Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6506531 | Magnetic carrier | Toshiyuki Hakata, Masaaki Fukugauchi, Kenji Okada, Yushi Mikuriya, Kazumi Yoshizaki | 2003-01-14 |
| 5654120 | Magnetic carrier for electrophotography | Toshiyuki Hakata, Masaaki Fukugauchi | 1997-08-05 |