Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4802021 | Recording and/or reproducing apparatus using opto-magnetic disc | Shozo Makagawa, Akihiro Takagi | 1989-01-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4802021 | Recording and/or reproducing apparatus using opto-magnetic disc | Shozo Makagawa, Akihiro Takagi | 1989-01-31 |