Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE42490 | Device and method for amplifying suction noise | Shinichi Takeuchi, Hiroshi Shimada | 2011-06-28 |
| 7717230 | Device and method for amplifying suction noise | Shinichi Takeuchi, Hiroshi Shimada | 2010-05-18 |