Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643546 | Pitch-type carbon fibers and process for their production | Iwao Yamamoto, Hiroyuki Aikyo, Akihiko Yoshiya | 1997-07-01 |
| 5601794 | Pitch type carbon fibers and process for their production | Iwao Yamamoto, Hiroyuki Aikyo, Akihiko Yoshiya | 1997-02-11 |