Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833059 | Developing method using one-component non-magnetic toner with positive frictional charge | Shinya Tomura, Tetsuo Okuyama, Tsutomu Uehara | 1989-05-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833059 | Developing method using one-component non-magnetic toner with positive frictional charge | Shinya Tomura, Tetsuo Okuyama, Tsutomu Uehara | 1989-05-23 |