Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5328794 | Fluorine-containing graft copolymer and toner using the same | Tsubuko Kazuo, Shinichi Kuramoto, Kazuhiko Umemura, Toshihiko Takahashi | 1994-07-12 |
| 5189102 | Method for producing a vinyl resin using a silicon oil solvent | Kazuo Tsubuko, Shinichi Kuramoto, Kazuhiko Umemura | 1993-02-23 |
| 5169739 | Liquid developer for image fixing method using heat application rollers | Kazuhiko Umemura, Kazuo Tsubuko, Shinichi Kuramoto, Toshihiko Takahashi | 1992-12-08 |
| 5061587 | Toner for electrophotography including fluorine contained graft copolymer | Kazuo Tsubuko, Shinichi Kuramoto, Kazuhiko Umemura | 1991-10-29 |