Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6727010 | Magnetic recording medium, production process thereof, magnetic recording and reproducing apparatus, and medium substrate | Hiroshi Ohsawa | 2004-04-27 |
| 6673134 | Fine copper powder and process for producing the same | Kazuaki Takahashi | 2004-01-06 |