Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5941114 | Rolling apparatus for producing angle from steel strip and method of rolling the angle using the same | — | 1999-08-24 |
| 5928441 | Hot rolling method of steel products and hot rolling roll for steel products | Masaru Izawa, Kenji Tsubouchi | 1999-07-27 |
| 5409551 | Method for minimizing surface roughening of tungsten-containing rolls and other metallic articles | Shigeki Azuma, Hideaki Miyuki, Hideo Yamamoto | 1995-04-25 |
| 5287715 | Method of rolling steel shapes and apparatus therefor | — | 1994-02-22 |
| 4958509 | Rolling method for parallel-flange steel shapes | Hiroyuki Matoba, Tsuneo Yamada | 1990-09-25 |
| 4669293 | Continuous rolling method and continuous rolling mill | Chihiro Hayashi | 1987-06-02 |
| 4420961 | Method for producing beam blank for universal beam | Chihiro Hayashi | 1983-12-20 |
| 4393679 | Method for producing blank for wide flange beam | — | 1983-07-19 |