Nakao; Ryuji
Patent Applications and Registrations
Patent applications and USPTO patent grants for Nakao; Ryuji.The latest application filed is for "refining method and refining apparatus for chromium-contained molten steel".
- Nakao; Ryuji - Hikari JP
- Nakao; Ryuji - Hikari-shi JP
| Patent | Date |
|---|---|
| Refining method and refining apparatus for chromium-contained molten steel Grant 7,497,987 - Yamashita , et al. March 3, 2 | 2009-03-03 |
| Refining method and refining apparatus for chromium-contained molten steel App 20070152386 - Yamashita; Kosuke ; et al. | 2007-07-05 |
| Method for decarbonization refining of chromium-containing molten steel Grant 6,830,606 - Nakao , et al. December 14, 2 | 2004-12-14 |
| Method for refining molten iron containing chromium App 20040245682 - Yamashita, Kosuke ; et al. | 2004-12-09 |
| Method for decarbonization refining of chromium-containing molten steel App 20040182203 - Nakao, Ryuji ; et al. | 2004-09-23 |
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