Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6724573 | Tape cassette with front lid held unlocked by lid lock pin caught in lid recess | — | 2004-04-20 |
| 6697222 | Tape cassette with wide extraction portions and tape drive apparatus | Sunao Kushiro | 2004-02-24 |
| 6683752 | Tape cassette | Sunao Kushiro | 2004-01-27 |