Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4631181 | Process for producing mesophase pitch | Mitsuaki Matsumoto, Tadao Tomioka, Hirofumi Sunago, Masakazu Higuchi | 1986-12-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4631181 | Process for producing mesophase pitch | Mitsuaki Matsumoto, Tadao Tomioka, Hirofumi Sunago, Masakazu Higuchi | 1986-12-23 |