Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4968576 | Resinous microparticles useful in powdery toner for electrophotography | Masayuki Maruta, Katsuaki Kida, Akio Kashihara, Naoya Yabuuchi | 1990-11-06 |
| 4816364 | Magnetic carrier particles for electrophotographic developer having plated layer of iron oxide | Masao Oishi, Takao Saito, Kouichi Nagata, Katsukiyo Ishikawa | 1989-03-28 |