Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5597405 | Magnetic composition, magnetic toner and ink containing the magnetic composition | Kyuya Yakushi | 1997-01-28 |
| 5506079 | Magnetic composition, magnetic toner and ink containing the magnetic composition | Kyuya Yakushi | 1996-04-09 |