Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5576254 | Carbon refractory for blast furnace and method for manufacturing such carbon refractory | Hitoshi Nakamura, Yutaka Takusagawa, Tsutomu Wakasa | 1996-11-19 |
| 4253646 | Hot blast-furnace-lining repairing apparatus | Kanji Goto, Tiyomi Yamaguti, Rokuro Komakine | 1981-03-03 |