Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5644018 | Pitch with reduced tendency to smoke during spinning and a process for the production of said pitch | Takashi Kojima, Yasuhiro Hirai | 1997-07-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5644018 | Pitch with reduced tendency to smoke during spinning and a process for the production of said pitch | Takashi Kojima, Yasuhiro Hirai | 1997-07-01 |