Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6627256 | Method for slag coating of converter wall | Yoshiyuki Tanaka, Nobukazu Kitagawa | 2003-09-30 |
| 5011531 | Method and apparatus for degassing molten metal utilizing RH method | Kiyoshi Takahashi, Nobuyoshi Takashiba, Shinji Kojima, Shigeru Ohmiya, Ryuichi Ikeda | 1991-04-30 |
| 4949778 | Immersion nozzle for continuous casting | Kenji Saito, Tsutomu Nozaki, Yukio Oguchi, Kenichi Sorimachi, Hakaru Nakato +3 more | 1990-08-21 |