Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844349 | Process for producing toner for developing electrostatic images and apparatus therefor | Hitoshi Kanda | 1989-07-04 |
| 4802977 | Process for size separating toner particles | Hitoshi Kanda | 1989-02-07 |