Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D880623 | Accessory for spinning top toy | Masamichi Okutsu | 2020-04-07 |
| D875841 | Accessory for spinning top toy | Hisashi Nakajima | 2020-02-18 |
| D875842 | Accessory for spinning top toy | Hisashi Nakajima | 2020-02-18 |
| D862609 | Spinning top toy | Makoto Muraki | 2019-10-08 |
| D857106 | Spinning top toy | — | 2019-08-20 |
| D855706 | Spinning top toy | — | 2019-08-06 |
| D854095 | Spinning top toy | — | 2019-07-16 |
| D851178 | Spinning top toy | — | 2019-06-11 |
| D849846 | Spinning top toy | — | 2019-05-28 |
| D841098 | Spinning top toy | — | 2019-02-19 |
| D837899 | Spinning top toy | — | 2019-01-08 |
| D827043 | Spinning top toy | Makoto Muraki, Rena Mase | 2018-08-28 |
| 8991476 | Thermal storage device | Kenji Tsubone, Seiichi Hashi, Masahito Tsukahara, Masataka Fukuzawa | 2015-03-31 |