Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5028497 | Magnetic recording medium utilizing a fungicide | Masashi Somezawa | 1991-07-02 |
| 4656089 | Magnetic recording medium | Yoshinobu Ninomiya, Masayoshi Sugiyama, Akira Hashimoto | 1987-04-07 |