Assignee
Inventors
- Hideo Okada (54 patents)
- Masato Takeuchi (37 patents)
- Sigeru Okabe (8 patents)
- Hiroshi Tobita (24 patents)
- Shimpei Matsuda (16 patents)
- Kohki Tamura (18 patents)
- Fumito Nakajima (34 patents)
US Patent 4656735 · Granted Apr 14, 1987