Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6671234 | Magneto-optical storage media and method of reproducing the same | Junji Hirokane | 2003-12-30 |
| 6630219 | Optical disk and recording/reproducing device | Junji Hirokane | 2003-10-07 |
| 6545955 | Magneto-optic storage media and methods of reproducing the same | Junji Hirokane | 2003-04-08 |
| 6534162 | Magneto-optical recording medium | Junji Hirokane | 2003-03-18 |
| 6510129 | Optical recording medium, manufacturing method of optical recording medium master disk, and cutting device used therefor | Junji Hirokane | 2003-01-21 |