Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10883462 | Damper device with a plurality of stacked diaphragms coupled together by a coupler having holders forming a space provided between a peripheral weld of the diaphragms and the coupler | Takeyuki Yabuuchi, Shinichi Sugimoto, Osamu Hishinuma, Toshiaki Iwa, Yoshihiro Ogawa +1 more | 2021-01-05 |