Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5318883 | Charge control agent and tower for developing electrostatic images | Kazuaki Sukata, Shuji Sugawara | 1994-06-07 |
| 5049467 | Toner for use in the development of electrostatic latent images | — | 1991-09-17 |
| 4931588 | Compounds usable in a toner for developing electrostatic latent images | Yoji Kawagishi, Shinichi Narita, Takashi Kiriu | 1990-06-05 |
| 4826749 | Toner for developing electrostatic latent images | Yoji Kawagishi, Shinichi Narita, Takashi Kiriu | 1989-05-02 |