Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8302351 | Vibration damper | Yoshimitsu Ohashi, Yoshinari Kawai, Manabu Hattori | 2012-11-06 |
| 6069098 | Mortar substrate sheet | Yutaka Shimizu, Yoshimi Ueda, Morihisa Otsuka | 2000-05-30 |