Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7113453 | Method for recording and reproduction on a magneto-optical recording medium | Katsusuke Shimazaki, Norio Ohta, Akiyoshi Ito, Katsuji Nakagawa | 2006-09-26 |
| 5923625 | Magneto-optical recording medium and method for recording and reproduction thereon | Katsusuke Shimazaki, Norio Ohta, Akiyoshi Ito, Katsuji Nakagawa | 1999-07-13 |
| 4985880 | Optical information recording and reproducing apparatus | Yoshio Yoshida, Nobuo Ogata, Mitsuo Ishii, Yukio Kurata, Yasuo Nakata +1 more | 1991-01-15 |