Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9383438 | Presence detection system, presence detection method, and program | Yoshiaki Koizumi | 2016-07-05 |
| 9282474 | Wireless communication device, wireless communication system, and channel selection method | Hiroaki Ushirosako, Yoshiaki Koizumi | 2016-03-08 |