Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5759733 | Liquid developer for electrostatic electrophotography | Kazuo Tsubuko, Shinichi Kuramoto, Toshiki Nanya, Kazuhiko Umemura | 1998-06-02 |
| 4855207 | Developer for electrophotography | Kazuo Tsubuko | 1989-08-08 |
| 4764447 | Non-aqueous type resin dispersion and electrophotographic developer containing said resin | Kazuo Tsubuko, Shinichi Kuramoto, Makoto Okawara, Hajime Takanashi | 1988-08-16 |
| 4690881 | Liquid developer for electrophotography | Kazuo Tsubuko | 1987-09-01 |