Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11199323 | Burner | Takeshi Saito, Yoshiyuki Hagihara, Yasuyuki Yamamoto | 2021-12-14 |
| 11053559 | Melting and refining furnace for cold iron source and method of operating melting and refining furnace | Yoshiyuki Hagihara, Yasuyuki Yamamoto | 2021-07-06 |