Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4327899 | Stave cooling device having unwelded double tube | Gyoichi Suzuki, Masaaki Higuchi, Tsunenori Sugawara, Takeshi Yano | 1982-05-04 |
| 4270980 | Method for recovering and utilizing heat of coke-oven gas | Kazuo Kunioka, Hiroaki Nishio, Yasuo Okuyama | 1981-06-02 |