Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6783747 | Graphite carbon powder, and method and apparatus for producing the same | Akinori Sudo, Chiaki Sotowa | 2004-08-31 |
| 6720048 | Pipe comprising ethylene base polymer | Katsutoshi Ohta, Ryouichi Nakano | 2004-04-13 |