Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9434579 | Elevator device and roller guide assembly | Hideki Arai, Takami Koyama, Hideki Nakano | 2016-09-06 |
| 9382098 | Elevator device and roller guide assembly | Hideki Arai, Takami Koyama, Hideki Nakano, Kota Ojima | 2016-07-05 |
| 9219519 | Proximity wireless transmission/reception device | Fumio Okuno | 2015-12-22 |
| 8659858 | Ground-fault detecting device, current collecting box using the ground-fault detecting device, and photovoltaic power generating device using the current collecting box | Takahisa Matsuo, Shuhei Nishikawa | 2014-02-25 |
| 8461716 | Photovoltaic power generating device, and controlling method | Takahisa Matsuo, Shuhei Nishikawa | 2013-06-11 |