Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821469 | Method of manufacturing a roller | — | 2004-11-23 |
| 6817561 | Magnetic tape cassette | Kazuo Hiraguchi, Shozo Onmori, Atusi Takano | 2004-11-16 |
| 6804084 | Magnetic tape cassette having reduced friction against tape reels | Hiroyuki Naito, Kiyoo Morita, Shozo Onmori, Katsuki Asano, Masayoshi Moriwaki | 2004-10-12 |
| 6719232 | Magnetic tape cassette | Shozo Onmori, Kazuo Hiraguchi, Hiroyuki Naito | 2004-04-13 |