Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10861432 | Soundproof structure and opening structure | Shinya Hakuta, Shogo Yamazoe | 2020-12-08 |
| 10847133 | Soundproof structure | Shogo Yamazoe, Shinya Hakuta, Yoshihiro SUGAWARA | 2020-11-24 |
| 10577791 | Soundproof structure and soundproof system | Shinya Hakuta, Shogo Yamazoe | 2020-03-03 |