Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11649514 | Method for removing phosphorus from phosphorus-containing substance | Yoshie Nakai, Naoki Kikuchi | 2023-05-16 |
| 11293069 | Method for oxygen-blowing refining of molten iron and top-blowing lance | Nobuhiko Oda, Goro Okuyama, Shota Amano, Yukio Takahashi, Yuta HINO +2 more | 2022-04-05 |
| 9957581 | Method for refining hot metal in converter | Yukio Takahashi, Naoki Kikuchi, Goro Okuyama, Shingo Sato, Yuichi Uchida +1 more | 2018-05-01 |
| 9580764 | Top-blowing lance and method for refining molten iron using the same | Goro Okuyama, Naoki Kikuchi, Yuichi Uchida, Yukio Takahashi, Shingo Sato +2 more | 2017-02-28 |