Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11270680 | Soundproof structure and method of manufacturing soundproof structure | Tetsuya Otsuka, Naoto Hayashi | 2022-03-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11270680 | Soundproof structure and method of manufacturing soundproof structure | Tetsuya Otsuka, Naoto Hayashi | 2022-03-08 |