Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4554651 | Magneto-optical recording medium and method for preventing the erasing of the information recorded on the magneto-optical recording medium | Mikio Kanai, Hideki Hatano, Norikiyo Tajiri, Sigeru Kato | 1985-11-19 |
| 4549287 | System for recording and playing back information with magneto-optical disk memory using record and readout light beams of different wavelengths | Hideki Hatano, Norikiyo Tajiri, Shigeru Kato | 1985-10-22 |
| 4539662 | Method and system for optically recording and playing back information on a recording medium having magnetization film thereon | Hideki Hatano, Norikiyo Tajiri, Shigeru Kato | 1985-09-03 |
| 4525824 | Information recording system | Hideki Hatano, Norikiyo Tajiri, Shigeru Kato | 1985-06-25 |