Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5532041 | Magnetic recording media and method for making them | Yoshihiro Honjo, Hiroshi Kawahara, Eizo Tsunoda | 1996-07-02 |
| 5110659 | Lapping tape | Kiyoto Fukushima, Koji Matsuno | 1992-05-05 |
| 5043210 | Magnetic recording media having two magnetic layers; the first for recording a baseboard signal and the second for recording a superimposed surface and signal | Yoshihiro Honjo, Hiroshi Kawahara, Masashi Hayama | 1991-08-27 |
| 4684546 | Method of making a magnetic recording medium | Yasumichi Tokuoka, Akio Watanabe | 1987-08-04 |
| 4663246 | Magnetic recording medium | Yasumichi Tokuoka, Akio Watanabe | 1987-05-05 |