Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8981761 | Partial discharge detector for gas-insulated electric apparatus | Shiro Maruyama, Toshihiro Hoshino | 2015-03-17 |
| 7746082 | Partial discharge detection device | Shiro Maruyama, Toshihiro Hoshino | 2010-06-29 |
| 6522247 | Apparatus monitoring system and apparatus monitoring method | Shiro Maruyama, Kyoichi Uehara, Masayuki Akazaki | 2003-02-18 |
| 5895311 | Abrasive device that maintains normal line of contact with curved abrasive surface and method of using same | Takekazu Shiotani, Kimihiro Wakabayashi, Kazutoshi Hamada, Toshimasa Fujisawa | 1999-04-20 |
| 5200737 | System and method for detecting partial discharge of gas-insulated switchgear | Katsumi Konishi | 1993-04-06 |
| 4404423 | Three-phase gas insulated bus | Yoshihiro Kanno | 1983-09-13 |