Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868819 | Access control apparatus | — | 1989-09-19 |
| 4825431 | Disc reproducing apparatus | Mitsuru Hanajima | 1989-04-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868819 | Access control apparatus | — | 1989-09-19 |
| 4825431 | Disc reproducing apparatus | Mitsuru Hanajima | 1989-04-25 |