Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10593453 | High permeability magnetic sheet | Atsuhito Matsukawa, Mitsuhiro Matsuhashi | 2020-03-17 |
| 5616398 | Magnetic recording medium | Shigeo Kurose, Akira Somiya | 1997-04-01 |
| 5532041 | Magnetic recording media and method for making them | Yoshisuke Yamakawa, Hiroshi Kawahara, Eizo Tsunoda | 1996-07-02 |
| 5510140 | Method for preparing magnetic recording medium | Shigeo Kurose, Akira Somiya | 1996-04-23 |
| 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 | Yoshisuke Yamakawa, Hiroshi Kawahara, Masashi Hayama | 1991-08-27 |