Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5255255 | Disk loading device | Masataka Kaneda, Takashi Suzuki, Yasuyoshi Kagohashi, Masahiro Watanabe, Tukasa Nakayama +1 more | 1993-10-19 |
| 4273848 | Oriented magnetic toner | Sanji Inagaki, Koji Nagai | 1981-06-16 |
| 4262076 | Method for manufacturing magnetically attractive toner particles and particle | Shigeyuki Hakumoto, Koji Nagai | 1981-04-14 |
| 4254204 | Magnetic brush electrographic developing method | Hitoshi Kato, Koji Nagai | 1981-03-03 |