Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839654 | System for detecting underground objects | Masaaki Ito, Shiro Odagiri, Kouji Maeda, Aiko Jitumori, Teruo Usami | 1989-06-13 |
| 4831383 | System for detecting underground objects | Hiroyasu Ohnishi, Tatsukichi Matsuura, Kouji Maeda, Akio Jitumori, Teruo Usami | 1989-05-16 |
| 4517619 | Protective relay system for a power system | — | 1985-05-14 |