Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10472693 | Head hardened rail manufacturing method and manufacturing apparatus | Hiroyuki Fukuda, Kenji Okushiro | 2019-11-12 |
| 10214795 | Rail manufacturing method and manufacturing equipment | Kenji Okushiro, Hiroyuki Fukuda, Moriyasu Yamaguchi | 2019-02-26 |