Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D648328 | Earphone | — | 2011-11-08 |
| D637180 | Earphone | Yosuke Shimizu, Keiko Densho, Naoki Sugiyama, Sohei Kitayama, Naoto Shimizu | 2011-05-03 |
| D635124 | Headphone | — | 2011-03-29 |
| D633895 | Headphone | — | 2011-03-08 |