Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9821355 | Method of manufacturing rectangular tube having stepped portion | Hirokazu Sasaki, Naofumi Nakamura, Jun Kurobe | 2017-11-21 |
| 9757789 | Method of manufacturing rectangular tube having stepped portion | Hirokazu Sasaki, Naofumi Nakamura, Jun Kurobe | 2017-09-12 |