Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4950574 | Toner for developing electrostatic image comprising vinyl polymer having hydroxyl number of 50 to 350 | Yuugo Kumagai, Isamu Moribe | 1990-08-21 |
| 4657834 | Electrophotographic plate having a charge generating layer containing an organic pigment for charge generation | Shigeo Tachiki, Makoto Fujikura, Atsushi Kakuta | 1987-04-14 |
| 4565758 | Electrophotographic plate having a charge generating layer containing an organic pigment for charge generation | Shigeo Tachiki, Makoto Fujikura, Atsushi Kakuta | 1986-01-21 |