Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874229 | Planar dimmer | Toshiyasu Ito, Jun Minoura, Takaaki Mori, Shigeyuki Takahashi, Junichi Shimada +1 more | 1989-10-17 |
| 4826750 | Development process in electrophotography utilizing carbon black of specified coloring power | Kouji Maekawa, Kenichi Matsunobu, Naoka Fujie, Hiroyuki Hazama | 1989-05-02 |