Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11213886 | Socket installation structure of refractory article | Yuuya Uchida, Hirotaka Itou, Hitoshi Nakamura | 2022-01-04 |
| 9260143 | Rotation device for construction machine | Hideki Akita, Shigeyuki Sakurai | 2016-02-16 |