Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9980041 | Acoustic system | Fukushi Kawakami, Takehisa Okamoto | 2018-05-22 |
| 9915066 | Sound absorbing panel and soundproof wall equipment | Yasushi Hoshino, Shimpei Yatsunami, Junichi Fukito | 2018-03-13 |