Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6469270 | Gas insulated switchgear | Takashi Omori, Toyokazu Tanaka, Katsuyuki Takada | 2002-10-22 |
| 5559669 | Compressed gas insulation switchgear | Yoshiaki Inami, Toyokazu Tanaka | 1996-09-24 |