Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814129 | Process for producing stabilized yarn for producing carbon fiber | Koichi Imai | 1989-03-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814129 | Process for producing stabilized yarn for producing carbon fiber | Koichi Imai | 1989-03-21 |