Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10229665 | Porous sound absorbing structure | Ichiro Yamagiwa, Zenzo Yamaguchi, Akio Sugimoto, Hideki Ishitobi | 2019-03-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10229665 | Porous sound absorbing structure | Ichiro Yamagiwa, Zenzo Yamaguchi, Akio Sugimoto, Hideki Ishitobi | 2019-03-12 |