Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10837095 | Hollow stabilizer production method and hollow stabilizer production device | Akira Tange | 2020-11-17 |
| 10584408 | Carburization device and carburization method | Wataru Nakao, Akira Tange, Koichi Tango | 2020-03-10 |