Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10431196 | Soundproof structure and adjustment method of soundproof structure | Masayuki Naya, Shinya Hakuta | 2019-10-01 |
| 10373599 | Soundproofing structure, opening structure, cylindrical structure, window member, and partition member | Shinya Hakuta, Hiroshi Komatsu | 2019-08-06 |
| 10269339 | Soundproofing structure, partition structure, window member, and cage | Shinya Hakuta, Hiroshi Komatsu | 2019-04-23 |