Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11931660 | Wisdom ring puzzle | — | 2024-03-19 |
| 11878254 | Wisdom ring puzzle | — | 2024-01-23 |
| 11052306 | Wisdom ring puzzle | — | 2021-07-06 |
| 10850188 | Wisdom ring puzzle | — | 2020-12-01 |
| 10351507 | Carbonate ester purification method, carbonate ester solution production method, and carbonate ester purification apparatus | Hirofumi Ii, Yuya Fukui, Yohei Shimasaki, Koji Okano, Naoto Nakao | 2019-07-16 |
| 10351508 | Carbonate ester purification method, carbonate ester solution production method, and carbonate ester purification apparatus | Hirofumi Il, Yuya Fukui, Yohei Shimasaki, Koji Okano, Naoto Nakao | 2019-07-16 |
| 4682408 | Method for making field oxide region with self-aligned channel stop implantation | — | 1987-07-28 |