Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819648 | Optical sample and method of writing and reading information on the same | Junji Tominaga, Nobufumi Atoda, Hiroshi Fuji, Kenji Ohta | 2004-11-16 |
| 6816334 | Information recording and reproducing device and tracking servo system therefor | Kosuke Watanabe, Kunio Kojima | 2004-11-09 |
| 6804822 | Magnetic recording medium and magnetic recording apparatus using same | Junichi Sato, Kosuke Watanabe, Kunio Kojima, Hiroshi Fuji, Kenji Ohta | 2004-10-12 |
| 6741549 | Optical recording medium and optical recording and reproduction apparatus | Junji Tominaga, Jooho Kim, Nobufumi Atoda, Hiroshi Fuji | 2004-05-25 |
| 6721237 | Composite magnetic head device | Kunio Kojima, Masaki Hamamoto, Junichi Satoh | 2004-04-13 |
| 6687195 | Magnetic recording head and magnetic recording device | Shintaro Miyanishi, Kunio Kojima, Hiroshi Fuji | 2004-02-03 |