Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4711733 | Lubricant for the production of seamless tubes | Noboru Kanda, Kenzou Yokoyama, Ken Aoki, Masayuki Hatanaka, Tatsuharu Oda | 1987-12-08 |
| 4498324 | Restrained mandrel mill inlet table | Megumu Tanaka | 1985-02-12 |
| 4458885 | Quenching apparatus for steel pipes | Haruyuki Nakanishi | 1984-07-10 |
| 4452061 | Seamless steel pipe manufacturing installation | Masachika Numano | 1984-06-05 |
| 4449386 | Steel pipe rolling mill | Masayuki Hatanaka, Akira Uemura | 1984-05-22 |
| 4444035 | Steel pipe rolling mill | Masayuki Hatanaka, Akira Uemura | 1984-04-24 |
| 4424616 | Conditioning line for steel pipes | Masachika Numano, Minoru Morita | 1984-01-10 |
| 4406145 | Roll changing apparatus for rolling mills | — | 1983-09-27 |
| 4406141 | Straightening apparatus for steel pipes and the like | Masachika Numano | 1983-09-27 |
| 4387584 | Steel pipe rolling mill | Masayuki Hatanaka | 1983-06-14 |
| 4382503 | Walking beam | Minoru Morita | 1983-05-10 |