Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6487165 | Optical recording medium | — | 2002-11-26 |
| 6483785 | Magneto-optical recording method using the relation of beam diameter and an aperture of converging lens | Yoshiteru Murakami, Junji Hirokane, Junichiro Nakayama, Akira Takahashi, Kenji Ohta +1 more | 2002-11-19 |
| 6438098 | Optical recording medium, media tracking method and recording/reproducing apparatus | Masaru Nomura, Hitoshi Takeuchi | 2002-08-20 |
| 6396775 | Magneto-optical device and recording/reproducing method | — | 2002-05-28 |