Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5665468 | Magneto-optical recording medium | Masahiko Sekiya, Tohru Horiguchi | 1997-09-09 |
| 5633746 | Magneto-optical recording medium | Masahiko Sekiya | 1997-05-27 |
| 5626973 | Magneto-optical layer and magneto-optical recording medium | Yoshihiko Takeda, Tomokazu Umezawa | 1997-05-06 |
| 5614287 | Magneto-optical recording medium comprising a specified substrate | Masahiko Sekiya, Utami Yonemura | 1997-03-25 |