Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11439239 | Backrest and chair | Hiroshi Masunaga | 2022-09-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11439239 | Backrest and chair | Hiroshi Masunaga | 2022-09-13 |