Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5213933 | Positively chargeable magnetic toner, image forming process image forming apparatus, apparatus unit and facsimile apparatus | Keita Nozawa, Kuniko Kobayashi, Masatsugu Fujiwara, Masayoshi Shimamura | 1993-05-25 |