Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10563357 | Rail and production method therefor | Teruhisa Miyazaki, Takuya Tanahashi | 2020-02-18 |
| 10544479 | Heat treatment device, heat treatment method, and rail steel | Kenichi Karimine, Kenji Saita | 2020-01-28 |
| 10526674 | Stress-relief heat treatment apparatus | Kenichi Karimine | 2020-01-07 |