Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6729570 | Magnetic tape cassette, tape reel and magnetic tape | Makoto Sato, Mitsugu Yamagishi, Kiyoo Morita | 2004-05-04 |
| 6686024 | Magnetic recording medium | Mikio Ohno, Toshichika Aoki, Hiroaki Araki | 2004-02-03 |