Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882303 | Modified steel slag and method of manufacturing the same | Kozo Sonobe, Takashi Fukuzawa, Kohsuke Takeuchi, Tatushi Tabata, Kunio Hisamatsu +1 more | 1989-11-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882303 | Modified steel slag and method of manufacturing the same | Kozo Sonobe, Takashi Fukuzawa, Kohsuke Takeuchi, Tatushi Tabata, Kunio Hisamatsu +1 more | 1989-11-21 |