Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9303708 | Chipping-resistant vibration damper in form of sheet | Ayumi Takata | 2016-04-05 |
| 8268440 | Steel plate-reinforcing material of a type giving vibration-damping performance to a steel plate | Ayumi Takata, Yasuhiko Ohashi | 2012-09-18 |