Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11110362 | Spinning top launching device | Hiroyuki Hama | 2021-09-07 |
| 10960317 | Spinning top toy and spinning top toy set | Hiroyuki Hama | 2021-03-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11110362 | Spinning top launching device | Hiroyuki Hama | 2021-09-07 |
| 10960317 | Spinning top toy and spinning top toy set | Hiroyuki Hama | 2021-03-30 |