Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4468111 | Developing device for use on an electrostatic copying apparatus | Ryutaro Yamagata, Nobuhiko Kozuka, Hitoshi Nishihama, Shigeo Koyama | 1984-08-28 |
| 4436412 | Cleaning device for use on an electrostatic copying apparatus | Ryutaro Yamagata, Nobuhiko Kozuka, Hitoshi Nishihama, Shigeo Koyama | 1984-03-13 |
| 4410259 | Apparatus for developing latent electrostatic image | Ryutaro Yamagata, Nobuhiko Kozuka, Hitoshi Nishihama, Shigeo Koyama | 1983-10-18 |