Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D639270 | Holder for cord for earphones and headphones | Reiko Kakusaka | 2011-06-07 |
| D637585 | Earphone | Reiko Kakusaka | 2011-05-10 |
| D621389 | Earphone | Hisaya Hagiwara | 2010-08-10 |
| D599780 | Headphone | — | 2009-09-08 |