Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5957368 | Method of continuously hot rolling steel pieces | Katsuhiro Takebayashi, Yoshikiyo Tamai, Kunio Isobe, Hideyuki Nikaido, Koichi Uemura | 1999-09-28 |
| 5720196 | Hot-rolling method of steel piece joint during continuous hot-rolling | Yoshikiyo Tamai, Katsuhiro Takebayashi, Hideyuki Nikaido, Kunio Isobe | 1998-02-24 |
| 5513511 | Method of producing seamless steel tube by using mandrel mill | Hiromu Oka | 1996-05-07 |
| 5218851 | Mandrel mill capable of preventing stripping miss | — | 1993-06-15 |