Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6812634 | Graphite nanofibers, electron-emitting source and method for preparing the same, display element equipped with the electron-emitting source as well as lithium ion secondary battery | Masaaki Hirakawa, Chiaki Tanaka | 2004-11-02 |