Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855106 | Low alloy steels for use in pressure vessel | Masaaki Katsumata, Isamu Takagi, Eiji Takahashi, Tadamichi Sakai, Hideaki Ohtsu +2 more | 1989-08-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855106 | Low alloy steels for use in pressure vessel | Masaaki Katsumata, Isamu Takagi, Eiji Takahashi, Tadamichi Sakai, Hideaki Ohtsu +2 more | 1989-08-08 |