Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702859 | Electrophotographic toner and process for the production thereof | — | 1997-12-30 |
| 5667927 | Toner for electrophotography and process for the production thereof | Eiichi Ozeki | 1997-09-16 |