Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6767652 | Galvannealed steel sheet superior in workability | Takayuki Yamamoto, Shunichi Hashimoto | 2004-07-27 |
| 6677516 | Photovoltaic cell and process for producing the same | Yasuo Chiba, Liyuan Han, Ryohsuke Yamanaka | 2004-01-13 |