Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1024942 | Battery charger for earphones | Takashi Nara, Yutaro Kumagai | 2024-04-30 |
| D997133 | Earphone | Takashi Nara, Yutaro Kumagai | 2023-08-29 |
| D948483 | Earphone | Takashi Nara, Naoto Nakamura | 2022-04-12 |
| D933601 | Battery charger for earphone | Takashi Nara, Naoto Nakamura | 2021-10-19 |
| 10959005 | Headphone | — | 2021-03-23 |
| 10511900 | Headphone | Koji Otsuka, Yumi Shimazaki | 2019-12-17 |
| 10249287 | Noise-cancelling headphone | Koji Otsuka, Yumi Shimazaki | 2019-04-02 |
| D673521 | Headphone | Shohei Tokoi | 2013-01-01 |
| D631470 | Earphone | Kensuke Iizuka | 2011-01-25 |