Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340577 | Process for producing carbon black | Kohichi Sugawara, Isamu Matsui, Teruhiro Ikegami | 1982-07-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340577 | Process for producing carbon black | Kohichi Sugawara, Isamu Matsui, Teruhiro Ikegami | 1982-07-20 |