Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5568454 | Apparatus and method for detecting a defect on a magneto-optical disk | Yasuji Shima | 1996-10-22 |
| 5270879 | Magneto-optical disk inspecting method and apparatus | Yasuji Shima | 1993-12-14 |