Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10926973 | Elevator shaft dimensions measurement device and elevator shaft dimensions measurement method | Ryosuke KAWANISHI, Keisuke SAMBONGI, Yu ENOMOTO, Yuichi Taguchi, Jay Thornton | 2021-02-23 |
| 10620131 | Detection apparatus and detection method | Junji Kondo, Megumi Irie | 2020-04-14 |
| 9966753 | Power switching device operating time prediction equipment and method | Shoichi Kobayashi, Masahiro Shikai, Tomohito Mori | 2018-05-08 |
| 9263213 | Power switching control device and closing control method thereof | Tomohito Mori, Daigo Matsumoto | 2016-02-16 |
| 8779634 | Transformer inrush current suppression apparatus with function of determining target closing phase of three-phase transformer based on pre-arc characteristic and variation in closing time of the three-phase circuit breaker | Takashi Hirai | 2014-07-15 |
| 8093885 | Residual magnetic flux determining apparatus | Takashi Hirai, Haruhiko Kohyama, Kenji Kamei | 2012-01-10 |
| 7902696 | Controlled switching device | Takashi Hirai, Haruhiko Kohyama, Kenji Kamei | 2011-03-08 |
| 7095139 | Transformer inrush current elimination system | Takashi Hirai, Haruhiko Kohyama, Hiroki Ito | 2006-08-22 |
| 6433980 | Controlled switching device | Takashi Hirai | 2002-08-13 |