Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10933456 | Production method and production device for tube with spirally grooved inner surface | Yusuke Nakaura, Yuki Hateruma | 2021-03-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10933456 | Production method and production device for tube with spirally grooved inner surface | Yusuke Nakaura, Yuki Hateruma | 2021-03-02 |