Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5870424 | Graphite electrode having joints | Masao Todoriki, Takayuki Fukai, Osamu Kanazawa, Hiroyuki Yamashita | 1999-02-09 |
| 4703492 | Joined carbon electrodes and method for the joining thereof | Tomiyasu Kubota | 1987-10-27 |