Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5155533 | Bias application control device for image forming equipment | Junji Kurokawa, Tsukasa Adachi | 1992-10-13 |
| 4930438 | Developing device using a single component developer | Makoto Obu, Hidetoshi Yano, Ryubun Seimiya, Noriyoshi Tarumi | 1990-06-05 |
| 4760422 | Developing device using single component toner | Ryubun Seimiya, Noriyoshi Tarumi, Makoto Obu, Hidetoshi Yano | 1988-07-26 |
| 4696255 | Developing apparatus | Hidetoshi Yano, Ryubun Seimiya, Noriyoshi Tarumi, Makoto Obu | 1987-09-29 |
| 4521502 | Color recording method | Katsuo Sakai | 1985-06-04 |