Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5171652 | Image-forming process and magnetic developing sleeve for use in carrying out the same | — | 1992-12-15 |
| 4950570 | Image-forming process using photosensitive toner | Yumiko Sano, Kazuhito Takaoka | 1990-08-21 |