Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7621370 | Sound increase apparatus | Hiroyuki Abe, Akira Sasaki, Masashi Shinada, Yuta Saito | 2009-11-24 |
| 7506626 | Device and method for amplifying suction noise | Akira Sasaki, Hiroyuki Abe, Shunsuke Ebata, Hiroshi Miyauchi | 2009-03-24 |