Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5062982 | Magnetic powder for magnetic recording media | Haruhisa Yamamoto, Hidenobu Urata, Hidenori Sawabe | 1991-11-05 |
| 5062983 | Magnetic powder for magnetic recording media | Haruhisa Yamamoto, Hidenobu Urata, Hidenori Sawabe | 1991-11-05 |