Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11590547 | Method of manufacturing variable wall thickness steel pipe and variable wall thickness steel pipe | Masaaki Mizumura, Hidehiro Arita | 2023-02-28 |
| 10888916 | Torsion beam manufacturing method, torsion beam manufacturing apparatus, and torsion beam | Masaaki Mizumura | 2021-01-12 |
| 10738366 | Electric-resistance welded steel pipe | Hideki Hamatani, Masakazu Ozaki, Takaaki Fukushi, Takuya Asano | 2020-08-11 |
| 10702902 | Method of manufacturing flaring-processed metal pipe | Shohei Tamura, Masaaki Mizumura | 2020-07-07 |
| 10618363 | Torsion beam manufacturing method and torsion beam manufacturing apparatus | Masaaki Mizumura | 2020-04-14 |
| 9149850 | Roll former for steel plate and roll bending method for steel plate using same | Hideyuki Nakamura | 2015-10-06 |