Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10964296 | Board for stringed instrument, acoustic stringed instrument, and method of manufacturing board for stringed instrument | Kazuki SOGA, Hiroshi Nakaya, Kenichi Miyazawa | 2021-03-30 |
| 10789915 | Acoustic string instrument, and methods for manufacturing and repairing same | Kazuki SOGA, Yoshiro Yamauchi, Akio Matsushima, Hiroshi Nakaya | 2020-09-29 |
| 10195828 | Acoustic material and musical instrument | Eri HIRAI, Hidefumi Yamauchi | 2019-02-05 |
| 9666168 | Board for stringed instrument, method of manufacturing board for stringed instrument, and stringed instrument | Kazuki SOGA, Tatsuya Hiraku, Hiroshi Nakaya, Kenichi Miyazawa | 2017-05-30 |
| 9406285 | Board for stringed instrument, method of manufacturing board for stringed instrument, and stringed instrument | Kazuki SOGA, Tatsuya Hiraku, Hiroshi Nakaya, Kenichi Miyazawa | 2016-08-02 |