Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5040166 | Magneto-optical recording medium having a reflective film of Ag and Mn or Ag, Mn and Sn | Masanobu Kobayashi, Yoshinori Maeno | 1991-08-13 |
| 5009762 | Magneto-optical recording medium having protective film with increased kerr effect and improved protection characteristic and manufacturing method of the same | Yoshinori Maeno, Masanobu Kobayashi | 1991-04-23 |
| 4950547 | Magneto-optical recording medium having protective film with increased Kerr effect and improved protection characteristic and manufacturing method of the same | Yoshinori Maeno, Masanobu Kobayashi | 1990-08-21 |