents)
- Kenji Kazuno (6 patents)
- Hisao Watanabe (9 patents)
- Katsutoshi Kunimoto (2 patents)
- Masami Tsuda (6 patents)
US Patent 4426381 · Granted Jan 17, 1984