Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864448 | Tape cassette | Haruyuki Karibe, Tadao Igarashi | 1989-09-05 |
| 4824044 | Tape cassette | — | 1989-04-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864448 | Tape cassette | Haruyuki Karibe, Tadao Igarashi | 1989-09-05 |
| 4824044 | Tape cassette | — | 1989-04-25 |