Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9116176 | Optical current transformer for gas-insulated apparatus | Wei Zhang, Masashi Kawamata, Hiroyuki Nakamichi, Tatsushi Yamaguchi | 2015-08-25 |
| 8847084 | Insulating spacer with built-in optical fiber | Wei Zhang, Masashi Kawamata, Tatsushi Yamaguchi | 2014-09-30 |