Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366479 | Control information communication method and system through a common signal transmission line | Hirokazu Ihara | 1982-12-28 |
| 4354267 | Data transmission system utilizing loop transmission lines between terminal units | Hirokazu Ihara, Makoto Nohmi | 1982-10-12 |