Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5963334 | Apparatus and method for measuring color of a measurement object | Wataru Yamaguchi | 1999-10-05 |
| 5592294 | Color measuring apparatus with position adjustment | Wataru Yamaguchi, Isamu Nakajima | 1997-01-07 |
| 4986665 | Optical density detector | Akio Yamanishi, Hitoshi Kamezawa, Takao Sakai, Sadafusa Tsuji | 1991-01-22 |