Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5612122 | High recording density magnetic recording medium having an undercoat layer of iron oxide and carbon black | Yoji Tsukamoto, Toshio Ohta | 1997-03-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5612122 | High recording density magnetic recording medium having an undercoat layer of iron oxide and carbon black | Yoji Tsukamoto, Toshio Ohta | 1997-03-18 |