Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885651 | Tape cassette with low friction slide member for guiding movement of a lid thereon | Haruo Shiba, Masatoshi Okamura | 1989-12-05 |
| 4865265 | Magnetic tape cassette | Masaru Ikebe, Masatoshi Okamura | 1989-09-12 |
| 4858849 | Tape cassette housing | Masatoshi Okamura, Haruo Shiba, Yoshiya Sakata | 1989-08-22 |