Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10964296 | Board for stringed instrument, acoustic stringed instrument, and method of manufacturing board for stringed instrument | Toshihisa Yamazaki, Hiroshi Nakaya, Kenichi Miyazawa | 2021-03-30 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10964296 | Board for stringed instrument, acoustic stringed instrument, and method of manufacturing board for stringed instrument | Toshihisa Yamazaki, Hiroshi Nakaya, Kenichi Miyazawa | 2021-03-30 |