Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11136806 | Opening and closing device for opening and closing body, and various opened and closed bodies having the same | — | 2021-10-05 |
| 11072958 | Damper hinge and western-style toilet using the same | Eiji Kawamura | 2021-07-27 |