Issued Patents All Time
Showing 51–55 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8033673 | Illumination device and vision measuring instrument | Seiji Shimokawa | 2011-10-11 |
| 7329859 | Photoelectric encoder | Miyako Mizutani | 2008-02-12 |
| 7015447 | Illuminance calibrating method of illuminator, illuminance calibration controller of illuminator, illuminance calibrating program of illuminator, recording medium storing the program and measuring tool | Hiroyuki Yoshida | 2006-03-21 |
| 6857762 | Ring illuminator | Seiji Shimokawa, Kuniaki Obata, Hirotaka Matsubara | 2005-02-22 |
| 6639653 | Double telecentric objective lens | Katsuyoshi Arisawa | 2003-10-28 |