Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684249 | Ground vibration properties detection method and equipment thereof | Yorimasa Abe, Kiyotaka Hisano, Kazuhiro Yamamoto | 1997-11-04 |
| 5667545 | Filter element for air cleaner and method of manufacturing the same | Hideki Inaba | 1997-09-16 |
| 5652760 | Error rate measuring apparatus | Syugo Yamashita, Yoshikazu Tomida, Terumasa Tokumoto, Toshihiro Kubo | 1997-07-29 |