Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886547 | Powder manufacturing apparatus and method therefor | Hideaki Mizukami, Kentaro Mori, Akichika Ozeki, Takaho Kawawa, Yuji Sugitani +2 more | 1989-12-12 |
| 4799079 | Electrostatic copying apparatus capable of copying on both surfaces | Koji Ujino | 1989-01-17 |