Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6977870 | Optical head having light reflection prevention film, and optical information processing apparatus incorporating the same | Tsuyoshi Matsumoto | 2005-12-20 |
| 6898157 | Optical head having a plurality of coil elements connected in parallel to each other | Koji Matsumoto, Koichi Tezuka | 2005-05-24 |
| 6870806 | Magnetic head provided with moment-reducing contact for data storage medium | Tsuyoshi Matsumoto | 2005-03-22 |