Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D949101 | Battery charger for earphones | Keigo Iwahori, Toru Ueno | 2022-04-19 |
| D940097 | Earphone | Akihito Tamamura, Koji Yano | 2022-01-04 |
| D938941 | Earphone | Keigo Iwahori, Toru Ueno | 2021-12-21 |
| D936034 | Earphone | Kohei Yoshida, Koji Yano | 2021-11-16 |
| D908663 | Headphone | Akihito Tamamura | 2021-01-26 |
| D904347 | Earphone | Masayuki Yamamoto | 2020-12-08 |
| D878336 | Earphone | Nonomi Shiwaku, Tsutomu Takeshita | 2020-03-17 |