Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D892227 | Spinning top toy | Hiroyuki Hama, Toshinobu Ishii | 2020-08-04 |
| D892226 | Spinning top toy | Hiroyuki Hama, Toshinobu Ishii | 2020-08-04 |
| D891528 | Spinning top toy | Hiroyuki Hama, Toshinobu Ishii | 2020-07-28 |
| D891526 | Accessory for spinning top toy | Hiroyuki Hama, Toshinobu Ishii | 2020-07-28 |
| D886913 | Accessory for spinning top toy | Hiroyuki Hama, Toshinobu Ishii | 2020-06-09 |
| D886914 | Accessory for spinning top toy | Hiroyuki Hama, Toshinobu Ishii | 2020-06-09 |
| D855119 | Accessory for spinning top toy | Shina Saito, Toshinobu Ishii | 2019-07-30 |