Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7073741 | Magnetic tape cassette | Kazuo Hiraguchi, Shozo Onmori, Teruo Ashikawa | 2006-07-11 |
| 6866215 | Magnetic tape cassette | Kazuo Hiraguchi, Shozo Onmori, Teruo Ashikawa | 2005-03-15 |
| 6863233 | Magnetic tape cassette | Kazuo Hiraguchi, Shozo Onmori, Teruo Ashikawa | 2005-03-08 |
| 6817561 | Magnetic tape cassette | Kazuo Hiraguchi, Shozo Onmori, Teruo Ashikawa | 2004-11-16 |