Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12417754 | Electric guitar body-structure and electric guitar | Kenta ISHIZAKA | 2025-09-16 |
| 11380290 | Electric guitar body structural unit and electric guitar | Kenta ISHIZAKA | 2022-07-05 |
| 10045119 | Acoustic structure and acoustic panel | Akira Miki, Hirofumi Onitsuka | 2018-08-07 |
| 9646579 | Stringed musical instrument | Daisuke Nakayama, Ryo Shinoda | 2017-05-09 |