Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6972146 | Structure having holes and method for producing the same | Tohru Den, Nobuhiro Yasui | 2005-12-06 |
| 6852431 | Magnetic recording media and method for manufacturing the same | Toru Den | 2005-02-08 |