Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5612161 | Negatively chargable toner for electrophotography | Masao Watanabe, Kozo Suzuki | 1997-03-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5612161 | Negatively chargable toner for electrophotography | Masao Watanabe, Kozo Suzuki | 1997-03-18 |