Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4923692 | Process for producing pitch-type carbon fibers | Akira Nakagoshi, Hiroshi Tahara, Tetuo Yamada, Hiroyuki Sekiguchi | 1990-05-08 |
| 4216060 | Horizontal type coke ovens | Koretoshi Fujishiro, Shunsaku Hiraga, Masamitu Hiyoshi | 1980-08-05 |