Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8975550 | Switch unit and switchgear | Takashi Sato, Tomoaki Utsumi, Takashi Shirone, Kazuhiro Satou, Takafumi Hosono | 2015-03-10 |
| 8576545 | Switchgear | Keiichi Takahashi, Kenji Tsuchiya, Ayumu Morita, Masato Kobayashi | 2013-11-05 |
| 8411418 | Vacuum insulated switchgear | Shuichi Kikukawa, Kenji Tsuchiya, Yuuko Kajiyama | 2013-04-02 |
| 8304678 | Vacuum insulated switch-gear and its height adjusting method | Shuichi Kikukawa, Kenji Tsuchiya, Yuko Kajiyama | 2012-11-06 |
| 8168909 | Vacuum switchgear | Masato Kobayashi, Kenji Tsuchiya | 2012-05-01 |
| 8008594 | Vacuum insulated switchgear | Takuya Kurogi, Kenji Tsuchiya | 2011-08-30 |
| 7223932 | Vacuum Switchgear | Masato Kobayashi, Kenji Tsuchiya, Satoru Kajiwara, Hironori Tonosaki | 2007-05-29 |
| 7135652 | Vacuum switchgear | Masato Kobayashi, Kenji Tsuchiya, Satoru Kajiwara, Hironori Tonosaki | 2006-11-14 |