Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5757614 | Gas insulated switchgear apparatus | Masaki Hachida, Hirohiko Yatsuzuka, Takanobu Aoyama | 1998-05-26 |
| 5754382 | Gas insulated switchgear and power transmission system using the switchgear | Takanobu Aoyama | 1998-05-19 |