Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812177 | Hot working method for producing a superplastic ferrous duplex-phase alloy | Yoshio Tarutani | 1989-03-14 |
| 4802356 | Apparatus of processing continuously cast slabs | Tsuneo Yamada, Tsutomu Sakashita, Hiroshi Tomono, Takashi Kimura, Kunio Yasumoto | 1989-02-07 |