Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4352859 | Magnetic recording medium | Kuniichi Yoda, Takehisa Ohkawa | 1982-10-05 |
| 4340644 | Magnetic recording medium | Hiroshi Ota, Eiji Horigome | 1982-07-20 |
| 4315057 | Magnetic recording medium | Eiji Horigome, Hiroshi Ohta | 1982-02-09 |