Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D932870 | Rotary damper for hinges | — | 2021-10-12 |
| 11131359 | Torque adjustment function-provided rotary damper | — | 2021-09-28 |
| 11059402 | Conveyance seat | Yoichi Tachikawa, Takatoshi Nakazawa, Naoto Nagasawa | 2021-07-13 |
| 10953770 | Vehicle seat | Takatoshi Nakazawa, Hiromi Taniguchi | 2021-03-23 |