Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684762 | Opto-magnetic head apparatus | — | 1997-11-04 |
| 5600494 | Objective lens system of an optical disk device | Koichi Maruyama, Suguru Takishima | 1997-02-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684762 | Opto-magnetic head apparatus | — | 1997-11-04 |
| 5600494 | Objective lens system of an optical disk device | Koichi Maruyama, Suguru Takishima | 1997-02-04 |