Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9298444 | Software updating method and portable terminal device | Yasuyuki Hirao, Katsumi Aoyagi, Toshihisa Sanbommatsu, Tomohiro Ichikawa | 2016-03-29 |
| 8826263 | Portable terminal, portable terminal control method, and portable terminal control program | Tomohiro Ichikawa, Yasuyuki Hirao, Katsumi Aoyagi | 2014-09-02 |
| 7905395 | Communication system, communication terminal and communication method | — | 2011-03-15 |