Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4968575 | A toner composition comprising a rosin-containing polyester | Akira Matsumura, Tomiji Itou, Sadao Shigematsu | 1990-11-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4968575 | A toner composition comprising a rosin-containing polyester | Akira Matsumura, Tomiji Itou, Sadao Shigematsu | 1990-11-06 |