Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11205455 | Magnetic recording medium | Masaru Terakawa, Minoru Yamaga | 2021-12-21 |
| 11170813 | Magnetic powder, method of producing the same, and magnetic recording medium | Atsushi Muramatsu, Masafumi Nakaya, Masaru Terakawa, Minoru Yamaga | 2021-11-09 |
| 11145328 | Magnetic recording medium | Masaru Terakawa, Minoru Yamaga | 2021-10-12 |