Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11155993 | Soundproofing structure, partition structure, window member, and cage | Shogo Yamazoe, Hiroshi Komatsu | 2021-10-26 |
| 11049485 | Soundproof structure | — | 2021-06-29 |
| 10988924 | Soundproof structure, sound absorbing panel, and sound adjusting panel | Shogo Yamazoe, Yuichi Kasuya | 2021-04-27 |
| 10971129 | Soundproof structure, louver, and soundproof wall | Shogo Yamazoe, Masayuki Naya, Tadashi Kasamatsu | 2021-04-06 |
| 10923095 | Soundproof structure | Shogo Yamazoe | 2021-02-16 |
| 10923094 | Soundproof structure | Shogo Yamazoe | 2021-02-16 |
| 10902835 | Soundproof structure | Akihiko OHTSU, Shogo Yamazoe, Yoshihiro SUGAWARA | 2021-01-26 |