Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873185 | One-component toner for dry electrophotography containing metal complex as charge control agent | Satoshi Yasuda, Tetsuya Kuribayashi | 1989-10-10 |
| 4824752 | Electrophotographic magnetic dry developer containing cerium oxide and hydrophobic silica | Satoshi Yasuda, Seiichi Takagi, Yusuke Karami | 1989-04-25 |