Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10155916 | Lubricant for gas insulated switchgear, and gas insulated switchgear | Takayuki Nakakawaji, Hiroyuki Akata, Kazuhiro Satou, Makoto Hirose | 2018-12-18 |
| 10113933 | Leakage oil detector system and method | Li Lu, Toshiaki Rokunohe, Jun Nukaga, Akira YAMAGISHI, Yasutomo Saito | 2018-10-30 |
| 9898830 | Oil leakage detector and oil leakage detection method | Li Lu, Satoshi Ichimura, Jun Nukaga, Toshiaki Rokunohe, Akira YAMAGISHI +1 more | 2018-02-20 |