Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689088 | Gas insulated device, gas insulated switchgear, gas insulated bus line, and cable direct-coupled gas insulated switchgear | Toshiaki Rokunohe, Fumihiro Endo, Tokio Yamagiwa | 1997-11-18 |