Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8803686 | Portable electronic device | Yoshio Sekiyama, Shinji Sugino | 2014-08-12 |
| 8502664 | Portable electronic device | Yoshio Sekiyama, Shinji Sugino | 2013-08-06 |
| 8135149 | Wireless communication device | Yoshio Sekiyama | 2012-03-13 |